This ammonia decomposition catalyst includes a base material and a first layer provided on the base material. The first layer includes a first zeolite and a platinum group metal attached to the first zeolite.
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
A method to prepare a compound of formula (1), or a salt thereof is provided:
A method to prepare a compound of formula (1), or a salt thereof is provided:
A method to prepare a compound of formula (1), or a salt thereof is provided:
wherein R1 to R4 are each independently an alkyl group.
C01B 39/48 - Other types characterised by their X-ray diffraction pattern and their defined composition using at least one organic template directing agent
3.
HYDROCRACKING CATALYST FOR CARBON-HETEROATOM BOND, METHOD FOR PRODUCING SAID HYDROCRACKING CATALYST, AND METHOD FOR HYDROCRACKING CARBON-HETEROATOM BOND
[Problem] To provide a hydrocracking reaction catalyst in which a strong acid is not used, and which exhibits excellent catalytic activity equal to or higher than that of catalysts in the prior art even when the amount of palladium is reduced compared with palladium catalysts in the prior art. [Solution] A hydrocracking catalyst for hydrocracking the carbon-heteroatom bond of a substrate organic compound containing said carbon-heteroatom bond, the hydrocracking catalyst comprising a carbon-based carrier that carries at least: a palladium catalyst; and a phosphoric acid compound and/or an acetic acid compound.
B01J 31/04 - Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing carboxylic acids or their salts
C07C 209/62 - Preparation of compounds containing amino groups bound to a carbon skeleton by cleaving carbon-to-nitrogen, sulfur-to-nitrogen, or phosphorus-to-nitrogen bonds, e.g. hydrolysis of amides, N-dealkylation of amines or quaternary ammonium compounds
It cannot be said that the reaction rate of a carbonate ester production reaction based on carbon dioxide and a monohydric alcohol has been sufficiently improved by conventional catalysts, and higher reaction efficiency is required. In addition, conventional catalyst-supporting structures used in carbonate ester production reactions cannot be said to have always had sufficiently strong structures. The above problems have been solved by a method for producing a carbonate ester. Specifically, the method for producing a carbonate ester comprises a step for making a monohydric alcohol and carbon dioxide react in the presence of a catalyst structure to produce a carbonate ester, wherein the catalyst structure includes a substrate and a catalyst layer formed on at least a portion of the surface of the substrate and containing at least a solid catalyst and a binder, the solid catalyst contains particulate cerium oxide, and the binder contains cerium oxide as a uniform component.
[Problem] Provided is a novel technical means having excellent noble metal adsorption capacity with respect to a wide range of noble metals. [Solution] The noble metal adsorption material is obtained by modifying a silica carrier with an amino group-containing group and a thiol group-containing group.
B01J 20/22 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising organic material
B01J 20/30 - Processes for preparing, regenerating or reactivating
C22B 3/24 - Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means by adsorption on solid substances, e.g. by extraction with solid resins
An exhaust gas purification catalyst or the like may inhibit poisoning of a noble metal component by a Si-containing compound generated or detached from silicon carbide, may inhibit degradation of exhaust gas purification performances over a long period, and may have excellent long-term durability. An exhaust gas purification catalyst may have a stacked structure including at least a substrate and a first and second coat layer, in that order. The substrate may be selected from a silicon carbide carrier including silicon carbide and a silicon carbide-covering carrier on which a coating layer including silicon carbide is provided. The first coat layer may include a compound including one or more alkaline-earth metals selected from Mg, Ca, Sr, and Ba. The second coat layer may includes one or more platinum group elements selected from Rh, Pt, and Pd.
B01J 35/00 - Catalysts, in general, characterised by their form or physical properties
F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
7.
Catalyst structure, fuel reforming method, and fuel reforming system
Provided is a fuel-reforming catalyst that has excellent reforming activity and durability against deterioration factors such as catalyst poisoning and minimizes the amount of rhodium used. A fuel-reforming catalyst for reforming exhaust gas and a fuel containing a hydrocarbon into a syngas containing hydrogen, including a catalyst component and a carrier supporting the catalyst component, in which the catalyst component includes nickel, and the carrier contains a metal oxide including zirconium or cerium is provided.
C01B 3/40 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts characterised by the catalyst
B01J 23/10 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of rare earths
B01J 23/83 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups with rare earths or actinides
B01J 23/89 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the iron group metals or copper combined with noble metals
F02M 27/02 - Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sonic waves, or the like by catalysts
8.
ORGANIC METAL COMPLEX CATALYST FOR OLEFIN METATHESIS REACTION
NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY (Japan)
Inventor
Choi, Junchul
Fukaya, Norihisa
Matsumoto, Kazuhiro
Mizusaki, Tomoteru
Takagi, Yukio
Seki, Yasuhiro
Abstract
The present invention provides an organic metal complex catalyst for an olefin metathesis reaction, which enables the achievement of a higher yield of a desired substance in an olefin metathesis reaction than the conventional catalysts. The organic metal complex catalyst according to the present invention has a structure represented by formula (1) and is used for an olefin metathesis reaction. In formula (1), M represents a coordination center and is an Ru atom or an ion thereof; R1, R2 and R3 may be the same as or different from each other and independently represent a substituent such as a hydrogen atom; R4, R5, R6 and R7 may be the same as or different from one another and independently represent a substituent such as a hydrogen atom; X represents a halogen atom; and R8 represents a substituent having 3 to 20 carbon atoms and having a π bond.
C07C 67/475 - Preparation of carboxylic acid esters by splitting of carbon-to-carbon bonds and redistribution, e.g. disproportionation or migration of groups between different molecules
9.
EXHAUST GAS PURIFICATION CATALYST AND EXHAUST GAS PURIFICATION DEVICE USING SAME
The present invention provides an exhaust gas purification catalyst which reduces the production of sulfur compound smells and has excellent NOx purification performance and NH3 purification performance, and an exhaust gas purification device using the same. embodiment of the present invention comprises at least a substrate and a catalyst layer. The catalyst layer has a layered structure selected from the group consisting of: a first layered structure having a first catalyst layer, a second catalyst layer and a third catalyst layer in that order; and a second layered structure having a second catalyst layer, a first catalyst layer and a third catalyst layer in that order. The first catalyst layer at least includes first matrix particles and first composite catalyst particles containing a platinum group element supported on the first matrix particles. The second catalyst layer at least includes Ni and alumina particles. The third catalyst layer at least includes third matrix particles and third composite catalyst particles containing a platinum group element supported on the third matrix particles.
B01J 23/89 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the iron group metals or copper combined with noble metals
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
10.
METHOD OF PRODUCING ELECTRODE CATALYST, METHOD OF PRODUCING GAS DIFFUSION ELECTRODE, AND METHOD OF PRODUCING MEMBRANE/ELECTRODE ASSEMBLY
The method of producing an electrode catalyst having a porous carbon support that has nanopores having a pore diameter of 1 to 20 nm and a BET specific surface area of 700 to 900 m2/g, and catalyst particles containing Pt supported on the support, includes: a first step for preparing a powder in which the catalyst particles are supported on the support; and a second step for accommodating the powder obtained through the first step in a flow-type reactor, flowing NH3 gas through the reactor under conditions of a concentration of 10 to 100% and a pressure of 0.1 MPa to 0.5 MPa, and regulating the temperature in the reactor to 500° C. or more and less than the decomposition temperature of ammonia, keeping for 5 to 10 hours to chemically react the powder and the NH3 gas.
It is an object of the present invention to provide an exhaust gas purifying catalyst filter which has enhanced soot collection performance without increasing pressure loss caused by the formation of a catalyst layer in a partition wall of a wall flow type substrate.
It is an object of the present invention to provide an exhaust gas purifying catalyst filter which has enhanced soot collection performance without increasing pressure loss caused by the formation of a catalyst layer in a partition wall of a wall flow type substrate.
A gasoline engine exhaust gas purifying catalyst filter for purifying exhaust gas of a gasoline engine includes: a wall flow type substrate in which an introduction-side cell having an open exhaust gas introduction-side end, and a discharge-side cell adjacent to the introduction-side cell and having an open exhaust gas discharge-side end are defined by a porous partition wall; and a catalyst layer formed in a pore of the partition wall. An absolute value of a maldistribution degree of the catalyst layer formed in the pore of the partition wall is 4.50 or less. A wash coat amount, excluding a mass of a platinum group, of the catalyst layer formed in the pore of the partition wall, is 40 g/L or more and 50 g/L or less. The catalyst layer formed in the pore of the partition wall is a single layer. The catalyst layer is free of Ba.
F01N 3/022 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
12.
METHOD FOR PRODUCING ELECTRODE CATALYST, METHOD FOR PRODUCING GAS DIFFUSION ELECTRODE, AND METHOD FOR PRODUCING FILM-ELECTRODE JOINT BODY
The method produces an electrode catalyst having a porous carbon support that has nanopores having a pore diameter of 1 to 20 nm, micropores having a pore diameter of less than 1 nm, and a BET specific surface area of 1000 to 1500 m2/g, and catalyst particles containing Pt supported on the support, including: preparing a powder in which the catalyst particles are supported on the support by using the support and raw materials of the catalyst particle; and accommodating the powder obtained through the first step in a flow-type reactor, flowing ammonia gas through the reactor under conditions of a concentration of 10 to 100% and a pressure of 0.1 MPa to 0.5 MPa, and regulating the temperature in the reactor to 500° C. or more and less than the decomposition temperature of ammonia, keeping for 5 to 10 hours to chemically react the powder and the ammonia gas.
22O purification performance. An exhaust gas treatment system 100 according to the present disclosure comprises a catalyst disposed in an exhaust gas flow path, the catalyst purifying the exhaust gas flowing through the exhaust gas flow path. The exhaust gas treatment system 100 also comprises one or more catalyst carriers, and a plurality of catalyst regions provided to the one or more catalyst carriers. The catalyst region has at least: a first SCR catalyst region disposed on the upstream side of the exhaust gas flow path, the first SCR catalyst region having a catalyst length Ls in the flow path direction of the exhaust gas flow path; and a first AMOX catalyst region disposed closer to the downstream side of the exhaust gas flow path than the first SCR catalyst region, the first AMOX catalyst region having a catalyst length La in the flow path direction of the exhaust gas flow path. The catalyst length Ls and the catalyst length La satisfy formulas (1) and (2). Formula (1): 0.30 * (Ls + La) ≤ Ls ≤ 0.90 * (Ls + La); Formula (2): 0.10 * (Ls + La) ≤ La ≤ 0.70 * (Ls + La)
F01N 3/022 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
F01N 3/035 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors
22O elimination performance, and an exhaust gas purification device for a lean-burn engine using the same. A selective catalytic reduction system 100 for exhaust gas treatment according to the present disclosure comprises one or more catalyst carriers 10 and a plurality of catalytic regions A provided on the one or more catalyst carriers. The catalytic regions A include at least a first catalytic region A1 containing an iron-supporting zeolite, a second catalytic region A2 containing an iron-supporting zeolite, and a third catalytic region A3 containing a copper-supporting zeolite in the given order from the upstream side of an exhaust gas flow passage. The iron-supporting zeolites are each a zeolite having at least one skeletal structure selected from the group consisting of BEA, CHA, FAU, MOR, MFI, and FER. The copper-supporting zeolite is a zeolite having at least one skeletal structure selected from the group consisting of CHA, AEI, AFX, and AFT.
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
F01N 3/021 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
F01N 3/08 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
F01N 3/24 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
The catalyst for electrodes comprises: a porous support which has nanopores having a pore diameter of from 1 nm to 20 nm and micropores having a pore diameter of less than 1 nm; and a plurality of catalyst particles which are supported by the support. The catalyst particles are supported by both inner portions and outer portions of mesopores of the support, and contain Pt (zerovalent). If an analysis of the particle size distribution of the catalyst particles is performed using three-dimensional reconstructed images obtained through a STEM-based electron tomography measurement, the condition of formula (S1), namely (100×(N10/N20)≤8.0) is satisfied, where N10 represents the number of noble metal particles that are not in contact with pores having a pore diameter of 1 nm or more; and N20 represents the number of catalyst particles that are supported by the inner portions of the nanopores of the support.
This catalyst for electrodes comprises: a porous carbon support which has nanopores having a pore diameter of from 1 nm to 20 nm; and a plurality of catalyst particles which are supported by the support. The catalyst particles contain Pt (zerovalent), and are supported by both inner portions and outer portions of the nanopores of the support. If an analysis of the particle size distribution of the catalyst particles is performed using three-dimensional reconstructed images obtained through a STEM-based electron tomography measurement, the proportion of the catalyst particles supported by the inner portions of the nanoparticles is 50% or more: at least one nanopore is formed in a cubic image having a side of from 20 nm to 50 nm, said cubic image being obtained from a three-dimensional reconstructed image of a catalyst aggregate; and this nanopore has the shape of a continuously extending interconnected pore.
[Problem] The present invention provides a catalyst for hydrogenation reactions, the catalyst having excellent catalyst durability and being capable of selectively hydrogenating only some functional groups and/or unsaturated bonds of an organic compound to be hydrogenated, the organic compound having a plurality of functional groups and/or unsaturated bonds and having been conventionally hydrogenated by a hydrogenation reaction that uses a palladium carbon catalyst. [Solution] A catalyst for hydrogenation reactions according to the present disclosure comprises a carrier, palladium that is loaded on the carrier, and copper that is loaded on the palladium.
B01J 23/89 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the iron group metals or copper combined with noble metals
C07C 41/20 - Preparation of ethers by reactions not forming ether-oxygen bonds by hydrogenation of carbon-to-carbon double or triple bonds
C07C 43/205 - Ethers having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring the aromatic ring being a non-condensed ring
C07C 45/62 - Preparation of compounds having C=O groups bound only to carbon or hydrogen atomsPreparation of chelates of such compounds by reactions not involving the formation of C=O groups by hydrogenation of carbon-to-carbon double or triple bonds
C07C 49/784 - Ketones containing a keto group bound to a six-membered aromatic ring polycyclic with all keto groups bound to a non-condensed ring
C07C 49/813 - Ketones containing a keto group bound to a six-membered aromatic ring containing halogen polycyclic
C07C 67/303 - Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by hydrogenation of unsaturated carbon-to-carbon bonds
C07C 69/616 - Esters of carboxylic acids having a carboxyl group bound to an acyclic carbon atom and having a six-membered aromatic ring in the acid moiety polycyclic
C07C 209/36 - Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitro groups by reduction of nitro groups bound to carbon atoms of six-membered aromatic rings
C07C 213/02 - Preparation of compounds containing amino and hydroxy, amino and etherified hydroxy or amino and esterified hydroxy groups bound to the same carbon skeleton by reactions involving the formation of amino groups from compounds containing hydroxy groups or etherified or esterified hydroxy groups
C07C 217/84 - Compounds containing amino and etherified hydroxy groups bound to the same carbon skeleton having amino groups and etherified hydroxy groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton having amino groups and etherified hydroxy groups bound to carbon atoms of non-condensed six-membered aromatic rings of the same non-condensed six-membered aromatic ring the oxygen atom of at least one of the etherified hydroxy groups being further bound to an acyclic carbon atom
C07C 221/00 - Preparation of compounds containing amino groups and doubly-bound oxygen atoms bound to the same carbon skeleton
C07C 225/22 - Compounds containing amino groups and doubly-bound oxygen atoms bound to the same carbon skeleton, at least one of the doubly-bound oxygen atoms not being part of a —CHO group, e.g. amino ketones having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton
C07C 253/30 - Preparation of carboxylic acid nitriles by reactions not involving the formation of cyano groups
C07C 255/58 - Carboxylic acid nitriles having cyano groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing cyano groups and singly-bound nitrogen atoms, not being further bound to other hetero atoms, bound to the carbon skeleton
C07D 213/73 - Unsubstituted amino or imino radicals
18.
CATALYST FOR ELECTRODE, COMPOSITION FOR FORMING GAS DIFFUSION ELECTRODE, GAS DIFFUSION ELECTRODE, MEMBRANE-ELECTRODE JUNCTION, AND FUEL CELL STACK
Provided is a catalyst for electrode that has excellent catalytic activity and that is capable of contributing toward lower PEFC costs. This catalyst for electrode includes: a hollow carbon support having nanopores with a pore diameter of 1 to 20 nm; and a plurality of catalyst particles supported on the support. The catalyst particles are supported both inside and outside the nanopores of the support, are composed of (zerovalent) Pt, and when analysis of the particle size distribution of the catalyst particles is performed using three-dimensional, reconstructed images obtained through STEM-based electron tomography measurement, the percentage of catalyst particles supported inside the nanopores is 50% or more.
A small-pore zeolite that is modified with phosphorus, is excellent in hydrothermal durability, and has an 8-membered oxygen ring structure. The 8-membered oxygen ring structure is CHA, AEI, and AFX. The small-pore zeolite incudes at least an aluminum element, a silica element, a phosphorus element, wherein the phosphorus element is defined by expression (1), and the small-pore zeolite has an 8-membered oxygen ring structure being of CHA, AEI, or AFX. The phosphorus element that modifies the zeolite is unevenly distributed and richly contained on the surface layer side of the zeolite. A method for producing a phosphorus element-containing zeolite.
B01J 37/02 - Impregnation, coating or precipitation
B01J 29/70 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of types characterised by their specific structure not provided for in groups
A washing device includes executors for executing a normal washing step and a reverse washing step before executing a plate opening step and a cake peeling step. The normal washing step is a step for supplying a washing water to a filter chamber, allowing the washing water to pass through a cake, and then discharging the washing water from filtrate discharge outlets. The reverse washing step is a step for supplying a washing water from the filtrate discharge outlet(s) to the filter chamber, allowing the washing water to pass through the cake, and then discharging the washing water from the filtrate discharge outlet(s) which are different from the filtrate discharge outlet(s) from which the washing water is supplied. The thickness of the electrode catalyst precursor-containing cake at the time of the injection step is adjusted to that of a range that has been previously and experimentally determined.
The present invention provides an electrode catalyst which has excellent catalytic activity, and which can contribute to reducing the cost of a polymer electrolyte fuel cell (PEFC). According to the present invention, an electrode catalyst includes a hollow carrier including nanopores having a pore size of 1 to 20 nm, and a plurality of catalyst particles. The catalyst particles are supported both inside and outside the nanopores of the carrier, and comprise (zero-valent) Pt, and when a particle size distribution analysis of the catalyst particles is carried out using a three-dimensional reconstructed image obtained by electron beam tomography measurement employing STEM, the conditions of formula (S1): 100×(N10/N20)≤8.0 are satisfied (in the formula, N10 is the number of noble metal particles not in contact with a pore having a pore size of 1 nm or more, and N20 is the number of catalyst particles supported inside the nanopores of the carrier).
Provided are: an exhaust gas purification catalyst which is prevented from the poisoning of a noble metal component by an Si-containing compound produced or detached from silicon carbide, is also prevented from the deterioration in exhaust gas purification performance for a long period, and has excellent long-term durability; and others. An exhaust gas purification catalyst 100 has a laminated structure comprising a base material 10, a first coat layer 11 and a second coat layer 21 at least in this order, in which the base material 10 comprises at least one component selected from the group consisting of a silicon carbide support containing silicon carbide and a silicon carbide-coated support having such a structure that a coating layer containing silicon carbide is provided on a support, the first coat layer 11 contains a compound containing at least one alkaline earth metal selected from the group consisting of magnesium (Mg), calcium (Ca), strontium (Sr) and barium (Ba), and the second coat layer 21 contains at least one platinum-group element selected from the group consisting of rhodium (Rh), platinum (Pt) and palladium (Pd).
F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
23.
ORGANIC METAL COMPLEX CATALYST FOR OLEFIN METATHESIS REACTION
NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY (Japan)
Inventor
Choi, Junchul
Fukaya Norihisa
Matsumoto Kazuhiro
Mizusaki Tomoteru
Takagi Yukio
Seki Yasuhiro
Abstract
The present invention provides an organic metal complex catalyst for an olefin metathesis reaction, which enables the achievement of a higher yield of a desired substance in an olefin metathesis reaction than the conventional catalysts. The organic metal complex catalyst according to the present invention has a structure represented by formula (1) and is used for an olefin metathesis reaction. In formula (1), M represents a coordination center and is an Ru atom or an ion thereof; R1, R2and R3may be the same as or different from each other and independently represent a substituent such as a hydrogen atom; R4, R5, R6and R7may be the same as or different from one another and independently represent a substituent such as a hydrogen atom; X represents a halogen atom; and R8 represents a substituent having 3 to 20 carbon atoms and having a π bond.
C07C 1/207 - Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as hetero atoms from carbonyl compounds
C07C 67/475 - Preparation of carboxylic acid esters by splitting of carbon-to-carbon bonds and redistribution, e.g. disproportionation or migration of groups between different molecules
C07C 69/74 - Esters of carboxylic acids having an esterified carboxyl group bound to a carbon atom of a ring other than a six-membered aromatic ring
C07F 7/10 - Compounds having one or more C—Si linkages containing nitrogen
C07F 9/6506 - Five-membered rings having the nitrogen atoms in positions 1 and 3
C07F 15/00 - Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table
C07F 19/00 - Metal compounds according to more than one of main groups
24.
ELECTRODE CATALYST PRODUCTION SYSTEM AND PRODUCTION METHOD
Provided are an electrode catalyst production system and production method omitting transferring an electrode catalyst precursor, and shortening a drying time thereof. The system has an electrode catalyst precursor production device, a washing device and a drying device. The drying device includes executors for executing:
an introduction step for introducing an electrode catalyst precursor into a container main body;
a drying processing step for drying the precursor by heating and depressurizing the container main body, and stirring and mixing the precursor with a stirring blade;
a cooling step for cooling the precursor by cooling and depressurizing the container main body, and stirring and mixing the precursor with the stirring blade;
a slow oxidation step for performing a slow oxidation treatment on the precursor by supplying air to the container main body; and
a retrieving step for retrieving the precursor inside the container main body.
[Problem] To provide a fuel reforming catalyst which exhibits excellent reforming activity and excellent durability against causes of degradation, such as catalyst poisoning, and in which the usage quantity of rhodium is minimized. [Solution] This fuel reforming catalyst is used for reforming a fuel, which contains exhaust gases and hydrocarbons, into a syngas that contains hydrogen, and the fuel reforming catalyst comprises a catalyst component and a carrier on which the catalyst component is supported. The catalyst component contains nickel. The carrier contains a metal oxide that contains zirconium or cerium.
B01J 23/83 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups with rare earths or actinides
B01J 23/89 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the iron group metals or copper combined with noble metals
C01B 3/38 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts
F02M 27/02 - Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sonic waves, or the like by catalysts
[Problem] To provide a novel exhaust gas purification catalyst not containing Ce compounds, which have been conventionally considered essential for low-temperature catalytic activity, and having excellent oxidation activity at low temperatures. [Solution] An oxidation catalyst for exhaust gas purification provided with a base material and a catalyst layer provided on the base material. The catalyst layer contains first catalyst particles and second catalyst particles. The first catalyst particles include: first carrier particles containing a rare earth element other than cerium; and, palladium (Pd) supported on the carrier particles. The second catalyst particles include: second carrier particles; and, platinum (Pt) and palladium (Pd) supported on the carrier particles.
The present invention provides a method of producing an electrode catalyst that offers excellent catalytic activity and excellent durability in an electrode catalyst layer of an MEA for a PEFC. Namely, the present invention is a method of producing an electrode catalyst (having a hollow carbon support that has nanopores having a pore diameter of 1-20 nm and a BET specific surface area of 700-900 m2333 gas to chemically react.
The present invention provides a method for producing an electrode catalyst which has excellent catalytic activity and excellent durability in an electrode catalyst layer of an MEA in a PEFC. Specifically, a method according to the present invention for producing an electrode catalyst (which contains a hollow carbon carrier having nanopores with a pore diameter of 1-20 nm and having a BET specific surface area of 1,000-1,500 m2333 gas by maintaining the temperature at 500°C or higher but lower than the decomposition temperature of ammonia for 5-10 hours.
The purpose of the present invention is to provide an exhaust gas purification catalyst filter which has enhanced soot collecting performance without increasing pressure loss caused by the formation of a catalyst layer in a partition wall of a wall flow-type substrate. This exhaust gas purification catalyst filter for a gasoline engine purifies exhaust gas from a gasoline engine and comprises: a wall flow-type substrate in which an introduction-side cell having an opened end part on an exhaust gas introduction side, and a discharge-side cell adjacent to the introduction-side cell and having an opened end part on an exhaust gas discharge side are defined by a porous partition wall; and a catalyst layer formed in a pore of the partition wall, wherein the absolute value of the uneven distribution degree of the catalyst layer formed in the pore of the partition wall is at most 4.50, the wash coat amount, excluding the mass of a platinum group, in the catalyst layer formed in the pore of the partition wall is 40-50 g/L, the catalyst layer formed in the pore of the partition wall is a single layer, and the catalyst layer does not contain Ba.
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
B01J 23/68 - Silver or gold with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
F01N 3/022 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
F01N 3/035 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors
F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
F01N 3/24 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
[Problem] To provide a fuel reforming catalyst having excellent reforming activity and excellent durability against deterioration factors such as catalyst poisoning. [Solution] This fuel reforming catalyst for reforming a hydrocarbon-containing fuel into a hydrogen-containing synthesis gas comprises: a catalyst component containing a platinum group metal element and a promoter component; and a carrier for supporting the catalyst component and the promoter component, wherein the promoter component contains at least one element selected from the group consisting of scandium, yttrium, lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, barium, nickel and strontium.
C01B 3/40 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts characterised by the catalyst
B01J 23/58 - Platinum group metals with alkali- or alkaline earth metals or beryllium
B01J 23/63 - Platinum group metals with rare earths or actinides
31.
COMPOUND AND PRODUCTION METHOD THEREOF, AFX-TYPE ZEOLITE AND PRODUCTION METHOD THEREOF, AND HONEYCOMB STACKED CATALYST
The present invention provides, for example, a compound represented by formula (1), or a salt thereof:
The present invention provides, for example, a compound represented by formula (1), or a salt thereof:
The present invention provides, for example, a compound represented by formula (1), or a salt thereof:
wherein R1 to R4 are each independently an alkyl group.
C01B 39/48 - Other types characterised by their X-ray diffraction pattern and their defined composition using at least one organic template directing agent
32.
EXHAUST GAS PURIFICATION CATALYST FOR SADDLE RIDING-TYPE VEHICLE
22 particles co-supported on the surface of the zirconia-based host particles; second composite catalyst particles having alumina host particles and Pd supported on the surface of the alumina host particles; and/or third composite catalyst particles having ceria alumina host particles and Pd supported on the surface of the ceria alumina host particles.
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
F01N 3/24 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
The present invention provides a palladium complex which enables a coupling reaction to progress in a short period of time even under mild reaction conditions such as at room temperature, and which enables the achievement of a target product with high yield; and the present invention uses a palladium complex which is represented by general formula (A). (In the formula, X represents a chlorine atom or the like; each of R1to R3independently represents an alkyl group having from 1 to 6 carbon atoms, said alkyl group being optionally substituted by a fluorine atom, or the like; and each of R4to R6 independently represents an alkyl group having from 1 to 20 carbon atoms, or the like.)
C07C 41/30 - Preparation of ethers by reactions not forming ether-oxygen bonds by increasing the number of carbon atoms, e.g. by oligomerisation
C07C 43/205 - Ethers having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring the aromatic ring being a non-condensed ring
C07C 45/61 - Preparation of compounds having C=O groups bound only to carbon or hydrogen atomsPreparation of chelates of such compounds by reactions not involving the formation of C=O groups
C07F 15/00 - Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table
Provided are a selective reducing catalyst for diesels and a diesel exhaust gas purification apparatus in which deterioration of NOx removal performance due to phosphorus poisoning is less likely to occur.
Provided are a selective reducing catalyst for diesels and a diesel exhaust gas purification apparatus in which deterioration of NOx removal performance due to phosphorus poisoning is less likely to occur.
The selective reducing catalyst for diesels is arranged in a diesel engine, adsorbs ammonia and brings the ammonia into contact with nitrogen oxides in an exhaust gas discharged from a diesel engine to perform reduction, the selective reducing catalyst comprises: a catalyst carrier; a catalyst region provided on at least the catalyst carrier; and a phosphorus trapping region provided on at least the catalyst region, wherein the catalyst region comprises one or more selected from the group consisting of a zeolite-based catalyst containing at least zeolite and a transition metal element supported on the zeolite, a W—Ce—Zr composite oxide-based catalyst, and a vanadium-based catalyst, and the phosphorus trapping region comprises at least one or more selected from the group consisting of alumina and a rare earth-based basic oxide.
F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl specially adapted for catalytic conversion
B01J 29/72 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of types characterised by their specific structure not provided for in groups containing iron group metals, noble metals or copper
35.
Hydrogenation catalyst used in amide compound hydrogenation and method for producing amine compound using same
Provided is a catalyst for amide compound hydrogenation characterized in that rhodium and molybdenum are supported on hydroxyapatite, the catalyst for amide compound hydrogenation providing a catalyst that can promote a reduction reaction that converts an amide compound into an amine compound, can be used under moderate conditions, and has durability that allows repeated use thereof while retaining high activity. Also provided is a method for producing an amine compound, the method being characterized by including bringing an amide compound into contact with the catalyst for amide compound hydrogenation to cause hydrogenation, thereby producing an amine compound.
The present invention provides a catalyst for electrodes, said catalyst having excellent catalytic activity and being capable of contributing to the cost reduction of a PEFC. This catalyst for electrodes comprises: a hollow carbon carrier which has nanopores having a pore diameter of from 1 nm to 20 nm; and a plurality of catalyst particles which are supported by the carrier. The catalyst particles contain Pt (zerovalent), and are supported by both inner portions and outer portions of the nanopores of the carrier. If an analysis of the particle size distribution of the catalyst particles is performed using three-dimensional reconstructed images obtained through a STEM-based electron tomography measurement, the proportion of the catalyst particles supported by the inner portions of the nanoparticles is 50% or more; at least one nanopore is formed in a cubic image having a side of from 20 nm to 50 nm, said cubic image being obtained from a three-dimensional reconstructed image of a catalyst aggregate; and this nanopore has the shape of a continuously extending intercommunicating pore.
The present invention provides a catalyst for electrodes, said catalyst having excellent catalytic activity and being capable of contributing to the cost reduction of a PEFC. This catalyst for electrodes comprises: a hollow carrier which has nanopores having a pore diameter of from 1 nm to 20 nm and micropores having a pore diameter of less than 1 nm; and a plurality of catalyst particles which are supported by the carrier. The catalyst particles are supported by both inner portions and outer portions of mesopores of the carrier, and contain Pt (zerovalent). If an analysis of the particle size distribution of the catalyst particles is performed using three-dimensional reconstructed images obtained through a STEM-based electron tomography measurement, the condition of formula (S1), namely (100 × (N10/N20) ≤ 8.0) is satisfied. In the formula, N10 represents the number of noble metal particles that are not in contact with pores having a pore diameter of 1 nm or more; and N20 represents the number of catalyst particles that are supported by the inner portions of the nanopores of the carrier.
METHANE OXIDATION CATALYST, METHANE OXIDATION MULTILAYER CATALYST, EXHAUST GAS PURIFICATION SYSTEM USING SAID METHANE OXIDATION CATALYST OR SAID METHANE OXIDATION MULTILAYER CATALYST, AND METHOD FOR PRODUCING METHANE OXIDATION CATALYST
The present invention provides: a novel methane oxidation catalyst which has enhanced methane catalytic activity in a low temperature range of less than 500°C; a methane oxidation multilayer catalyst; an exhaust gas purification system which uses this methane oxidation catalyst or this methane oxidation multilayer catalyst; a method for producing a methane oxidation catalyst; and the like. A methane oxidation catalyst which is used for the purpose of oxidizing methane contained in a gas, and which contains alumina-based base material particles and composite particles that are supported by the alumina-based base material particles, while containing Pd and Ni.
B01J 23/89 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the iron group metals or copper combined with noble metals
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
B01J 35/10 - Solids characterised by their surface properties or porosity
F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
39.
HYDROCRACKING CATALYST, AND METHOD FOR PRODUCING ORGANIC COMPOUND PRODUCT BY HYDROCRACKING CARBON-HETEROATOM BOND
Provided are: a hydrocracking catalyst capable of hydrocracking a carbon-heteroatom bond in a substrate organic compound containing the carbon-heteroatom bond, the hydrocracking catalyst comprising at least a palladium catalyst and a carbon-based catalyst having a Bronsted acid site; and a method for producing an organic compound product by hydrocracking a carbon-heteroatom bond. The hydrocracking reaction catalyst is greatly reduced in the amount of palladium compared with the conventional palladium catalysts and has an equivalent or superior catalytic activity to those of the conventional catalysts, and it becomes possible to produce an organic material product continuously while preventing the deactivation of the palladium catalyst.
C07C 209/62 - Preparation of compounds containing amino groups bound to a carbon skeleton by cleaving carbon-to-nitrogen, sulfur-to-nitrogen, or phosphorus-to-nitrogen bonds, e.g. hydrolysis of amides, N-dealkylation of amines or quaternary ammonium compounds
The present invention provides a method for producing a compound represented by formula (2), comprising at least a step of preparing a compound represented by formula (1) and a step of reacting the compound represented by formula (1) with a hydrogen source using a catalyst,
2 are each independently an alkyl group.
3) is 7 or more and 20 or less, a ratio of the copper atom to a T atom (Cu/T) is 0.005 or more and 0.060 or less, a ratio of the phosphorus atom to the T atom (P/T) is 0.005 or more and 0.060 or less, and a ratio of the phosphorus atom to the copper atom (P/Cu) is 0.1 or more and 3 or less.
B01J 35/10 - Solids characterised by their surface properties or porosity
C01B 39/48 - Other types characterised by their X-ray diffraction pattern and their defined composition using at least one organic template directing agent
42.
ELEMENTAL PHOSPHORUS-CONTAINING ZEOLITE AND METHOD FOR PRODUCING ELEMENTAL PHOSPHORUS-CONTAINING ZEOLITE
The present invention provides a small pore size zeolite which is modified with phosphorus, has high hydrothermal endurance and has an 8-membered oxygen ring structure selected from the group consisting of CHA, AEI and AFX types. This zeolite is a small pore size zeolite which contains at least elemental aluminum, elemental silica and elemental phosphorus wherein the elemental phosphorus is specified by expression (1), and which has an 8-membered oxygen ring structure selected from the group consisting of CHA, AEI and AFX types. The elemental phosphorus modifying the zeolite is present in such a manner that the concentration thereof is higher on the surface layer side of the zeolite. (1): P1
C01B 39/48 - Other types characterised by their X-ray diffraction pattern and their defined composition using at least one organic template directing agent
C07C 41/30 - Preparation of ethers by reactions not forming ether-oxygen bonds by increasing the number of carbon atoms, e.g. by oligomerisation
C07C 43/205 - Ethers having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring the aromatic ring being a non-condensed ring
C07C 209/10 - Preparation of compounds containing amino groups bound to a carbon skeleton by substitution of functional groups by amino groups by substitution of halogen atoms with formation of amino groups bound to carbon atoms of six-membered aromatic rings or from amines having nitrogen atoms bound to carbon atoms of six-membered aromatic rings
C07C 211/54 - Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to two or three six-membered aromatic rings
C07C 209/10 - Preparation of compounds containing amino groups bound to a carbon skeleton by substitution of functional groups by amino groups by substitution of halogen atoms with formation of amino groups bound to carbon atoms of six-membered aromatic rings or from amines having nitrogen atoms bound to carbon atoms of six-membered aromatic rings
45.
ELECTRODE CATALYST, COMPOSITION FOR FORMING GAS DIFFUSION ELECTRODE, GAS DIFFUSION ELECTRODE, MEMBRANE ELECTRODE ASSEMBLY, AND FUEL CELL STACK
The present invention provides an electrode catalyst which has excellent catalytic activity, and which can contribute to reducing the cost of a polymer electrolyte fuel cell (PEFC). According to the present invention, an electrode catalyst includes a hollow carrier including nanopores having a pore size of 1 to 20 nm, and a plurality of catalyst particles. The catalyst particles are supported both inside and outside the nanopores of the carrier, and comprise (zero-valent) Pt, and when a particle size distribution analysis of the catalyst particles is carried out using a three-dimensional reconstructed image obtained by electron beam tomography measurement employing STEM, the conditions of formula (S1): 100×(N10/N20)≤8.0 are satisfied (in the formula, N10 is the number of noble metal particles not in contact with a pore having a pore size of 1 nm or more, and N20 is the number of catalyst particles supported inside the nanopores of the carrier).
Provided are a production system and a production method which are for a catalyst for an electrode and by which the work of an operator for transferring a catalyst precursor for an electrode can be eliminated and the drying time of the catalyst precursor for an electrode can be shortened. A production system 10 for a catalyst for an electrode includes a production device 12 for a catalyst precursor for an electrode, a washing device 13, and a drying device 14, and has a configuration wherein the drying device 14 is provided with means for executing: an introduction step S31 for introducing the catalyst precursor for an electrode into a container body 202; a drying step S32 for drying the catalyst precursor for an electrode by heating and depressurizing the container body 202, and stirring and mixing the catalyst precursor for an electrode with a stirring blade 204; a cooling step S33 for cooling the catalyst precursor for an electrode by cooling and depressurizing the container body 202, and stirring and mixing the catalyst precursor for an electrode with the stirring blade 204; a slow oxidation step S34 for supplying air into the container body 202 and slowly oxidizing the catalyst precursor for an electrode; and an extraction step S35 for extracting the catalyst precursor for an electrode in the container body 202.
B01D 25/12 - Filter presses, i.e. of the plate or plate and frame type
F26B 11/16 - Machines or apparatus for drying solid materials or objects with movement which is non-progressive in stationary drums or other mainly-closed receptacles with moving stirring devices the stirring device moving in a vertical or steeply-inclined plane
Provided is a catalyst for electrode that has excellent catalytic activity and that is capable of contributing toward lower PEFC costs. This catalyst for electrode includes: a hollow carbon support having nanopores with a pore diameter of 1-20 nm; and a plurality of catalyst particles supported on the support. The catalyst particles are supported both inside and outside the nanopores of the support, are composed of (zerovalent) Pt, and when analysis of the particle size distribution of the catalyst particles is performed using three-dimensional, reconstructed images obtained through STEM-based electron tomography measurement, the percentage of catalyst particles supported inside the nanopores is 50% or more.
The present invention provides an electrode-catalyst manufacturing system and manufacturing method that are capable of eliminating the scraping of an electrode-catalyst precursor that is performed by a worker and of reducing the washing time for the electrode-catalyst precursor. An electrode-catalyst manufacturing system 10 has an electrode-catalyst precursor manufacturing device 12, a washing device 13, and a drying device 14. The washing device 13 includes means that execute, after execution of a plate closing step S21 and a press fitting step S22, a normal washing step S23 for supplying washing water 43 from a feed solution supply pipe 114 to a filter chamber 112 to make the washing water 43 pass through a cake 40 containing an electrode-catalyst precursor, and then discharging the washing water 43 from filtrate discharge ports 115, 115', and a reverse washing step S24 for supplying the washing water 43 from the filtrate discharge port 115 to the filter chamber 112 to make the washing water 43 pass through the cake 40 containing the electrode-catalyst precursor, and then discharging the washing water 43 from the filtrate discharge port 115', which is different from the filtrate discharge port 115 from which the washing water 43 is supplied, and that further execute a plate opening step S25 and a cake peeling step S26. The washing device 13 is configured to adjust the thickness of the cake, which contains the electrode-catalyst precursor, during the press fitting step S22, so as to be within a range experimentally set in advance.
Provided are an LNT layered catalyst for a lean burn gasoline engine having an enhanced NOx storage rate and capable of developing a higher NOx purification rate, and an exhaust gas purification apparatus using the same, the LNT layered catalyst including a substrate, a first catalyst layer including ceria-alumina particles carrying Pt, Pd, and BaO, and a second catalyst layer including ceria-alumina particles carrying Pt and Rh, in which a content of Pt in the first catalyst layer is 0.45 to 0.85 mass %; among Pt included in the first catalyst layer, a content proportion in a first depth region is 88 to 90 mass %, and a content proportion in a second depth region is 10 to 12 mass %; a content of Ba in the first catalyst layer is 4 to 11 mass %; and the second catalyst layer is substantially free from Ba.
B01J 23/58 - Platinum group metals with alkali- or alkaline earth metals or beryllium
B01J 23/63 - Platinum group metals with rare earths or actinides
B01J 35/00 - Catalysts, in general, characterised by their form or physical properties
F01N 3/08 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
Provide an electrode catalyst with excellent catalytic activity that can contribute to cost reduction of PEFC. The electrode catalyst includes a hollow carbon carrier with mesopores with a pore size of 2 to 50 nm and a catalyst particle supported on the carrier. The catalyst particle is supported on both inside and outside the mesopores of the carrier, and have a core portion formed on the carrier and a shell portion covering at least a part of the surface of the core portion. Pd is included in the core portion, and Pt is included in the shell portion, and when the analysis of the particle size distribution of the catalyst particles using the three dimensional reconstructed image obtained by electron beam tomography (electron tomography) measurement using an STEM is performed, the ratio of the catalyst particles supported inside the mesopore is 50% or more.
33 in exhaust gas discharged from a lean combustion engine, a reducing agent supply means that supplies, into the exhaust gas flow path, at least one reducing agent selected from the group consisting of urea components and ammonia components, and at least one first selective reduction type catalyst for absorbing ammonia to cause ammonia to contact with NOx to reduce NOx, wherein: the first selective reduction type catalyst has a first base material and a laminate catalyst disposed on the first base material; the laminate catalyst has at least a first catalyst layer that contains at least zeolite and a transition metal element supported on the zeolite and a second catalyst layer that contains at least an oxygen occlusion/release material and a transition metal element; and the first base material has disposed thereon the first catalyst layer and the second catalyst layer at least in this order.
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
F01N 3/022 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
F01N 3/08 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
Provided is an exhaust-gas-purifying catalyst production method for purifying exhaust gas that is exhausted from an internal combustion engine, the method including: a substrate preparing step for preparing a wall-flow-type substrate 100 which was subjected to a process of adhering a solid resin 21 to a barrier; and a catalyst coating step for coating a catalyst slurry 31a onto the barrier. The amount of adherence of the solid resin 21 is 1.50 to 9.41g/L.
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
B01J 23/63 - Platinum group metals with rare earths or actinides
B01J 37/02 - Impregnation, coating or precipitation
F01N 3/022 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
F01N 3/035 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors
53.
COMPOUND AND METHOD FOR PRODUCING SAME, AFX-TYPE ZEOLITE AND METHOD FOR PRODUCING SAME, AND HONEYCOMB MULTILAYER CATALYST
The present invention provides a compound represented by general formula (1), a salt thereof or the like. (In formula (1), each of R1-R4 independently represents an alkyl group.)
C01B 39/48 - Other types characterised by their X-ray diffraction pattern and their defined composition using at least one organic template directing agent
Provided is, for example, an exhaust gas-purifying three-way catalyst which is small in the amount of a platinum group element used, which can be early increased in temperature to a catalytically active temperature, which is suppressed in degradation in performance due to a catalyst poison included in an exhaust gas even if placed directly under an engine, and which is excellent in purification performance. An exhaust gas-purifying three-way catalyst including at least a catalyst carrier 11 and a catalyst layer 21, wherein the catalyst layer 21 has a layered structure having at least a first catalyst layer L1, a second catalyst layer L2 and a third catalyst layer L3 in the listed order, the first catalyst layer L1 contains a first composite catalyst particle including palladium supported on a first base material particle, the second catalyst layer L2 contains a second composite catalyst particle including rhodium supported on a second base material particle, the third catalyst layer L3 contains a third composite catalyst particle including palladium supported on a third base material particle, and the total coating weight Wt in the catalyst layers L1, L2, and L3 (provided that the platinum group element included in each of the catalyst layers is excluded) is 110 g/L or more and 225 g/L or less in total, per volume of the catalyst carrier 11.
B01J 23/46 - Ruthenium, rhodium, osmium or iridium
B01J 23/58 - Platinum group metals with alkali- or alkaline earth metals or beryllium
B01J 23/63 - Platinum group metals with rare earths or actinides
B01J 35/00 - Catalysts, in general, characterised by their form or physical properties
F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
Provided is, for example, an exhaust gas-purifying three-way catalyst which is suppressed in particle growth due to sintering of a catalytically active component on a carrier in exposure to a high temperature and thus is enhanced in purification performance, and a method for producing the same, as well as an integral structure type exhaust gas-purifying catalyst using the same.
The exhaust gas-purifying three-way catalyst of the present invention includes a composite particle which contains a base material particle having a pore size of 100 to 650 nm as measured by a mercury intrusion method and a catalytically active particle of a platinum group element supported on the base material particle, in which a content proportion of the catalytically active particle is 0.001 to 30% by mass in total in terms of metal of the platinum group element, based on a total amount of the composite particle.
F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
56.
SELECTIVE REDUCTION CATALYST FOR DIESEL AND DIESEL EXHAUST GAS PURIFICATION APPARATUS
xx purification performance caused by phosphorus poisoning is unlikely to occur. This selective reduction catalyst for diesel is disposed in a diesel engine, adsorbs ammonia, and reduces a nitrogen oxide in exhaust gas emitted from the diesel engine by bringing the nitrogen oxide into contact with the ammonia. The selective reduction catalyst for diesel has a catalyst carrier, a catalyst region provided at least on the catalyst carrier, and a phosphorus trap region provided at least on the catalyst region, wherein: the catalyst region includes at least one selected from the group consisting of a zeolite-based catalyst containing at least a zeolite and a transition metal element supported on the zeolite, a W-Ce-Zr composite oxide-based catalyst, and a vanadium-based catalyst; and the phosphorus trap region includes at least one selected from the group consisting of alumina and rare-earth basic oxides.
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
F01N 3/08 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
This catalyst for amide compound hydrogenation is capable of carrying out a reduction reaction that converts an amide compound into an amine compound, and is characterized by including rhodium and molybdenum being supported on hydroxyapatite to provide a catalyst that can be used under a moderate condition and has durability that allows repeated use thereof while retaining a high activity level. This method for producing an amine compound is characterized in that an amide compound is hydrogenated by being brought into contact with said catalyst for amide compound hydrogenation to obtain an amine compound.
C07C 209/26 - Preparation of compounds containing amino groups bound to a carbon skeleton by reductive alkylation of ammonia, amines or compounds having groups reducible to amino groups, with carbonyl compounds by reduction with hydrogen
C07C 209/50 - Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of carboxylic acids or esters thereof in presence of ammonia or amines, or by reduction of nitriles, carboxylic acid amides, imines or imino-ethers by reduction of carboxylic acid amides
C07C 211/08 - Monoamines containing alkyl groups having a different number of carbon atoms
C07C 211/17 - Compounds containing amino groups bound to a carbon skeleton having amino groups bound to acyclic carbon atoms of a saturated carbon skeleton containing rings other than six-membered aromatic rings containing only non-condensed rings
C07C 211/27 - Compounds containing amino groups bound to a carbon skeleton having amino groups bound to acyclic carbon atoms of an unsaturated carbon skeleton containing at least one six-membered aromatic ring having amino groups linked to the six-membered aromatic ring by saturated carbon chains
C07C 211/35 - Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of rings other than six-membered aromatic rings of a saturated carbon skeleton containing only non-condensed rings
C07D 295/02 - Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms containing only hydrogen and carbon atoms in addition to the ring hetero elements
C07D 295/023 - PreparationSeparationStabilisationUse of additives
C07D 295/03 - Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms containing only hydrogen and carbon atoms in addition to the ring hetero elements containing only one hetero ring with the ring nitrogen atoms directly attached to acyclic carbon atoms
Zeolite with rare earth element-substituted framework and method for producing same, and NOx adsorber, selective catalytic reduction catalyst and automobile exhaust gas catalyst comprising same
It is intended to provide a novel zeolite with a rare earth element-substituted framework which has a higher amount of NOx adsorbed and a method for producing the same, and a NOx adsorption member and a catalyst for automobile exhaust gas, etc. comprising the same. The present invention provides a zeolite with a rare earth element-substituted framework, comprising at least a zeolite and at least one rare earth element selected from the group consisting of Ce, La, Nd and Pr, wherein a content ratio of the rare earth element is 1 to 15% by mass in total based on the total amount, and one or some of Al and/or Si atoms constituting the framework of the zeolite are replaced with the rare earth element.
C01B 39/06 - Preparation of isomorphous zeolites characterised by measures to replace the aluminium or silicon atoms in the lattice framework by atoms of other elements
B01J 29/70 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of types characterised by their specific structure not provided for in groups
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY (Japan)
N.E. CHEMCAT CORPORATION (Japan)
Inventor
Choi, Junchul
Fukaya, Norihisa
Onozawa, Shunya
Sato, Kazuhiko
Yasuda, Hiroyuki
Mizusaki, Tomoteru
Takagi, Yukio
Abstract
An organometallic complex catalyst that makes it possible to obtain a higher yield of a desired product than conventional catalysts in a cross-coupling reaction. The organometallic complex catalyst has a structure represented by formula (1) and is for use in a cross-coupling reaction. In formula (1), M is the coordination center and represents a metal atom such as Pd or an ion thereof. R1, R2, and R3 may be the same or different and are a substituent such as a hydrogen atom. R4, R5, R6, and R7 may be the same or different and are a substituent such as a hydrogen atom. X represents a halogen atom. R8 represents a substituent that has a π bond and 3-20 carbon atoms. With regard to the electron-donating properties of R1-R7 with respect to the coordination center M of the ligand containing R1-R7 that is indicated in formula (2), R1-R7 are arranged in combination such that the TEP value obtained from infrared spectroscopy shifts toward the low frequency side compared to the TEP value of the ligand of formula (2-1).
F01N 3/08 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
B01D 53/92 - Chemical or biological purification of waste gases of engine exhaust gases
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
B01J 29/78 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of types characterised by their specific structure not provided for in groups containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
F01N 3/035 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors
F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
F01N 3/24 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
B01J 23/63 - Platinum group metals with rare earths or actinides
B01J 35/10 - Solids characterised by their surface properties or porosity
B01J 37/02 - Impregnation, coating or precipitation
F01N 3/035 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors
2233) is 7-20, the ratio (Cu/T) of copper atoms to T atoms is 0.005-0.060, the ratio (P/T) of phosphorus atoms to T atoms is 0.005-0.060, and the ratio (P/Cu) of phosphorus atoms to copper atoms is 0.1-3.
C01B 39/48 - Other types characterised by their X-ray diffraction pattern and their defined composition using at least one organic template directing agent
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
63.
METHOD FOR MANUFACTURING CU-P CO-LOADED ZEOLITE, CATALYST PRECURSOR COMPOSITION AND TREATMENT LIQUID USABLE IN SAME, AND METHOD FOR MANUFACTURING LAMINATE CATALYST
Provided are a novel method for manufacturing a Cu-P co-loaded zeolite, etc., whereby a high-performance Cu-P co-loaded zeolite can be obtained at comparatively low cost by a simpler process and with little environmental burden. A method for manufacturing a Cu-P co-loaded zeolite containing at least a small-pore-diameter zeolite and non-skeletal copper atoms and non-skeletal phosphorus atoms loaded on the small-pore-diameter zeolite, wherein the method for manufacturing a Cu-P co-loaded zeolite has at least a step for preparing a Cu-loaded small-pore-diameter zeolite, and a P loading step for applying a treatment liquid containing at least phosphoric acid and an organic base to the Cu-loaded small-pore-diameter zeolite.
C01B 39/48 - Other types characterised by their X-ray diffraction pattern and their defined composition using at least one organic template directing agent
B01J 37/02 - Impregnation, coating or precipitation
F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
The present invention provides a method for producing a compound represented by formula (2), which comprises at least: a step for preparing a compound represented by formula (1); and a step for having the compound represented by formula (1) react with a hydrogen source with use of a catalyst. (In formula (1) and formula (2), each of R1and R2 independently represents an alkyl group.)
The present invention provides a technique capable of adjusting the loading positions of gold and palladium in a VAM catalyst by a method of producing a palladium-gold loaded catalyst for vinyl acetate synthesis. The method includes a step of impregnating a spherical porous molded carrier of an inorganic oxide with a mixed aqueous solution containing a palladium precursor as a catalytically active species and a gold precursor as a co-catalyst component, and subsequently impregnating the resultant spherical porous molded carrier with an aqueous alkaline solution to water-insolubilize the palladium precursor and the gold precursor in the spherical porous molded carrier to obtain a palladium-gold immobilized spherical porous molded carrier; and a subsequent step of adjusting the moisture content of the palladium-gold immobilized spherical porous molded carrier.
B01J 37/18 - Reducing with gases containing free hydrogen
C07C 67/055 - Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides onto unsaturated carbon-to-carbon bonds with oxidation in the presence of platinum group metals or their compounds
An organic/inorganic composite material wherein a silica carrier is modified with an organic silicon compound containing a functional group capable of binding to a transition metal element and an alkoxysilane．This organic/inorganic composite material, which is characterized in that the absorbance of a solution thereof, said solution being obtained by preparing a liquid mixture under the following measurement conditions and then removing solid matters therefrom, measured at a wavelength of 400 [nm] using an ultraviolet-visible spectrophotometer is 0.5 or less, can be confirmed as industrially useful merely by measuring the absorbance without a need for measuring physical properties. [Measurement conditions] 15 [ml] of a tetrahydrofuran (THF) solution of palladium acetate having a palladium concentration of 1 [g/l] in terms of metal. 0.147 [mmol] in terms of the organic silicon compound. Stirrer: 1 [cm] in length and 4 [mm] in diameter. Rotation number: 300 [rpm]. Mixing container: A cylindrical sealed container of 25 [mm] in inner diameter. Stirring time: 1 [hour]. Optical path length: 10 [mm].
C01B 33/18 - Preparation of finely divided silica neither in sol nor in gel formAfter-treatment thereof
B01J 20/10 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
B01J 20/30 - Processes for preparing, regenerating or reactivating
67.
HYDROGENATION CATALYST FOR USE IN HYDROGENATING AMIDE COMPOUND AND METHOD FOR PRODUCING AMINE COMPOUND USING SAME
A hydrogenation catalyst for amide compounds which comprises hydroxyapatite and, fixed thereto, platinum and vanadium, characterized in that 15-80% of the surface of the platinum is covered with vanadium. With the catalyst, it is possible to conduct reduction reactions in which amide compounds are converted to amine compounds. The catalyst can be used even under mild conditions and has such durability that the catalyst can be repeatedly used while retaining the high activity.
C07C 209/26 - Preparation of compounds containing amino groups bound to a carbon skeleton by reductive alkylation of ammonia, amines or compounds having groups reducible to amino groups, with carbonyl compounds by reduction with hydrogen
C07C 211/08 - Monoamines containing alkyl groups having a different number of carbon atoms
C07D 207/46 - Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with hetero atoms directly attached to the ring nitrogen atom
C07D 215/06 - Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to the ring carbon atoms having only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, attached to the ring nitrogen atom
C07D 223/04 - Heterocyclic compounds containing seven-membered rings having one nitrogen atom as the only ring hetero atom not condensed with other rings with only hydrogen atoms, halogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
C07D 295/023 - PreparationSeparationStabilisationUse of additives
C07D 295/027 - Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms containing only hydrogen and carbon atoms in addition to the ring hetero elements containing only one hetero ring
C07D 295/03 - Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms containing only hydrogen and carbon atoms in addition to the ring hetero elements containing only one hetero ring with the ring nitrogen atoms directly attached to acyclic carbon atoms
NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY (Japan)
Inventor
Mizusaki Tomoteru
Takagi Yukio
Choi, Junchul
Fukaya Norihisa
Matsumoto Kazuhiro
Abstract
The purpose of the present invention is to provide a cross-coupling reaction catalyst that has an organometal complex satisfactorily immobilized on a support, and that can readily provide a target material in high yields in a relatively short reaction time and with a relatively small amount of use. The cross-coupling reaction catalyst according to the present invention comprises a support moiety composed of a synthetic resin and an organometal complex moiety that is immobilized by chemical bonding to the support moiety, and has a structure given by formula (P1). R1and R2in (P1) may be the same or different and are a substituent such as a hydrogen atom. R3, R4, R5, R6, R8, and R9may be the same or different and are a substituent such as a hydrogen atom. X represents a halogen atom and R722OH group in terminal position.
C07C 209/10 - Preparation of compounds containing amino groups bound to a carbon skeleton by substitution of functional groups by amino groups by substitution of halogen atoms with formation of amino groups bound to carbon atoms of six-membered aromatic rings or from amines having nitrogen atoms bound to carbon atoms of six-membered aromatic rings
An exhaust gas purification catalyst for purifying an exhaust gas discharged from an internal combustion engine, said catalyst comprising a wall flow-type substrate, wherein an inlet side cell having an opening end on an exhaust gas inlet side and an outlet side cell being adjacent to the inlet side cell and having an opening end on an exhaust gas outlet side are defined by a porous partition wall, and a catalyst layer formed in pores of the partition wall, wherein the volume of 20-100 nm pores of the partition wall, in which the catalyst layer is formed, is 0.06 cc/g or more and the total pore volume of the partition wall, in which the catalyst layer is formed, is 0.4 cc/g or more.
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
B01J 23/63 - Platinum group metals with rare earths or actinides
B01J 37/02 - Impregnation, coating or precipitation
F01N 3/022 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
F01N 3/035 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors
An exhaust gas purification catalyst that purifies exhaust gas discharged from an internal combustion engine, wherein the exhaust gas purification catalyst has: a wall-flow-type base material, in which an introduction-side cell having an end opened on the exhaust-gas-introduction side and a discharge-side cell adjacent to the introduction-side cell and having an end opened on the exhaust-gas-discharge side are divided by a porous partition wall; and a catalyst layer formed in the pores of the partition wall. In the pore diameter distribution, the mode pore diameter of the partition wall where the catalyst layer is formed is 0.9X or less, where X is the mode pore diameter of the partition wall of the wall-flow-type base material.
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
B01J 23/63 - Platinum group metals with rare earths or actinides
B01J 37/02 - Impregnation, coating or precipitation
F01N 3/022 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
F01N 3/035 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors
The present invention provides: a catalyst-coated gasoline particulate filter which has drastically improved PN collection rate in comparison to conventional GPF catalysts; a method for producing this catalyst-coated gasoline particulate filter; and the like. A catalyst-coated gasoline particulate filter 100 according to the present invention is provided with a catalyst layer that purifies an exhaust gas discharged from a gasoline engine. This catalyst-coated gasoline particulate filter 100 is provided with at least: a wall-flow type base material 10 wherein an introduction-side cell 11 that opens in an exhaust gas introduction-side end 11a and a discharge-side cell 12 that opens in an exhaust gas discharge-side end 12a are defined by a porous partition wall 13; and a porous dense collection layer 31 which is composed of a plurality of porous dense parts 31a wherein pores of the partition wall 13 are filled with inorganic fine particles, and which is formed along the wall-flow type base material 10 in the extending direction of the partition wall 13 so as to have a length La of from 0.4L to 0.9L relative to the total length L of the wall-flow type base material 10 when viewed in cross section.
B01D 39/20 - Other self-supporting filtering material of inorganic material, e.g. asbestos paper or metallic filtering material of non-woven wires
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
B01J 23/63 - Platinum group metals with rare earths or actinides
B01J 37/02 - Impregnation, coating or precipitation
F01N 3/025 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust
F01N 3/035 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors
A method for producing an exhaust-gas-purifying catalyst that purifies exhaust gas discharged from a gasoline engine, wherein the method has: a step for preparing a wall-flow-type base material, in which an introduction-side cell that is open on an exhaust-gas-introduction-side end and a discharge-side cell that is adjacent to the introduction-side cell and is open on an exhaust-gas-discharge side end are divided by a porous partition wall; an impregnation step for impregnating the exhaust-gas-introduction side end or exhaust-gas-discharge side end of the wall-flow-type base material with a thixotropic catalyst slurry; an application step for introducing a gas into the wall-flow-type base material from the catalyst-slurry-impregnated end, whereby the catalyst slurry with which the wall-flow-type base material is impregnated is applied to the surfaces of pores in the partition wall; a stopping step for stopping introduction of the gas; and a firing step for firing the applied catalyst slurry to obtain an exhaust-gas-purifying catalyst in which the amount of a catalyst layer applied is 20-110 g/L, the TI value of the catalyst slurry being 10-100.
F01N 3/022 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
F01N 3/035 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors
A catalyst, which can be used even under mild conditions and also has durability so as to enable repeated use while maintaining high activity, and with which a reduction reaction for converting an amide compound into an amine compound can be carried out, is provided by means of an amide compound hydrogenation reaction catalyst characterized in that platinum and vanadium are supported on a carrier and a method for producing an amine compound using the same.
C07C 209/50 - Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of carboxylic acids or esters thereof in presence of ammonia or amines, or by reduction of nitriles, carboxylic acid amides, imines or imino-ethers by reduction of carboxylic acid amides
An exhaust gas purification device is capable of reducing the amount of NOx emissions generated at the time of cold start. An exhaust gas purification device includes a urea injection valve, a metal honeycomb, a temperature sensor, and an SCR catalyst in an exhaust passage. It is possible for an exhaust gas temperature of exhaust gas passing through the metal honeycomb to be increased by the metal honeycomb that is capable of being electrically heated by control executed by a control unit ECU. The exhaust gas temperature is detected by the temperature sensor. Based on a temperature-versus-ammonia adsorption amount profile stored in advance in a storage unit of the control unit ECU, ammonia is pre-adsorbed onto the metal honeycomb and the SCR catalyst, and the metal honeycomb is electrically heated at the time of cold start after the temperature detected by the temperature sensor becomes lower than 150° C.
F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl specially adapted for catalytic conversion
Provided are: a device provided with a storage section in which a solution containing an organic compound can be stored, a catalyst holding section in which a solid catalyst is held, and a microwave irradiation means for irradiating the solution passed through the catalyst holding section with microwaves, the device being characterized in that the solid catalyst is molded and comprises a noble metal supported on a carrier having an average particle diameter of larger than 100 µm; and a hydrogen production method characterized in that a solution that contains an organic compound and is passed through a catalyst holding section holding a solid catalyst that is molded and comprises a noble metal supported on a carrier having an average particle diameter of larger than 100 µm is irradiated with microwaves. The device and the method, which do not require a high-temperature heat source or the like and can perform collection, replacement or the like of the catalyst easily, can be utilized for the production of hydrogen, for example.
C01B 3/26 - Production of hydrogen or of gaseous mixtures containing hydrogen by decomposition of gaseous or liquid organic compounds of hydrocarbons using catalysts
B01J 8/02 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with stationary particles, e.g. in fixed beds
C07C 15/24 - Polycyclic condensed hydrocarbons containing two rings
C07C 45/29 - Preparation of compounds having C=O groups bound only to carbon or hydrogen atomsPreparation of chelates of such compounds by oxidation of hydroxy groups
C07C 47/055 - Preparation by oxidation of methanol using noble metals or compounds thereof as catalysts
C07D 213/133 - Preparation by dehydrogenation of hydrogenated pyridine compounds
C07D 217/02 - Heterocyclic compounds containing isoquinoline or hydrogenated isoquinoline ring systems with only hydrogen atoms or radicals containing only carbon and hydrogen atoms, directly attached to carbon atoms of the nitrogen-containing ringAlkylene-bis-isoquinolines
The purpose of the present invention is to provide an electrode catalyst which can contribute to PEFC cost reduction and which has excellent catalytic activity. This electrode catalyst includes: a hollow carbon carrier having mesopores with a pore diameter of between 2 and 50nm; and catalyst particles which are carried on the carrier. The catalyst particles are carried on both the interior and the exterior of the mesopores of the carrier, and have a core section formed on the carrier as well as a shell section that covers at least a portion of the surface of the core section. The core section contains Pd, and the shell section contains Pt, and when a particle size distribution analysis is performed on the catalyst particles using a three-dimensional reconstructed image obtained via an electron beam tomography measurement utilizing STEM, the ratio of catalyst particles carried inside the mesopores is at least 50%.
An exhaust gas purification catalyst for purifying an exhaust gas discharged from an internal combustion engine, which comprises: a wall flow type base material wherein an introduction-side cell that opens in the exhaust gas introduction-side end and a discharge-side cell that is adjacent to the introduction-side cell and opens in the exhaust gas discharge-side end are defined by means of a porous partition wall; a first catalyst layer which is formed on at least some of the surfaces of pores within the partition wall, and which contains a catalyst metal; and a second catalyst layer which is formed on at least a part of the first catalyst layer, and which contains a catalyst metal that is different from the catalyst metal that is contained in the first catalyst layer.
B01D 39/14 - Other self-supporting filtering material
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
B01J 23/63 - Platinum group metals with rare earths or actinides
B01J 37/02 - Impregnation, coating or precipitation
F01N 3/022 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
F01N 3/035 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors
This method for manufacturing an exhaust gas purification catalyst which purifies exhaust gas discharged from an internal-combustion engine includes a step of preparing a wall-flow type substrate in which an introduction side cell of which an end portion on the exhaust gas introduction side is open, and a discharge side cell which is adjacent to the introduction side cell and of which an end portion on the exhaust gas discharge side is open, are demarcated by a porous separating wall, a coating step of coating a catalyst slurry containing a catalyst metal onto the separating wall, a drying step of introducing a gas into the wall-flow type substrate to dry the coated catalyst slurry, and a baking step of baking the dried catalyst slurry to form a catalyst layer, wherein, in the drying step, the introduction of the gas is performed from either the end portion on the exhaust gas introduction side or the end portion on the exhaust gas discharge side, or is performed alternately from both the end portion on the exhaust gas introduction side and the end portion on the exhaust gas discharge side, thereby causing the dried catalyst slurry to be unevenly distributed in the thickness direction of the separating wall, toward either the introduction side cell side or the discharge side cell side on which the gas was introduced.
F01N 3/022 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
F01N 3/035 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors
The purpose of the present invention is to provide an exhaust gas purifying catalyst which has good exhaust gas purifying performance and in which an increase in pressure loss after the accumulation of ash can be suppressed. This exhaust gas purifying catalyst purifies exhaust gas discharged from an internal combustion engine and has: a wall flow type base material in which an introduction-side cell which has an open exhaust gas introduction-side end, and a discharge-side cell which is adjacent to the introduction-side cell and which has an open exhaust gas discharge side-end are separated by a porous partition wall; and catalyst layers formed at a plurality of locations within the pores of the partition wall and containing at least one type of catalyst metal. The catalyst layers are unevenly distributed on the discharge-side cell side in the thickness direction of the partition wall.
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
B01J 23/63 - Platinum group metals with rare earths or actinides
F01N 3/022 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
F01N 3/035 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors
F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
An exhaust gas purification catalyst for purifying an exhaust gas discharged from an internal combustion engine, which comprises: a wall flow type base material wherein an introduction-side cell that opens in the exhaust gas introduction-side end and a discharge-side cell that is adjacent to the introduction-side cell and opens in the exhaust gas discharge-side end are defined by means of a porous partition wall; and catalyst layers which are formed on some positions within pores of the partition wall, and which contain at least one catalyst metal. With respect to this exhaust gas purification catalyst, the catalyst layers are unevenly located on the introduction-side cell side in the thickness direction of the partition wall.
B01D 39/14 - Other self-supporting filtering material
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
B01J 23/63 - Platinum group metals with rare earths or actinides
F01N 3/022 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
F01N 3/035 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors
F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY (Japan)
N.E. CHEMCAT CORPORATION (Japan)
Inventor
Choi, Junchul
Fukaya, Norihisa
Onozawa, Shunya
Sato, Kazuhiko
Yasuda, Hiroyuki
Mizusaki, Tomoteru
Takagi, Yukio
Abstract
7 are arranged in combination such that the TEP value obtained from infrared spectroscopy shifts toward the high frequency side compared to the TEP value of the ligand of formula (2-1).
Provided are a diesel oxidation catalyst powder and a method for manufacturing the same, and an integrated structure-type exhaust gas purification catalyst and the like, having excellent CO purification performance. This diesel oxidation catalyst powder is characterized by being provided with composite particles containing parent material particles including a ceria-zirconia based oxygen storing and releasing material, and a catalytic active component supported on the parent material particles, wherein the catalytic active component includes palladium having an oxidation number of 1 to 6, and the composite particles are subjected to surface modification using a reoxidant.
F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
84.
Exhaust gas-purifying three-way catalyst and method for producing the same, and exhaust gas-purifying catalytic converter
An exhaust gas-purifying three-way catalyst containing: (i) base material particles of a Nd-solid dissolved zirconia-based complex oxide comprising Nd and Zr as constituent metal elements in the following mass proportions:
in terms of oxides; and (ii) Pd catalyst particles supported on the base material particles, wherein the Nd-solid dissolved zirconia-based complex oxide further contains at least one or more rare earth elements selected from the group consisting of yttrium, scandium, lanthanum, and praseodymium, as a constituent metal element, in an amount of a total of more than 0% by mass to 20% by mass or less in terms of an oxide.
B01J 37/18 - Reducing with gases containing free hydrogen
F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
Provided are: an exhaust purification three-way catalyst, wherein grain growth due to sintering of a catalytically-active component on a carrier upon exposure to high temperature is suppressed, and thereby purification performance is enhanced; a manufacturing method therefor; and an exhaust purification monolithic catalyst and the like obtained using same. The exhaust purification three-way catalyst according to the present invention is characterized by being provided with composite particles that comprise: matrix particles having a pore diameter of 100-650 nm as measured by mercury intrusion technique; and platinum-group-element catalytically-active particles supported on the matrix particles, wherein the catalytically-active particles are contained, in total, in a proportion of 0.001-30 mass%, expressed in terms of metals of platinum group elements, with respect to the total amount of the composite particles.
F01N 3/24 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
Provided are: a three-way catalyst for exhaust gas purification use, which is reduced in the amount of a platinum-group element to be used, can be heated promptly to a catalyst-active temperature, is rarely deteriorated in the performance thereof due to the presence of a catalysis poison contained in exhaust gas when the three-way catalyst is placed immediately below an engine, and has excellent purification performance; and others. A three-way catalyst for exhaust gas purification use, which is provided with at least a catalyst support 11 and a catalyst layer 21, wherein the catalyst layer 21 has a laminate structure having at least a first catalyst layer L1, a second catalyst layer L2 and a third catalyst layer L3 in this order, the first catalyst layer L1 contains first composite catalyst particles in each of which palladium is supported on a first matrix particle, the second catalyst layer L2 contains second composite catalyst particles in each of which rhodium is supported on a second matrix particle, the third catalyst layer L3 contains third composite catalyst particles in each of which palladium is supported on a third matrix particle, and the sum total Wt of the coating amounts of the catalyst layers L1, L2 and L3 (wherein the amount of a platinum-group element contained in each of the catalyst layers is excluded) is 110 to 225 g/L inclusive per volume of the catalyst support 11.
B01J 37/02 - Impregnation, coating or precipitation
F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
87.
INSPECTION SYSTEM AND INSPECTION DEVICE OF HOLLOW COLUMNAR STRUCTURE AGGREGATE
A honeycomb structure prevents catalyst slurry from leaching out when applying a wash coat for making a catalyst supported, ensuring air permeability of the outer portion and in which there is no occurrence of cracking when used as a gasoline particulate filter. The honeycomb structure having: a honeycomb substrate composed of porous partition walls forming a plurality of cells and a porous outer portion; and a resin composition on the outer portion of the honeycomb substrate, wherein the outer portion and the partition walls of the honeycomb substrate are formed of the same material; a porosity of the honeycomb structure is 50% or more; and the resin composition is impregnated into pores of the whole outer portion; and the impregnation depth is equal to the outer portion thickness or a part of the resin composition is impregnated deeper than the outer portion and reaches the cell partition walls.
F01N 3/035 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
B01D 46/24 - Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
89.
Slurry composition for catalyst and method for producing same, method for producing catalyst using this slurry composition for catalyst, and method for producing Cu-containing zeolite
2O·zCuO (wherein T is a quaternary ammonium cation, and x, y and z are numbers that satisfy 10≤x≤40, 0.1≤y<2.0, and 0.1≤z<2.0, respectively) in terms of molar ratio based on an oxide; coating at least one side of a support with this slurry composition; and heat-treating at 350° C. or higher.
B01J 29/72 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of types characterised by their specific structure not provided for in groups containing iron group metals, noble metals or copper
B01J 37/00 - Processes, in general, for preparing catalystsProcesses, in general, for activation of catalysts
B01J 37/10 - Heat treatment in the presence of water, e.g. steam
F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl specially adapted for catalytic conversion
C01B 39/48 - Other types characterised by their X-ray diffraction pattern and their defined composition using at least one organic template directing agent
90.
RARE EARTH ELEMENT FRAMEWORK SUBSTITUTED ZEOLITE, METHOD FOR PRODUCING SAME, AND NOX ADSORBENT, SELECTIVE REDUCTION CATALYST AND AUTOMOBILE EXHAUST GAS CATALYST, EACH USING SAME
Provided are: a novel rare earth element framework substituted zeolite which has enhanced NOx adsorption; a method for producing this rare earth element framework substituted zeolite; and a NOx adsorbent, a catalyst for automobile exhaust gases and the like, each of which uses this rare earth element framework substituted zeolite. A rare earth element framework substituted zeolite which is characterized by containing at least zeolite, and at least one or more rare earth elements selected from the group consisting of Ce, La, Nd and Pr, and which is also characterized in that: the content ratio of the rare earth elements is 1-15% by mass in total relative to the total mass; and some of the Al atoms and/or the Si atoms constituting the framework of the zeolite are substituted by the rare earth elements.
C01B 39/06 - Preparation of isomorphous zeolites characterised by measures to replace the aluminium or silicon atoms in the lattice framework by atoms of other elements
B01J 20/30 - Processes for preparing, regenerating or reactivating
B01J 29/70 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of types characterised by their specific structure not provided for in groups
F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
B01J 23/46 - Ruthenium, rhodium, osmium or iridium
C07C 209/72 - Preparation of compounds containing amino groups bound to a carbon skeleton from amines, by reactions not involving amino groups, e.g. reduction of unsaturated amines, aromatisation, or substitution of the carbon skeleton by reduction of unsaturated amines by reduction of six-membered aromatic rings
C07C 211/35 - Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of rings other than six-membered aromatic rings of a saturated carbon skeleton containing only non-condensed rings
B01J 23/46 - Ruthenium, rhodium, osmium or iridium
C07C 209/72 - Preparation of compounds containing amino groups bound to a carbon skeleton from amines, by reactions not involving amino groups, e.g. reduction of unsaturated amines, aromatisation, or substitution of the carbon skeleton by reduction of unsaturated amines by reduction of six-membered aromatic rings
C07C 211/35 - Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of rings other than six-membered aromatic rings of a saturated carbon skeleton containing only non-condensed rings
The present invention provides a technique that is capable of easily adjusting the loading positions of gold and palladium in a VAM catalyst by means of a method for producing a palladium-gold loaded catalyst for vinyl acetate synthesis, which is characterized by comprising: a step for obtaining a palladium-gold immobilized spherical porous molded carrier by impregnating a spherical porous molded carrier, which is formed from an inorganic oxide, with a mixed aqueous solution that contains a palladium precursor serving as a catalytically active species and a gold precursor serving as a promoter component, and by subsequently impregnating the spherical porous molded carrier with an alkaline aqueous solution, thereby water-insolubilizing the palladium precursor and the gold precursor within the spherical porous molded carrier; and a subsequent step for adjusting the moisture content of the palladium-gold immobilized spherical porous molded carrier.
B01J 37/02 - Impregnation, coating or precipitation
B01J 23/58 - Platinum group metals with alkali- or alkaline earth metals or beryllium
C07C 67/055 - Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides onto unsaturated carbon-to-carbon bonds with oxidation in the presence of platinum group metals or their compounds
Provided is a catalyst for debenzylation reactions, which enables the achievement of a higher yield of a target product (a debenzylated product) in comparison to conventional Pd-supporting catalysts in a debenzylation reaction wherein a benzyl group is separated from an organic compound that has the benzyl group as a protecting group. A catalyst for debenzylation reactions according to the present invention is used for a debenzylation reaction wherein a benzyl group is separated from an organic compound that has the benzyl group; and this catalyst for debenzylation reactions contains a carrier, and Pd particles and Nb oxide particles, which are supported by the carrier.
C07C 209/62 - Preparation of compounds containing amino groups bound to a carbon skeleton by cleaving carbon-to-nitrogen, sulfur-to-nitrogen, or phosphorus-to-nitrogen bonds, e.g. hydrolysis of amides, N-dealkylation of amines or quaternary ammonium compounds
C07C 211/07 - Monoamines containing one, two or three alkyl groups, each having the same number of carbon atoms in excess of three
C07C 211/27 - Compounds containing amino groups bound to a carbon skeleton having amino groups bound to acyclic carbon atoms of an unsaturated carbon skeleton containing at least one six-membered aromatic ring having amino groups linked to the six-membered aromatic ring by saturated carbon chains
C07D 295/033 - Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms containing only hydrogen and carbon atoms in addition to the ring hetero elements containing only one hetero ring with the ring nitrogen atoms directly attached to carbocyclic rings
CHA ALUMINOSILICATE AND PRODUCTION METHOD THEREFOR, AND EXHAUST GAS PURIFICATION CATALYST, EXHAUST GAS PURIFICATION APPARATUS AND EXHAUST GAS PURIFICATION METHOD USING SAME
Provided are: a CHA aluminosilicate that exhibits an excellent thermal durability and can maintain a relatively high adsorption capacity and catalyst performance even in high-temperature environments or after exposure to high temperatures; and a method for producing this CHA aluminosilicate. The method according to the present invention for producing the CHA aluminosilicate is characterized by at least comprising: a step for preparing a mixture that contains a Si-Al element source containing at least an aluminosilicate having a silica/alumina ratio (SiO2/Al2O3) of at least 2 and less than 12, and that also contains a Si element source (but excluding Si element sources that correspond to the Si-Al element source), an alkali metal source, an organic structure directing agent, and water; and a step for subjecting this mixture to a hydrothermal treatment.
C01B 39/48 - Other types characterised by their X-ray diffraction pattern and their defined composition using at least one organic template directing agent
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
96.
CATALYST FOR ELECTRODE, COMPOSITION FOR FORMING GAS DIFFUSION ELECTRODE, GAS DIFFUSION ELECTRODE, FILM–ELECTRODE ASSEMBLY, AND FUEL CELL STACK
Provided is a catalyst for electrodes (core shell catalyst) having excellent catalytic activity and capable of contributing to reduced PEFC costs. This catalyst for electrodes has catalyst particles supported by a carrier. These catalyst particles have a core including Pd (0 valence) and a shell including Pt (0 valence). The carbon ratio Rc (atom%) of the carrier, the Pd (0 valence) ratio RPd (atom%), and the Pt (0 valence) ratio RPt (atom%), in an analysis area in the vicinity of the surface measured by X-ray photoelectron spectroscopy (XPS), simultaneously fulfill two conditions: formula (1) 2.15 ≤ [100 × RPd/(RPd + Rc)] ≤ 5.00; and formula (2) 0.55 ≤ [RPt/RPd ] ≤ 1.00.
Provided is a catalyst for electrodes (core shell catalyst) having excellent catalytic activity and capable of contributing to PEFC cost reduction. This catalyst for electrodes has catalyst particles supported by a carrier. These catalyst particles fulfill conditions indicated by: formula (1) 0.70 ≤ [IPt/SPd] ≤ 2.00; formula (2) [IPt/SPd] = (CRPt × D/AWPt)/{(CRPd × D/AWPd) × XPd}; and formula (3) XPd = 1.071/r. Here, SPd and IPt are parameters calculated when spherically approximating core particles formed upon the carrier, for a precursor for the electrode catalyst comprising the carrier and these core particles. SPd is the number (mol) of atoms for Pd exposed on the surface of the core particles and is calculated by using the average value for crystallite size of core particles found from the peak in a Pd (111) plane obtained by XRD measurement of precursor particles. IPt is the number (mol) of atoms of Pt (0 valence), calculated when assuming that the total volume of Pt (0 valence) included in the shell obtained by ICP analysis is coated in a single atomic layer on the surface of the core particles.
The present invention provides a catalyst that can be used under mild conditions, that has durability allowing for repeated use while maintaining high activity, and with which a reductive reaction for converting an amide compound into an amine compound can be carried out, by means of an amide compound hydrogenation reaction catalyst characterized in that platinum and vanadium are supported on a carrier and a method for producing an amine compound using the same.
C07C 209/50 - Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of carboxylic acids or esters thereof in presence of ammonia or amines, or by reduction of nitriles, carboxylic acid amides, imines or imino-ethers by reduction of carboxylic acid amides
C07C 211/27 - Compounds containing amino groups bound to a carbon skeleton having amino groups bound to acyclic carbon atoms of an unsaturated carbon skeleton containing at least one six-membered aromatic ring having amino groups linked to the six-membered aromatic ring by saturated carbon chains
C07C 211/52 - Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to only one six-membered aromatic ring the carbon skeleton being further substituted by halogen atoms or by nitro or nitroso groups
The present invention provides a filter for exhaust gas cleaning that can efficiently burn and eliminate microparticle components collected in partitions and a method for manufacturing the same. This filter (CSF) for exhaust gas cleaning is characterized: by at least including a honeycomb base material having porous partitions for collecting soot and other microparticle components (PM) in exhaust gas, and a catalyst, which is a catalyst supported on the honeycomb base material, for burning and eliminating the microparticle components collected in the partitions in the honeycomb base material and deposited in a cell; and in that the catalyst is carried intensively in shallow parts from the cell wall surfaces on the exhaust gas inlet side of the honeycomb base material with 65% or more of the total mass of the catalyst being present in a depth region from the cell wall surface in the honeycomb base material to 2/10a based on wall thickness a for the partitions.
F01N 3/035 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors
100.
ELECTRODE CATALYST, COMPOSITION FOR FORMING GAS DIFFUSION ELECTRODE, GAS DIFFUSION ELECTRODE, MEMBRANE ELECTRODE ASSEMBLY, AND FUEL CELL STACK
Provided is an electrode catalyst which has high durability compared with conventional Pt/C catalysts and which contributes to cost reduction. The electrode catalyst of the present invention comprises a carrier and catalyst particles carried on the carrier. The catalyst particles comprise a core portion, a first shell portion formed on the core portion, and a second shell portion formed on the first shell portion. The core portion includes WC and a W carbide including WC1-x(0 < x < 1). The first shell portion includes Pd (0 valence). The second shell portion includes Pt (0 valence). Core particles as a precursor of the core portion satisfy the condition of an expression (1): 0.03 ≤ {I2/(I1 + I2)} ≤ 0.75, where I1 and I2 are respectively the intensity of a peak attributed to WC and the intensity of a peak attributed to WC1-x(0 < x < 1), as determined by XRD measurement of the core particles.
patents
