2232233-containing sol solution after the autoclave treatment becomes a sol state. The sol solution is suitable for forming a porous alumina film having excellent adhesiveness to various substrate surfaces, high heat resistance and a high specific surface area.
A gas separation method is provided. The method includes using a gas separation apparatus comprising a selective permeable membrane and a first and second treatment chambers separated by the selective permeable membrane. A mixed gas containing a gas to be separated is supplied into (or generated within) the first treatment chamber, and the gas to be separated is separated from the mixed gas by having the gas to be separated permeate from the first/second treatment chamber side of the selective permeable membrane, which has a stacked laminated structure of a hydrophilic porous membrane, a separation-functional layer, and a first protective membrane, and the separation-functional layer includes a layer of hydrophilic polymer containing water, and the first treatment chamber is provided on a hydrophilic porous membrane side of the selective permeable membrane and the second treatment chamber is provided on the first protective membrane side of the selective permeable membrane.
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor characterised by their properties
22222 facilitated transport membranes. Preferably, the organic solvent is selected from an alcohol-bases organic solvent and an aprotic organic solvent. More preferably, the polymeric compound is selected from synthetic polymer components belonging to a first candidate group including polyvinyl alcohol, vinyl acetate, polypropylene glycol, polyacrylic acid and polyethylene glycol, natural polymer components belonging to a second candidate group including pectin, chitosan, agarose, starch paste, xanthan gum, gellan gum and alginic acid, and semisynthetic polymer components belonging to a third candidate group including carboxymethyl cellulose and hydroxypropyl cellulose.
B01D 69/00 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor
B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor characterised by their properties
B01D 71/40 - Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
B01D 71/74 - Natural macromolecular material or derivatives thereof
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
Porous alumina having excellent heat resistance and coking resistance is provided. The porous alumina can include silica and barium oxide added to aluminum oxide, wherein a ratio of SiO2 addition amount to a total mass of aluminum oxide and SiO2 addition amount is defined as SiO2 addition ratio (mass %), a ratio of BaO addition amount to a total mass of aluminum oxide and SiO2 addition amount is defined as BaO addition ratio (mass %), when the SiO2 addition ratio is within a range of 3 mass % or less and the BaO addition ratio is within a range of 14 mass % or less, the silica and the barium oxide are respectively added to the aluminum oxide so that a specific surface area of the porous alumina measured by a measuring method after heat treatment is equal to or larger than a reference specific surface area of reference porous alumina.
22222222 separation membrane 3 is discharged to the outside from the second treatment chamber 6. In each separation membrane module 2 other than the most downstream separation membrane module 2, water vapor is added to the nonpermeable gas EG discharged from the first treatment chamber 5, and then that nonpermeable gas EG is supplied as mixed gas FG to the first treatment chamber 5 of the downstream separation membrane module 2.
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
Provided is a gas separation method that enables suppression of decrease in gas permeation performance of a hydrophilic porous membrane while maintaining excellent membrane production performance of the hydrophilic porous membrane. By use of a gas separation device 1 configured by being provided with a selectively permeable membrane 10 having a separation function layer 12 through which gas G0 to be separated selectively permeates, and a first treatment chamber 21 and a second treatment chamber 22 separated by the selectively permeable membrane, mixed gas FG containing the gas G0 to be separated is supplied to the first treatment chamber or is generated in the first treatment chamber, the gas G0 to be separated permeates from the first treatment chamber 21 side of the selectively permeable membrane 10 to the second treatment chamber 22 side thereof, and the gas G0 to be separated is separated from the mixed gas FG. The selectively permeable membrane 10 has a laminated structure obtained by laminating in order a hydrophilic porous membrane 11, the separation function layer 12, and a first protection membrane 13 of the hydrophobic porous membrane. The separation function layer 12 is configured by being provided with a gel layer of a hydrophilic polymer containing moisture. The first treatment chamber 21 is provided to the hydrophilic porous membrane 11 side of the selectively permeable membrane 10. The second treatment chamber 22 is provided to the first protection membrane 13 side of the selectively permeable membrane 10.
B01D 69/00 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
B01J 23/78 - 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 alkali- or alkaline earth metals or beryllium
A Ni-based steam reforming catalyst having excellent carbon deposition resistance and sintering resistance is provided. The steam reforming catalyst is constituted by including nickel as a catalytically active metal, lanthanum as a first co-catalyst component, manganese as a second co-catalyst component, and a carrier containing γ-alumina as a main component.
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
10.
CO2 FACILITATED TRANSPORT MEMBRANE, PRODUCTION METHOD THEREFOR, AND CO2 SEPARATION METHOD AND DEVICE
222222 carrier and a particulate moisture absorption agent within a hydrophilic polymer gel membrane. More preferably, the moisture absorption agent is formed from porous particles and is present within the gel membrane in a dispersed manner. More preferably, the gel membrane is a hydrogel. More preferably, the gel membrane is supported by a hydrophilic porous membrane.
B01D 69/00 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
A biogas combustion system that obtains a stable output and saves energy is realized. A combustion system comprises a separation portion 14 that removes carbon dioxide from a treatment target gas containing a mixture gas containing methane as a main component and containing carbon dioxide to obtain methane gas of a high purity in which at least a content of carbon dioxide has been reduced, and a combustion portion 15 that combusts the methane gas. The separation portion 14 includes a first treatment chamber 11 and a second treatment chamber 12 separated from each other by a separation membrane 13 therebetween. The separation membrane 13 selectively allows the carbon dioxide in the treatment target gas supplied to the first treatment chamber 11 to pass therethrough to the second treatment chamber 12 to obtain a first separation gas having a higher methane purity than the treatment target gas in the first treatment chamber 11 and a second separation gas containing the carbon dioxide in the treatment target gas in the second treatment chamber 12.
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
B01D 69/00 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor
F23K 5/00 - Feeding or distributing other fuel to combustion apparatus
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor characterised by their properties
A power generation system comprises a fuel gas supply device 13 for controlling methane concentration or carbon dioxide concentration in a mixed gas MG containing methane and carbon dioxide within a setting range for the concentration in the fuel gas of a gas engine 11, and for supplying the mixed gas MG to the gas engine 11 as the fuel gas, and a gas concentration sensor 14 for measuring the carbon dioxide concentration or the methane concentration of the mixed gas MG. The fuel gas supply device 13 comprises a carbon dioxide removal device 16 for removing carbon dioxide in the mixed gas MG, and an operating condition control device 17 for controlling an operating condition that affects an increase or decrease of a carbon dioxide removal rate of the carbon dioxide removal device 16, and the operating condition control device 17 controls the operating condition of the carbon dioxide removal device 16 based on the measurement result of the gas concentration sensor 14, thereby controlling the concentration of methane and carbon dioxide in the mixed gas.
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
B01D 69/00 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor
F02B 43/10 - Engines or plants characterised by use of other specific gases, e.g. acetylene, oxyhydrogen
F02D 19/02 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
F02D 29/06 - Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving electric generators
H01M 8/06 - Combination of fuel cells with means for production of reactants or for treatment of residues
[Problem] To provide an Ni-based steam reforming catalyst having excellent carbon deposition resistance properties and sintering resistance properties. [Solution] This steam reforming catalyst is constituted by the inclusion of nickel as a catalytically active metal, lanthanum as a first co-catalyst component, manganese as a second co-catalyst component, and a carrier containing γ-alumina as the main component.
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
2222222222222222222 permselective membrane, wherein the hydrophilic polymer contains an amino acid and a deprotonating agent capable of preventing the protonation of an amino group in the amino acid.
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
Disclosed is a gas separation device that is provided with: a separation membrane module wherein at least one gas separation membrane element is provided in a housing; a case for blocking external air; and a heat source unit for adjusting the temperature of a heat medium with which the inside of the case is filled. The case houses therein at least two separation membrane modules.
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
B01D 65/00 - Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
B01D 69/00 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor
Provided is a method for separating, from a raw gas containing a specific gas, the specific gas using a gas separation membrane module. The gas separation membrane module includes a housing and a gas separation membrane element enclosed in the housing. The gas separation membrane element includes a gas separation membrane including a hydrophilic resin composition layer for selectively allowing for permeation of the specific gas. The method includes the steps of: increasing pressure in an interior of the gas separation membrane module; increasing a temperature in the interior of the gas separation membrane module; and feeding a raw gas to the interior of the gas separation membrane module in that order.
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
B01D 71/82 - Macromolecular material not specifically provided for in a single one of groups characterised by the presence of specified groups, e.g. introduced by chemical after-treatment
This electric power generation system is provided with: a fuel gas supply device 13 which controls the methane concentration and the carbon dioxide concentration, in a mixed gas MG containing methane and carbon dioxide, so as to fall within set ranges of the respective concentrations in a fuel gas for a gas engine 11, and then supplies said mixed gas to the gas engine 11 as a fuel gas; and a gas concentration sensor 14 which measures the carbon dioxide concentration or the methane concentration in the mixed gas MG. The fuel gas supply device 13 is provide with: a carbon dioxide removal device 16 for removing carbon dioxide in the mixed gas MG; and an operating condition control device 17 for controlling operating conditions that influence the decrease or increase in the rate of the carbon dioxide removal by the carbon dioxide removal device 16, wherein the operating condition control device 17 controls said operating conditions of the carbon dioxide removal device 16 on the basis of a measuring result of the gas concentration sensor 14, thereby controlling the concentrations of methane and carbon dioxide in the mixed gas.
F02D 19/02 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
B01D 69/00 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor
C10L 3/10 - Working-up natural gas or synthetic natural gas
F02B 43/10 - Engines or plants characterised by use of other specific gases, e.g. acetylene, oxyhydrogen
F02D 29/06 - Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving electric generators
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
2 hydration catalyst at least has catalytic activity at a temperature of 100° C. or higher, has a melting point of 200° C. or higher, or is soluble in water.
B01D 71/76 - Macromolecular material not specifically provided for in a single one of groups
C01B 3/58 - Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by contacting with solidsRegeneration of used solids including a catalytic reaction
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
B01J 20/04 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
A carbon dioxide separation method including the steps of: feeding a mixed gas that contains at least carbon dioxide and water vapor to a carbon dioxide separation membrane that contains a hydrophilic resin and a carbon dioxide carrier; separating, from the mixed gas, a permeation gas that contains the carbon dioxide by use of the carbon dioxide separation membrane; adjusting temperature of gas which contacts the carbon dioxide separation membrane so that a temperature difference between the mixed gas and the permeation gas is not lower than 0° C. and not higher than 20° C.; and adjusting pressure of the permeation gas, the pressure of the permeation gas and water vapor partial pressure in the mixed gas satisfying the following formula (1): 2.5 kPaA<(pressure of permeation gas)<(water vapor partial pressure in mixed gas) . . . (1).
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
B01D 69/00 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor
H01M 8/0612 - Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material
H01M 8/0668 - Removal of carbon monoxide or carbon dioxide
H01M 8/0662 - Treatment of gaseous reactants or gaseous residues, e.g. cleaning
21.
Carbon dioxide gas separation membrane, method for manufacturing same, and carbon dioxide gas separation membrane module
2 gas separation membrane including: a first layer (A) containing at least one alkali metal compound selected from the group consisting of an alkali metal carbonate, an alkali metal bicarbonate and an alkali metal hydroxide, and a first resin in which a polymer having a carboxyl group has been crosslinked; a second layer (B) containing at least one of the alkali metal compounds, and a second resin having a structural unit derived from a vinyl ester of a fatty acid; and a hydrophobic porous membrane (C).
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
The purpose of the present invention is to implement a biogas combustion system that can obtain a stable output and has low energy consumption. Provided is a combustion system provided with a separation unit 14 for eliminating carbon dioxide from a gas to be processed, which comprises a mixed gas that includes methane as a primary component and carbon dioxide, so as to obtain high purity methane gas wherein at least the amount of carbon dioxide is reduced, and a combustion unit 15 for combustion of methane gas, wherein the separation unit 14 has a first processing chamber 11 and a second processing chamber 12 partitioned by a separation membrane 13, and the separation membrane 13 selectively allows carbon dioxide in the gas to be processed that is supplied to the first processing chamber 11 to permeate through to the second processing chamber 12 so as to obtain a first separated gas in the first processing chamber 11 that has higher purity methane than the gas to be processed and a second separated gas in the second processing chamber 12 that includes the carbon dioxide in the gas to be processed.
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
B01D 69/00 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor
F23K 5/00 - Feeding or distributing other fuel to combustion apparatus
2 gas separation membrane containing: at least one compound selected from the group consisting of an alkali metal carbonate, an alkali metal bicarbonate, and an alkali metal hydroxide; a crosslinked polymer in which a polymer having a carboxyl group has been crosslinked; and a non-crosslinked polymer obtained by polymerization of one or more monomers selected from the group consisting of vinyl acetate, acrylic acid, methacrylic acid, and a derivative thereof.
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
B01D 63/00 - Apparatus in general for separation processes using semi-permeable membranes
B01D 69/00 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor
Provided is a steam reforming system that can effectively suppress heat loss and can achieve a hydrogen gasification efficiency of 80% or more or preferably 90% or more. The invention is provided with a reformer, in which a plurality of reforming tubes 18 are disposed so as to be connected in parallel in a reforming furnace 17, steam generators 15, 16, which generate steam for a reforming reaction, a CO converter 22, and a combustor 19, which supplies heat into the reforming furnace 17, wherein: the reforming tubes 18 are configured to comprise an outer tube 26, of which both ends are closed, and an inner tube 27, which is accommodated in the outer tube 26 and of which one end is closed and the other end is open, said tubes being coaxial, wherein an inlet is provided at one end side of the outer tube 26, an outlet is provided at one end side of the inner tube 27, an outer channel 30 formed between the outer tube 26 and the inner tube 27 and an inner channel 31 formed inside the inner tube 27 communicate at the other end side of the outer tube 26, and a reforming catalyst is filled into at least the outer channel 30; and the combustor 19 is provided at the other end side in the reforming furnace 17.
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
C01B 3/56 - Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by contacting with solidsRegeneration of used solids
H01M 8/0612 - Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material
25.
GAS RECOVERY DEVICE, GAS RECOVERY METHOD, AND SEMICONDUCTOR WASHING SYSTEM
Provided is an energy-efficient gas recovery device with which an inert gas can be recovered in high yields and with higher purity. A gas recovery device for separating at least an inert gas from a first gas to be treated that contains the inert gas and carbon dioxide gas, said device being provided with a first separation unit 13 having a first treatment chamber 11 and a second treatment chamber 12 partitioned by a first separation membrane 14, the first gas to be treated being supplied to the first treatment chamber 11, whereby the first gas for treatment is separated into a first separated gas inside the first treatment chamber and a second separated gas inside the second treatment chamber, the first separated gas having the inert gas at a higher purity and the carbon dioxide gas at a lower purity than the gas to be treated.
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
B01D 69/00 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor
H01L 21/304 - Mechanical treatment, e.g. grinding, polishing, cutting
26.
METHOD FOR SEPARATING CARBON DIOXIDE AND APPARATUS FOR SEPARATING CARBON DIOXIDE
Provided is a method for separating carbon dioxide, the method having: a gas mixture supplying step for supplying a gas mixture that contains at least carbon dioxide and water vapor to a carbon dioxide separation membrane that contains a hydrophilic resin and a carbon dioxide carrier; a carbon dioxide separation step for separating a permeant gas that contains carbon dioxide from the gas mixture by using the carbon dioxide separation membrane; a temperature adjustment step for adjusting the temperature of the gas in contact with the carbon dioxide separation membrane so that the difference in temperature between the gas mixture and the permeant gas is 0-20°C; and a pressure adjustment step for adjusting the pressure of the permeant gas, the partial pressure of the water vapor in the gas mixture and the pressure of the permeant gas satisfying formula (1). 2.5 kPaA ឬ (pressure of permeant gas) ឬ (partial pressure of water vapor in mixed gas) ... (1)
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
B01D 69/00 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor
2 hydration catalyst at least has catalytic activity at a temperature of 100° C. or higher, has a melting point of 200° C. or higher, or is soluble in water.
C01B 3/50 - Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification
C01B 3/58 - Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by contacting with solidsRegeneration of used solids including a catalytic reaction
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
B01D 67/00 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
B01D 71/76 - Macromolecular material not specifically provided for in a single one of groups
B01J 20/04 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
Provided are a CO2 gas separation membrane, a method for manufacturing the same, and a carbon dioxide gas separation module including the same, the CO2 gas separation membrane comprising: (A) a first layer including at least one alkali metal compound selected from the group consisting of alkali metal carbonate, alkali metal bicarbonate, and alkali metal hydroxide, and a first resin in which polymers having carboxyl groups are crosslinked; (B) a second layer including at least one of the alkali metal compounds, and a second resin having a structural unit derived from fatty acid vinyl ester; and (C) a hydrophobic porous membrane.
B01D 71/40 - Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
B01D 69/00 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
C08F 230/00 - Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal
B01D 67/00 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
The present invention provides a composition for a CO2 gas separation membrane comprising: at least one compound selected from the group consisting of alkali metal carbonates, alkali metal bicarbonates, and alkali metal hydroxides; a crosslinked polymer in which a polymer having carboxyl groups has been crosslinked; and a non-crosslinked polymer obtained by polymerization of one or more monomers selected from the group consisting of vinyl acetate, acrylic acid, methacrylic acid, and derivatives thereof.
B01D 71/40 - Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
B01D 63/00 - Apparatus in general for separation processes using semi-permeable membranes
B01D 69/00 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor
Institute of National Colleges of Technology, Japan (Japan)
Inventor
Hasegawa, Akira
Okada, Osamu
Ito, Chihiro
Abstract
Provided is a production method for a porous alumina material, comprising the steps of: mixing an alkoxysilane solution that comprises an alkoxysilane, a mixed solvent comprising water and an alcohol, and an inorganic acid, with an aluminum solution comprising an aluminum compound and water, to prepare a mixed solution in which the aluminum compound and the alkoxysilane are dissolved in the mixed solvent; co-precipitating aluminum hydroxide with a silicon compound in the mixed solution, to form a precipitate; and baking the precipitate to form a porous alumina material comprising aluminum oxide and silicon oxide.
A system for producing an oxygenate, comprising: a desulfurization apparatus for contacting a raw material gas comprising hydrogen and carbon monoxide with a desulfurizing agent comprising copper; and a synthesis apparatus for contacting the raw material gas treated by the desulfurizing apparatus with an oxygenate-synthesis catalyst comprising rhodium.
C07C 29/158 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases characterised by the catalyst used containing iron group metals, platinum group metals, or compounds thereof containing platinum group metals or compounds thereof containing rhodium or compounds thereof
B01J 19/24 - Stationary reactors without moving elements inside
C07C 45/49 - Preparation of compounds having C=O groups bound only to carbon or hydrogen atomsPreparation of chelates of such compounds by reaction with carbon monoxide
C01B 3/58 - Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by contacting with solidsRegeneration of used solids including a catalytic reaction
B01J 21/06 - Silicon, titanium, zirconium or hafniumOxides or hydroxides thereof
B01J 23/60 - Platinum group metals with zinc, cadmium or mercury
B01J 23/80 - 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 zinc, cadmium or mercury
B01J 35/10 - Solids characterised by their surface properties or porosity
B01J 37/02 - Impregnation, coating or precipitation
C07C 29/141 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen-containing functional group of C=O containing groups, e.g. —COOH of a —CHO group with hydrogen or hydrogen-containing gases
2 hydration catalyst at least has catalytic activity at a temperature of 100° C. or higher, has a melting point of 200° C. or higher, or is soluble in water.
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
C01B 3/58 - Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by contacting with solidsRegeneration of used solids including a catalytic reaction
B01D 67/00 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
B01D 71/76 - Macromolecular material not specifically provided for in a single one of groups
B01J 20/04 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY (Japan)
Inventor
Matsuyama Hideto
Kasahara Shohei
Kamio Eiji
Abstract
Disclosed is a CO2 permselective membrane comprising an ionic liquid that includes a cation and an anion, and a porous membrane that is impregnated with the ionic liquid, wherein the cation includes at least one type of cation selected from the group consisting of ammoniums represented by formula (1) and phosphoniums represented by formula (2). (The Rs in formulas (1) and (2) are as defined in the Description.)
B01D 69/00 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
C07C 211/63 - Quaternary ammonium compounds having quaternised nitrogen atoms bound to acyclic carbon atoms
C07C 229/08 - Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated having only one amino and one carboxyl group bound to the carbon skeleton the nitrogen atom of the amino group being further bound to hydrogen atoms
35.
2 from mixed gas, and membrane separation equipment
National University Corporation Kobe University (Japan)
Inventor
Okada, Osamu
Hanai, Nobuaki
Kamio, Eiji
Kasahara, Shohei
Matsuyama, Hideto
Abstract
2 permselective membrane 1 having an amino acid ionic liquid and a porous membrane impregnated with the amino acid ionic liquid, wherein the amino acid ionic liquid contains a certain range of water.
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
B01D 71/00 - Semi-permeable membranes for separation processes or apparatus characterised by the materialManufacturing processes specially adapted therefor
In a gas separation apparatus that separates carbon dioxide and water vapor from a first mixture gas containing at least carbon dioxide, nitrogen and water vapor, the energy utilization efficiency thereof is improved. The gas separation apparatus is constructed to include a first separation membrane 33 and a second separation membrane 34 that are made of different materials. When the first mixture gas is supplied, the first separation membrane 33 separates a second mixture gas containing carbon dioxide and water vapor that permeate through the first separation membrane by allowing carbon dioxide and water vapor to permeate selectively. When the second mixture gas is supplied, the second separation membrane 34 separates water vapor that permeates through the second separation membrane 34 by allowing water vapor to permeate selectively.
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
C01B 3/50 - Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification
H01M 8/06 - Combination of fuel cells with means for production of reactants or for treatment of residues
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
H01M 8/04 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
C01B 3/48 - 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 followed by reaction of water vapour with carbon monoxide
37.
FACILITATED CO2 TRANSPORT MEMBRANE, METHOD FOR MANUFACTURING SAME, RESIN COMPOSITION TO BE USED IN METHOD FOR MANUFACTURING SAME, CO2 SEPARATION MODULE, CO2 SEPARATION METHOD AND CO2 SEPARATION DEVICE
Provided is a facilitated CO2 transport membrane that has improved CO2 permeance and improved CO2-selective permeability. The facilitated CO2 transport membrane is provided with a membrane having separation function, said membrane comprising a CO2 carrier and a CO2 hydration reaction catalyst that are contained in a hydrophilic polymer gel membrane, wherein the hydrophilic polymer is a copolymer containing a first structural unit derived from cesium acrylate or rubidium acrylate and a second structural unit derived from vinyl alcohol. More preferably, the CO2 hydration reaction catalyst exhibits a catalytic activity at a temperature of 100°C or higher.
B01D 71/40 - Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
B01D 69/00 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor
Provided is a facilitated CO2 transport membrane having improved CO2 permeance and CO2/H2 selectivity. The facilitated CO2 transport membrane is equipped with a separation-functional membrane that comprises a hydrophilic polymer gel membrane and a CO2 carrier and a CO2 hydration reaction catalyst both contained in the hydrophilic polymer gel membrane. More preferably, the CO2 hydration reaction catalyst has at least a catalytic activity at a temperature equal to or higher than 100˚C, or has a melting point of 200˚C or higher, or is soluble in water.
B01D 69/00 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
B01D 67/00 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
B01D 71/44 - Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of groups
C01B 3/58 - Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by contacting with solidsRegeneration of used solids including a catalytic reaction
An oxygenated product production system provided with: a desulfurization apparatus in which a raw material gas comprising hydrogen and carbon monoxide is to be brought into contact with a desulfurizing agent comprising copper; and a synthesis apparatus in which the raw material gas that has been treated in the desulfurization apparatus is to be brought into contact with a rhodium-containing synthesis catalyst for the oxygenated product.
C07C 29/158 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases characterised by the catalyst used containing iron group metals, platinum group metals, or compounds thereof containing platinum group metals or compounds thereof containing rhodium or compounds thereof
C07C 45/49 - Preparation of compounds having C=O groups bound only to carbon or hydrogen atomsPreparation of chelates of such compounds by reaction with carbon monoxide
Institute of National Colleges of Technology, Japan (Japan)
Inventor
Hasegawa, Akira
Okada, Osamu
Ito, Chihiro
Abstract
Provided is a production method for a porous alumina material, comprising the steps of: mixing an alkoxysilane solution that comprises an alkoxysilane, a mixed solvent comprising water and an alcohol, and an inorganic acid, with an aluminum solution comprising an aluminum compound and water, to prepare a mixed solution in which the aluminum compound and the alkoxysilane are dissolved in the mixed solvent; co-precipitating aluminum hydroxide with a silicon compound in the mixed solution, to form a precipitate; and baking the precipitate to form a porous alumina material comprising aluminum oxide and silicon oxide.
In a gas separation apparatus that separates carbon dioxide and water vapor from a first mixture gas containing a predetermined major component gas, carbon dioxide, and water vapor, the energy utilization efficiency thereof is improved. Also, by utilizing the function of this gas separation apparatus, a membrane reactor and a hydrogen production apparatus exhibiting high energy utilization efficiency are provided. The gas separation apparatus is constructed to include a first separation membrane 33 and a second separation membrane 34 that are made of different materials. When the first mixture gas is supplied at a temperature of 100° C. or higher, the first separation membrane 33 separates a second mixture gas containing carbon dioxide and water vapor that permeate through the first separation membrane by allowing carbon dioxide and water vapor to permeate selectively. When the second mixture gas is supplied, the second separation membrane 34 separates water vapor that permeates through the second separation membrane 34 by allowing water vapor to permeate selectively.
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
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
H01M 8/06 - Combination of fuel cells with means for production of reactants or for treatment of residues
C01B 3/48 - 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 followed by reaction of water vapour with carbon monoxide
C01B 3/50 - Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification
NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY (Japan)
Inventor
Okada Osamu
Hanai Nobuaki
Kamio Eiji
Kasahara Shohei
Matsuyama Hideto
Abstract
A selectively CO2-permeable membrane which comprises both an amino acid ionic liquid and a porous membrane impregnated with the amino acid ionic liquid, wherein the amino acid ionic liquid has a water content falling within a specific range.
B01D 69/00 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
A steam permselective membrane containing a crosslinked hydrophilic polymer is provided. The steam permselective membrane may further contain at least one alkali metal compound selected from the group consisting of a cesium compound, a potassium compound and a rubidium compound.
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
2-facilitated transport membrane is formed such that a gel layer 1 obtained by adding cesium carbonate to a polyvinyl alcohol-polyacrylic acid copolymer gel membrane is supported by a hydrophilic porous membrane 2. More preferably, a gel layer supported by a hydrophilic porous membrane 2 is coated with hydrophilic porous membranes 3 and 4.
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
Provided are a CO shift conversion device and a CO shift conversion method which improve the CO conversion rate without increasing the amount of use of a shift conversion catalyst. A CO shift conversion device is provided with a CO shift converter (10) which has a catalyst layer (5) produced from a CO shift conversion catalyst and performs CO shift conversion treatment on gas flowing therein, and a CO2 removal unit (51) which removes CO2 contained in introduced gas, and the catalyst layer (5) is configured by the CO shift conversion catalyst having the property of lowering the CO conversion rate as the concentration of CO2 contained in the gas flowing therein increases. The concentration of CO2 contained in gas to be treated (G0) is first lowered in the CO2 removal unit (51), and thereafter the gas to be treated is supplied to the CO shift converter (10) and subjected to the CO shift conversion treatment.
C01B 3/16 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents by reaction of water vapour with carbon monoxide using catalysts
C01B 3/34 - 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
46.
FACILITATED TRANSPORT MEMBRANE MANUFACTURING METHOD
Provided is a facilitated transport membrane manufacturing method that can easily form a separating function layer inside a tubular porous support. A method for manufacturing a facilitated transport membrane, which is obtained from a porous support (3) and a separating function layer (4) and which selectively allows permeation of a specific gas, wherein: the inner wall surface of a columnar porous support (3) having a hollow portion is coated with a membrane-producing solution to which a hydrophilic polymer and a carrier that reacts selectively with a specific gas have been added; and after the inner wall surface of the porous support (3) has been pressurized, the membrane-producing solution loaded on the inner wall surface is dried to form a separating function layer (4) on the inner wall surface of the porous support (3).
B01D 69/00 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor
C01B 3/56 - Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by contacting with solidsRegeneration of used solids
[Problem] To stably provide a CO2-facilitated transport membrane that can be applied to a CO2 permeable membrane reactor and that has excellent carbon dioxide permeability and CO2/H2 selectivity. [Solution] Provided is a CO2-facilitated transport membrane in which a gel layer (1) composed of a hydrogel film is carried on a hydrophilic porous membrane (2). More preferably, the gel layer (1) carried on the hydrophilic porous member (2) is covered and supported by hydrophobic porous membranes (3, 4). The gel film includes a deprotonating agent including an alkali metal element together with glycerin. The deprotonating agent is preferably a carbonate or a hydroxide of an alkali metal element, and more preferably, the alkali metal element is potassium, cesium, or rubidium.
B01D 69/00 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor
2-facilitated transport membrane is formed such that a gel layer 1 obtained by adding cesium carbonate to a polyvinyl alcohol-polyacrylic acid copolymer gel membrane is supported by a hydrophilic porous membrane 2. More preferably, a gel layer supported by a hydrophilic porous membrane 2 is coated with hydrophilic porous membranes 3 and 4.
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
B05D 3/10 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
49.
POROUS ALUMINA MATERIAL, PROCESS FOR PRODUCING SAME, AND CATALYST
Institute of National Colleges of Technology, Japan (Japan)
Inventor
Hasegawa Akira
Okada Osamu
Ito Chihiro
Abstract
A process for producing a porous alumina material which comprises: a step in which an alkoxysilane solution comprising an alkoxysilane, a mixed solvent comprising water and an alcohol, and an inorganic acid is mixed with an aluminum solution comprising an aluminum compound and water to produce a mixed solution in which the aluminum compound and the alkoxysilane have dissolved in the resultant mixed solvent; a step in which aluminum hydroxide and a silicon compound are coprecipitated in the mixed solution to form a precipitate; and a step in which the precipitate is burned to form a porous alumina material comprising aluminum oxide and silicon oxide.
The purpose of the present invention is: to improve the energy utilization efficiency in a gas separation device for separating carbon dioxide and steam from a first mixed gas comprising a specific main component gas, carbon dioxide and steam; and to provide a membrane reactor and a hydrogen production device each having a high energy utilization efficiency, each of which is produced utilizing the function of the gas separation device. The gas separation device comprises a first separation membrane (33) and a second separation membrane (34) which are made from different materials. When the first mixed gas is supplied to the first separation membrane (33) at a temperature of 100°C or higher, carbon dioxide and steam are passed through the first separation membrane (33) selectively, thereby separating a second mixed gas comprising carbon dioxide and steam that have been passed through the first separation membrane. When the second mixed gas is supplied to the second separation membrane (34), steam is passed through the second separation membrane (34) selectively, thereby separating steam that has passed through the second separation membrane (34).
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
C01B 3/16 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents by reaction of water vapour with carbon monoxide using catalysts
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
C01B 3/56 - Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by contacting with solidsRegeneration of used solids
H01M 8/06 - Combination of fuel cells with means for production of reactants or for treatment of residues
51.
STEAM PERMSELECTIVE MEMBRANE, AND METHOD USING SAME FOR SEPARATING STEAM FROM MIXED GAS
Disclosed is a steam permselective membrane containing a cross-linked hydrophilic polymer. The steam permselective membrane may further contain at least one alkali metal compound selected from the group consisting of a cesium compound, a potassium compound, and a rubidium compound.
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
Disclosed is a carbon monoxide shift catalyst layer which is longitudinally divided into at least two sections and which is provided with a first catalyst in the upstream side and a second catalyst in the downstream side. The first catalyst exhibits a characteristic that, at a given carbon monoxide concentration of a feed reactant gas and a given reaction temperature, the carbon monoxide conversion ratio lowers with the increase of carbon dioxide concentration of the feed reactant gas. In the carbon monoxide shift catalyst layer, used is such a combination of first and second catalysts that the degree of decrease of carbon monoxide conversion ratio as observed in the second catalyst is lower than the degree of decrease of carbon monoxide conversion ratio as observed in the first catalyst, each degree of decrease of carbon monoxide conversion ratio being relative to the increase of carbon dioxide concentration of a feed reactant gas. Whereby, the concentration-based carbon monoxide conversion ratio of a carbon monoxide shift conversion apparatus can be enhanced without increasing the amount of a shift converter catalyst used.
C01B 3/48 - 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 followed by reaction of water vapour with carbon monoxide
H01M 8/06 - Combination of fuel cells with means for production of reactants or for treatment of residues
53.
2-facilitated transport membrane and method for producing the same
2-facilitated transport membrane is formed such that a gel layer 1 obtained by adding cesium carbonate to a polyvinyl alcohol-polyacrylic acid copolymer gel membrane is supported by a hydrophilic porous membrane 2. More preferably, a gel layer supported by a hydrophilic porous membrane 2 is coated with hydrophilic porous membranes 3 and 4.
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
Disclosed is a stabilized CO2-facilitated transport membrane of excellent carbon dioxide permeability and CO2/H2 selectivity, which can be used in CO2-permeable membrane reactors. Disclosed is a CO2-facilitated transport membrane in which a gel layer (1), in which cesium carbonate has been added to a polyvinyl alcohol-polyacrylic acid copolymer gel membrane, is supported by a hydrophilic porous membrane (2). More preferably, a gel layer (1) supported by a hydrophilic porous membrane (2) is coated with hydrophobic porous membranes (3, 4).
B01D 69/00 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor
A method of removing CO2 from a gas is provided, comprising bringing a CO2-facilitated transport membrane, which has CO2/H2 selectivity, into contact with a gas. The CO2-facilitated transport membrane is formed such that a gel layer is supported by a hydrophilic porous membrane, and the gel layer is obtained by adding at least one of cesium carbonate, cesium bicarbonate and cesium hydroxide, or at least one of rubidium carbonate, rubidium bicarbonate and rubidium hydroxide, to a gel membrane. Preferably, the gel membrane is a polyvinyl alcohol-polyacrylic acid copolymer gel membrane.
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
Disclosed is a carbon monoxide shift catalyst layer which is longitudinally divided into at least two sections and which is provided with a first catalyst in the upstream side and a second catalyst in the downstream side. The first catalyst exhibits a characteristic that, at a given carbon monoxide concentration of a feed reactant gas and a given reaction temperature, the carbon monoxide conversion ratio lowers with the increase of carbon dioxide concentration of the feed reactant gas. In the carbon monoxide shift catalyst layer, used is such a combination of first and second catalysts that the degree of decrease of carbon monoxide conversion ratio as observed in the second catalyst is lower than the degree of decrease of carbon monoxide conversion ratio as observed in the first catalyst, each degree of decrease of carbon monoxide conversion ratio being relative to the increase of carbon dioxide concentration of a feed reactant gas. Whereby, the concentration-based carbon monoxide conversion ratio of a carbon monoxide shift conversion apparatus can be enhanced without increasing the amount of a shift converter catalyst used.
C01B 3/16 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents by reaction of water vapour with carbon monoxide using catalysts
C01B 3/48 - 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 followed by reaction of water vapour with carbon monoxide
H01M 8/0612 - Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material
57.
CO SHIFT CONVERSION DEVICE AND SHIFT CONVERSION METHOD
The present invention provides a CO shift conversion device and a CO shift conversion method which improves CO conversion rate without increasing usage of a shift conversion catalyst. A CO shift conversion device includes: a CO shift converter 10 having a catalyst layer 5 composed of a CO shift conversion catalyst and performing CO shift conversion process on a gas flowing inside; and a CO2 remover 51 removing CO2 contained in a gas introduced. The catalyst layer 5 is composed of a CO shift conversion catalyst having a property that a CO conversion rate decreases with an increase of the concentration of CO2 contained in a gas flowing inside. The concentration of CO2 contained in a gas G0 to be processed is lowered by the CO2 remover 51 and, after that, the resultant gas is supplied to the CO shift converter 10 where it is subjected to the CO shift conversion process.
C01B 3/16 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents by reaction of water vapour with carbon monoxide using catalysts
C01B 3/34 - 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
58.
GAS SEPARATION APPARATUS, MEMBRANE REACTOR, AND HYDROGEN PRODUCTION APPARATUS
The purpose of the present invention is: to improve the energy utilization efficiency in a gas separation device for separating carbon dioxide and steam from a first mixed gas comprising a specific main component gas, carbon dioxide and steam; and to provide a membrane reactor and a hydrogen production device each having a high energy utilization efficiency, each of which is produced utilizing the function of the gas separation device. The gas separation device comprises a first separation membrane (33) and a second separation membrane (34) which are made from different materials. When the first mixed gas is supplied to the first separation membrane (33) at a temperature of 100°C or higher, carbon dioxide and steam are passed through the first separation membrane (33) selectively, thereby separating a second mixed gas comprising carbon dioxide and steam that have been passed through the first separation membrane. When the second mixed gas is supplied to the second separation membrane (34), steam is passed through the second separation membrane (34) selectively, thereby separating steam that has passed through the second separation membrane (34).
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
C01B 3/16 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents by reaction of water vapour with carbon monoxide using catalysts
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
C01B 3/48 - 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 followed by reaction of water vapour with carbon monoxide
C01B 3/50 - Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification
59.
FACILITATED CO2 TRANSPORT MEMBRANE AND METHOD FOR PRODUCING SAME, AND METHOD AND APPARATUS FOR SEPARATING CO2
Provided is a facilitated CO2 transport membrane having improved CO2 permeance and CO2/H2 selectivity. The facilitated CO2 transport membrane is equipped with a separation-functional membrane that comprises a hydrophilic polymer gel membrane and a CO2 carrier and a CO2 hydration reaction catalyst both contained in the hydrophilic polymer gel membrane. More preferably, the CO2 hydration reaction catalyst has at least a catalytic activity at a temperature equal to or higher than 100°C, or has a melting point of 200°C or higher, or is soluble in water.
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
B01D 67/00 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
B01D 69/00 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor
C01B 3/56 - Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by contacting with solidsRegeneration of used solids
C01B 3/58 - Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by contacting with solidsRegeneration of used solids including a catalytic reaction
60.
GAS SEPARATION APPARATUS, MEMBRANE REACTOR, AND HYDROGEN PRODUCTION APPARATUS
In a gas separation apparatus that separates carbon dioxide and water vapor from a first mixture gas containing a predetermined major component gas, carbon dioxide, and water vapor, the energy utilization efficiency thereof is improved. Also, by utilizing the function of this gas separation apparatus, a membrane reactor and a hydrogen production apparatus exhibiting high energy utilization efficiency are provided. The gas separation apparatus is constructed to include a first separation membrane 33 and a second separation membrane 34 that are made of different materials. When the first mixture gas is supplied at a temperature of 100 C or higher, the first separation membrane 33 separates a second mixture gas containing carbon dioxide and water vapor that permeate through the first separation membrane by allowing carbon dioxide and water vapor to permeate selectively. When the second mixture gas is supplied, the second separation membrane 34 separates water vapor that permeates through the second separation membrane 34 by allowing water vapor to permeate selectively.
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
patents
