The present disclosure relates generally to processes for separating an effluent in an acetic acid production unit. Accordingly, one aspect of the disclosure provides a process including transferring at least a portion of a carbonylation reaction effluent to the bottom section of a tank, evaporating at least a portion of the effluent to form a vapour fraction, spraying a spray liquid onto a porous demister surface of a demister section of the tank, collecting and returning a liquid fraction of the effluent from at least one chimney tray in the tank to a fractionation section or the bottom section of the tank, and withdrawing from a top section of the tank at least a portion of the vapour fraction, the vapour fraction comprising acetic acid, the vapour fraction having been passed from the bottom section through the fractionation section, and then through one or more chimneys of the at least one chimney tray, and then through the spray section, and then through the porous demister surface of the demister section.
B01D 3/20 - Bubble capsRisers for vapourDischarge pipes for liquid
C07C 51/12 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
C07C 51/44 - SeparationPurificationStabilisationUse of additives by change of the physical state, e.g. crystallisation by distillation
A process for the production of methyl acetate by carbonylating dimethyl ether with carbon monoxide at a temperature of 250 to 350 °C in the presence of a zeolite catalyst and hydrogen such that the molar ratio of hydrogen to carbon monoxide is at least 1, and one or more compounds containing a hydroxyl functional group and in the absence of any added methyl acetate.
A process for the production of acetic acid which process comprises the steps of. (a) introducing methanol and/or a reactive derivative thereof and carbon monoxide into a first reaction zone containing a liquid reaction composition comprising a carbonylation catalyst, optionally a carbonylation catalyst promoter, methyl iodide, methyl acetate, acetic acid and water; (b) withdrawing at least a portion of the liquid reaction composition from the first reaction zone; (c) passing at least a portion of the withdrawn liquid reaction composition to a second reaction zone, wherein a gas feed comprising carbon monoxide is added to the liquid reaction composition withdrawn from the first reaction zone at one or more points upstream of the second reaction zone, one or more points within the second reaction zone, or a combination of one or more points upstream of the second reaction zone and one or more points within the second reaction zone; and (d) passing at least a portion of the liquid reaction composition from the second reaction zone into a flash separation zone to form: a vapour fraction, which comprises acetic acid, methyl iodide, methyl acetate and low pressure off-gas; and, a liquid fraction, which comprises carbonylation catalyst and optional carbonylation catalyst promoter; wherein the flow rate in kg of gas feed comprising carbon monoxide which is added to the second reaction zone per tonne of liquid reaction composition being passed to the flash separation zone (kg/te), is in the range of from 0.5F G to 1.2FG, wherein FG is defined according to equation 1: (1) FG=(0.296086962xtr )+(0.369636xRR )+(0.295878701xGP 0,8134 )-23.3448 wherein, tr is the residence time (seconds) of the liquid reaction composition within the second reaction zone which is calculated using equation 2: (2) tr =V2/Ff wherein, V2 is the volume of the second reaction zone (m3) and F f is the volumetric flow rate of liquid reaction composition to the flash separation zone (m 3 /s), R R is the reaction rate of the liquid reaction composition passed to the second reaction zone at the temperature at which it is withdrawn from the first reaction zone (mol/litre/hour), and Gp is the purity of the gas feed comprising carbon monoxide which is added to the second reaction zone expressed as the mass fraction of carbon monoxide in the gas feed.
C07C 51/12 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
4.
CARBONYLATION PROCESS FOR THE PRODUCTION OF METHYL ACETATE
A process for the production of methyl acetate by carbonylating at a temperature of 250 to 350°C, in the presence of a zeolite catalyst, a feed comprising dimethyl ether, a gas comprising carbon monoxide and hydrogen at a molar ratio of hydrogen to carbon monoxide of at least 1, methyl acetate and one or more compounds containing a hydroxyl functional group.
A carbonylation process in the presence of a pretreated zeolite catalyst which comprises the sequential steps (i) pretreating the catalyst and (ii) carbonylating dimethyl ether with a carbon monoxide-containing gas to produce methyl acetate in which the catalyst pretreatment step (i) comprises a step (a) contacting the catalyst with a first treatment mixture comprising water vapour; and a step (b) contacting the treated catalyst of step (a) with a second treatment mixture comprising an inert gas and at least one of dimethyl ether and methanol.
B01J 29/18 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the mordenite type
B01J 29/50 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the erionite or offretite type, e.g. zeolite T
B01J 29/65 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the ferrierite type, e.g. types ZSM-21, ZSM-35 or ZSM-38
B01J 29/70 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of types characterised by their specific structure not provided for in groups
C07C 67/37 - Preparation of carboxylic acid esters by reaction with carbon monoxide or formates by reaction of ethers with carbon monoxide
B01J 38/06 - Gas or vapour treatingTreating by using liquids vaporisable upon contacting spent catalyst using steam
B01J 38/04 - Gas or vapour treatingTreating by using liquids vaporisable upon contacting spent catalyst
A method of operating a heavy ends column in an acetic acid production unit, said production unit comprising at least a reaction section, a light ends recovery section comprising a light ends distillation column, and a heavy ends column, wherein a stream comprising acetic acid and propionic acid obtained from the light ends recovery section is fed to the heavy ends column through a feed inlet positioned at an intermediate point in the heavy ends column, a product stream comprising essentially acetic acid is withdrawn from the heavy ends column through a sidedraw product outlet position above the feed inlet, and a product stream comprising the propionic acid is withdrawn from the heavy ends column through a heavy product outlet positioned below the feed inlet, wherein the heavy ends column is operated under conditions such that the pressure in the heavy ends column above the feed inlet is lower than the pressure of the stream comprising acetic acid and propionic acid that is fed to the heavy ends column, and wherein the head pressure of the heavy ends column is below 1.0 bara, the number of theoretical separation stages between the feed inlet and the sidedraw product outlet is at least 5, preferably at least 7, more preferably at least 10, and the pressure drop in the part of the heavy ends column between the feed inlet and the sidedraw product outlet is at most 10 mbar per theoretical separation stage.
C07C 51/12 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
Process for preparing methyl acetate by the carbonylation of dimethyl ether with carbon monoxide in the presence of hydrogen and a zeolite catalyst. In a first step, the carbonylation is conducted with a carbon monoxide to hydrogen molar ratio of at least 1 and, in a second and subsequent step, the carbonylation is conducted with a hydrogen to carbon monoxide molar ratio of greater than 1.
A process for removing acetaldehyde from a mixture of methyl acetate, dimethyl ether and acetaldehyde comprising distilling mixtures derived from carbonylating dimethyl ether in the presence of a zeolite catalyst to generate an overhead stream depleted in acetaldehyde as compared to the feed mixture, a base stream depleted in acetaldehyde as compared to the feed mixture and a sidedraw stream enriched in acetaldehyde as compared to the feed mixture and withdrawing from the column the sidedraw stream enriched in acetaldehyde at a point above the feed point of the feed mixture to the column. Purified mixtures may be utilised as feedstock to processes for the co-production of acetic acid and dimethyl ether.
A process for the co-production of acetic acid and dimethyl ether by dehydration- hydrolysis of a feed mixture of methanol and methyl acetate in the presence of at least one catalyst to generate a crude reaction product comprising acetic acid and dimethyl ether wherein the feed to said co-production process comprising methanol and methyl acetate comprises dimethyl ether in a total amount of 25 mol% or less based on the total feed.
In processes for the hydrolysis of a methyl acetate with at least one of water and methanol in the presence of at least one Brønsted acid catalyst to produce acetic acid the performance of the catalyst is improved by using a methyl acetate feed in which the total amount of acetaldehyde and 1,1 dimethoxyethane impurities is maintained at 100 ppm wt or less calculated as mass equivalents of acetaldehyde.
A method for scrubbing off-gas generated in production units for the manufacture of acetic acid and an apparatus therefor. The method comprises supplying off-gas and acetic acid solvent at a tick-over flow rate to an acetic acid scrubbing unit, withdrawing off-gas from the scrubbing unit, supplying withdrawn off-gas to a methanol scrubbing unit, scrubbing the off-gas therein with methanol solvent and withdrawing scrubbed off-gas from the methanol scrubbing unit.
C07C 51/48 - SeparationPurificationStabilisationUse of additives by liquid-liquid treatment
B01D 53/78 - Liquid phase processes with gas-liquid contact
C07C 51/12 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
12.
PROCESS FOR THE CO-PRODUCTION OF ACETIC ACID AND DIMETHYL ETHER
A process for the co-production of acetic acid and dimethyl ether with reduced formic acid content by distilling a mixture comprising dimethyl ether, methanol and methyl formate; separating methyl formate from the mixture to recover dimethyl ether and methanol; and catalytically reacting the methanol and methyl acetate to produce a reaction product of acetic acid and dimethyl ether.
A process for the production of dimethyl ether from gaseous mixtures of carbon monoxide, hydrogen and methyl acetate contaminant comprising contacting a gaseous mixture of carbon monoxide, hydrogen and methyl acetate contaminant in a first scrubbing zone with a first portion of methanol to recover a scrubbed gaseous mixture depleted in methyl acetate and a first used methanol stream containing methyl acetate; contacting the scrubbed gaseous mixture in a second scrubbing zone with a second portion of methanol to recover a scrubbed gaseous mixture further depleted in methyl acetate and a second used methanol stream containing no methyl acetate or a reduced amount of methyl acetate compared to the first used methanol stream; dehydrating at least a portion of the second used methanol stream in the presence of at least one catalyst to produce a crude dehydration reaction product comprising dimethyl ether, unconverted methanol and water; recovering from the crude dehydration product a water stream comprising mainly water and 3 mol% or less acetic acid and a dimethyl ether stream.
A catalytic dehydration-hydrolysis process for the co-production of acetic acid and dimethyl ether from a mixture of methanol and methyl acetate and water in which the amount of water fed to the process is controlled by the steps of dehydrating a methanol feed to provide a crude product comprising dimethyl ether, unconverted methanol and water; recovering therefrom a stream comprising dimethyl ether, water and methanol and a water stream; separating dimethyl ether from the dimethyl-ether containing stream to produce a methanol stream comprising methanol and water; and supplying to the dehydration-hydrolysis process at least part of the methanol stream and methyl acetate.
A process for the co-production of acetic acid and dimethyl ether by contacting methyl acetate and methanol in the presence of catalysts comprising crystalline zeolites having a FER framework type which crystallites have a dimension in the c-axis of about 500 nanometres (nm) or less and a ratio of the c-axis : b-axis dimension of 5:1 or greater and a method for preparation of the zeolites utilising piperazines.
A process for the production of methyl acetate by carbonylating dimethyl ether with carbon monoxide in the presence of hydrogen and a zeolite catalyst wherein the process is carried out with a molar ratio of hydrogen to carbon monoxide of at least 1 and the catalyst has been calcined at a temperature of from about 375 °C to about 475° C.
A catalyst and process for the production of methyl acetate by contacting dimethyl ether and carbon monoxide in the presence of a catalyst which is a zeolite of micropore volume of 0.01 ml/g or less.
B01J 29/65 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the ferrierite type, e.g. types ZSM-21, ZSM-35 or ZSM-38
B01J 29/70 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of types characterised by their specific structure not provided for in groups
B01J 37/00 - Processes, in general, for preparing catalystsProcesses, in general, for activation of catalysts
B01J 35/10 - Solids characterised by their surface properties or porosity
A process for preparing methyl acetate by the carbonylation of dimethyl ether with carbon monoxide in the presence of hydrogen and a zeolite catalyst wherein, in a first step the carbonylation is conducted with a carbon monoxide to hydrogen molar ratio of at least 1 and in a second and subsequent step, the carbonylation is conducted with a hydrogen to carbon monoxide molar ratio of greater than 1.
A process for the carbonylation of dimethyl ether with carbon monoxide in the presence of a catalyst to produce methyl acetate reaction product which carbonylation process is conducted in the presence of hydrogen at a molar ratio of hydrogen to carbon monoxide of at least 1 and the catalyst is a zeolite prepared from a synthesis mixture comprising at least one organic structure directing agent.
B01J 29/65 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the ferrierite type, e.g. types ZSM-21, ZSM-35 or ZSM-38
B01J 29/70 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of types characterised by their specific structure not provided for in groups
A continuous process for the co-production of acetic acid and acetic anhydride by (a) contacting carbon monoxide with a liquid reaction composition comprising methyl acetate, dimethyl ether or a mixture thereof, a Group VIII metal catalyst, methyl iodide, acetic acid, acetic anhydride, water in a concentration of 0.1 wt% or less, (b) withdrawing liquid reaction composition from the reaction zone and introducing at least a portion of the withdrawn liquid reaction composition into a flash separation zone, and (c) removing from the flash separation zone a vapour fraction comprising acetic anhydride, acetic acid and methyl iodide and a liquid fraction comprising acetic anhydride, and Group VIII metal catalyst in which at least one of the liquid reaction composition and the withdrawn liquid reaction composition introduced into the flash separation zone comprises at least one metal salt selected from salts of Group IA and Group IIA metals and the molar ratio of acetic acid to acetic anhydride in the vapour fraction removed from the flash separation zone is maintained at greater than or equal to 1, preferably greater than or equal to 1.2.
C07C 51/12 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
Crystalline zeolites having a FER framework type wherein the crystallites have a dimension in the c-axis of about 500 nanometres (nm) or less, a method for their preparation and a process for the co-production of acetic acid and dimethyl ether comprising the step of contacting methyl acetate and methanol in the presence of catalysts comprising the crystalline zeolites.
A process for treating a zeolite catalyst for the carbonylation of dimethyl ether to produce methyl acetate in which the catalyst is contacted with a treatment gas comprising water vapour in an amount of at least 1 mol% and at a temperature below which dealumination of the zeolite structure occurs.
An integrated process for the production of methyl acetate and methanol by carbonylating dimethyl ether with synthesis gas, recovering a methyl acetate stream and an unreacted synthesis gas stream comprising methyl acetate, scrubbing the synthesis gas to remove methyl acetate and passing the scrubbed synthesis gas for methanol synthesis.
C07C 29/151 - 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
An integrated process for the production of methyl acetate and methanol by the carbonylating dimethyl ether with synthesis gas, recovering methyl acetate and unreacted synthesis gas and wherein the recovered synthesis gas is utilized as the sole fresh synthesis gas for methanol synthesis.
C07C 67/37 - Preparation of carboxylic acid esters by reaction with carbon monoxide or formates by reaction of ethers with carbon monoxide
C07C 69/14 - Acetic acid esters of monohydroxylic compounds
C07C 29/151 - 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
An integrated process for the production of methyl acetate and methanol by carbonylating dimethyl ether with synthesis gas, recovering methyl acetate and unreacted synthesis gas and supplying unreacted synthesis gas and fresh synthesis gas for methanol synthesis.
C07C 29/151 - 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
An integrated process for the production of acetic acid by carbonylating dimethyl ether with synthesis gas to form methyl acetate and unreacted synthesis gas, utilising the unreacted synthesis gas to produce methanol, dehydrating and hydrolysing a mixture of methyl acetate and methanol to produce acetic acid and dimethyl ether and recovering acetic acid therefrom.
A process for the co-production of acetic acid and dimethyl ether products from a mixture of methanol and methyl acetate by contacting the mixture at a temperature from 200 to 260 °C, with a catalyst composition comprising a zeolite possessing a 2-dimensional channel system comprising at least one channel having a 10-membered ring and a silica : alumina molar ratio of at least 22 : 1.
A process for the production of acetic acid and dimethyl ether by contacting a mixture of methanol and methyl acetate with a zeolite catalyst wherein the zeolite has a 2-dimensional channel system comprising at least one channel having a 10-membered ring and having at least 5% of its cation exchange capacity occupied by one or more alkali metal cations.
A catalyst and/or precatalyst for olefin oligomerization comprising one or more coordination complexes having one or more central palladium metal atoms. Each palladium atom is bonded to four ligand donor atoms. Two of the donor atoms are group 16 elements and two of the donor atoms are group 15 elements. Also provided are neutral or cationic coordination complex dimers, so that the two palladium atoms are both bonded to one or two donor atoms from group 16, and each palladium atom is bonded to two donor atoms from group 15. In some instances, each of the two group 16 donor atoms are oxygen and each of the four group 15 donor atoms are nitrogen.
C08F 4/80 - MetalsMetal hydridesMetallo-organic compoundsUse thereof as catalyst precursors selected from metals not provided for in group selected from iron group metals or platinum group metals
C08F 4/70 - Iron group metals, platinum group metals, or compounds thereof
A catalyst and/or precatalyst for olefin oligomerization comprising one or more coordination complexes having one or more central palladium metal atoms. Each palladium atom is bonded to four ligand donor atoms. Two of the donor atoms are group 16 elements and two of the donor atoms are group 15 elements. Also provided are neutral or cationic coordination complex dimers, so that the two palladium atoms are both bonded to one or two donor atoms from group 16, and each palladium atom is bonded to two donor atoms from group 15. In some instances, each of the two group 16 donor atoms are oxygen and each of the four group 15 donor atoms are nitrogen.
A process for the production of methyl acetate and/or acetic acid by contacting a carbon monoxide-containing gas and methanol and/or reactive derivatives thereof with a mordenite loaded with copper and silver loaded by ion-exchange and subsequently regenerating the catalyst.
C07C 51/12 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
C07C 67/37 - Preparation of carboxylic acid esters by reaction with carbon monoxide or formates by reaction of ethers with carbon monoxide
Process for the carbonylation of a carbonylatable reactant selected from at least one of dimethyl ether and methanol, by carbonylating the carbonylatable reactant with carbon monoxide in the presence of a catalyst to produce a carbonylation product selected from at least one of methyl acetate and acetic acid. The catalyst is formed by compositing a mordenite loaded with at least one of silver and copper, with an inorganic oxide binder.
C07C 67/36 - Preparation of carboxylic acid esters by reaction with carbon monoxide or formates
C07C 51/12 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
C07C 67/37 - Preparation of carboxylic acid esters by reaction with carbon monoxide or formates by reaction of ethers with carbon monoxide
33.
PROCESS FOR PRODUCING ACETIC ACID AND DIMETHYL ETHER USING A ZEOLITE CATALYST
A process for the production of acetic acid and dimethyl ether by contacting methanol and methyl acetate with a catalyst composition at a temperature in the range 140 to 250 0C wherein the catalyst composition contains a zeolite having a 2-dimensional channel system comprising at least one channel which has a 10-membered ring.
Process for the in-situ regeneration of a zeolite catalyst in a carbonylation process for the production of at least one of methyl acetate and acetic acid. The process is carried out by (a) contacting a carbonylatable reactant selected from methanol, dimethyl ether and dimethyl carbonate and carbon monoxide in a reactor with a zeolite catalyst and recovering a product stream containing at least one of methyl acetate and acetic acid from the reactor, (b) ceasing contact of the catalyst with the carbonylatable reactant, (c) regenerating the catalyst with a regenerating gas selected from hydrogen or a mixture of hydrogen and carbon monoxide at a temperature in the range 250 to 600 C, and (d) terminating the hydrogen regenerating step and resuming contact of the catalyst with the carbonylatable reactant and carbon monoxide.
B01J 38/10 - Gas or vapour treatingTreating by using liquids vaporisable upon contacting spent catalyst using elemental hydrogen
C07C 51/12 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
A process for the production of acetic acid and/or methyl acetate by carbonylating methanol and/or reactive derivatives thereof with carbon monoxide in the presence of a catalyst which is a mordenite which has been treated with an aqueous basic solution containing at least one of aluminate ions and gallate ions and has a silica : X2O3 molar ratio (wherein X is Al and/or Ga) of at least 12 : 1.
B01J 29/18 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the mordenite type
C07C 51/12 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
C07C 67/37 - Preparation of carboxylic acid esters by reaction with carbon monoxide or formates by reaction of ethers with carbon monoxide
A process for the production of acetic acid and/or methyl acetate by the carbonylation of methanol, methyl acetate and/or dimethyl ether with carbon monoxide in the presence of a desilicated mordenite catalyst.
C07C 51/12 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
C07C 67/37 - Preparation of carboxylic acid esters by reaction with carbon monoxide or formates by reaction of ethers with carbon monoxide
B01J 29/18 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the mordenite type
A process for the production of at least one carbonylation product selected from acetic acid and methyl acetate by carbonylating at least one carbonylatable reactant selected from methanol and reactive derivatives thereof with carbon monoxide in the presence of a catalyst which is a mordenite which has been treated with an aqueous ammonium hydroxide solution and has a silica : alumina molar ratio of at least 10 : 1.
B01J 29/18 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the mordenite type
C07C 51/12 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
C07C 67/37 - Preparation of carboxylic acid esters by reaction with carbon monoxide or formates by reaction of ethers with carbon monoxide
38.
PROCESS FOR REMOVING ACETONE FROM A STREAM COMPRISING ACETONE, METHYL ACETATE AND METHYL IODIDE
The present invention relates to a separation process for removing acetone from a mixture comprising acetone, methyl acetate and methyl iodide, said process comprising the steps of: (a) introducing said stream comprising acetone, methyl acetate and methyl iodide into a first distillation zone; (b) introducing acetic acid into said first distillation zone, either by addition of acetic acid to said stream comprising acetone, methyl acetate and methyl iodide or by introduction of acetic acid directly to the first distillation zone at one or more points at or above the point of introduction of said stream comprising acetone, methyl acetate and methyl iodide into the first distillation zone in step (a), or a combination of both; (c) removing from the first distillation zone an overhead stream comprising methyl iodide and a bottoms stream comprising acetone, methyl acetate, acetic acid, and a reduced amount of methyl iodide; (d) introducing into a second distillation zone the bottoms stream from step (c); (e) removing from the second distillation zone an overhead stream comprising methyl acetate and methyl iodide and a bottoms stream comprising acetone, methyl acetate and acetic acid; (f) introducing the bottoms stream from step (e) into a third distillation zone; and (g) removing from the third distillation zone an overhead stream comprising methyl acetate and acetone and a bottoms stream comprising methyl acetate and acetic acid.
C07C 45/83 - SeparationPurificationStabilisationUse of additives by change in the physical state, e.g. crystallisation by distillation by extractive distillation
A process for the carbonylation of dimethyl ether and/or methanol with carbon monoxide to produce methyl acetate and/or acetic acid in the presence of a catalyst formed by compositing a mordenite loaded with silver and/or copper, with an inorganic oxide binder.
B01J 29/20 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the mordenite type containing iron group metals, noble metals or copper
C07C 51/12 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
C07C 67/37 - Preparation of carboxylic acid esters by reaction with carbon monoxide or formates by reaction of ethers with carbon monoxide
A process for the production of methyl acetate by reacting dimethyl ether with carbon monoxide into a carbonylation reactor containing a mordenite catalyst in the presence of added methyl acetate and/or acetic acid.
A process for the preparation of methyl acetate and/or acetic acid by carbonylating dimethyl ether and/or methanol with carbon monoxide in the presence of a catalyst, which catalyst is a H-mordenite bound with a mesoporous binder selected from silicas, aluminas, silica-aluminas, magnesium silicates and magnesium aluminum silicates.
B01J 29/18 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the mordenite type
C07C 51/12 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
C07C 67/37 - Preparation of carboxylic acid esters by reaction with carbon monoxide or formates by reaction of ethers with carbon monoxide
Preparation of selectively dealuminated zeolites of structure type MOR by loading the zeolite with a univalent metal followed by treatment with steam. The dealuminated zeolites subsequently converted to the hydrogen form and/or loaded with metals are suitable for use as catalysts in carbonylation processes to produce acetic acid and/or methyl acetate.
Process for converting a hydrocarbon feedstock into alcohol(s) wherein the hydrocarbons are first converted into syngas, which is converted into alcohols, by converting hydrocarbon feedstock in a steam reformer into stream A′ of carbon oxide(s), hydrogen and water, feeding stream A′ with hydrocarbon and oxygen feedstocks into an auto-thermal reformer to produce stream A, converting stream A in an oxygenate synthesis reactor into stream B containing methanol, ethanol, propanol(s), H2, C1-C3 alkanes, CO, CO2 and water, separating stream B, into stream C containing CO, C1-C3 alkanes, H2 and methanol, stream D containing CO2, recovering stream B containing the ethanol, propanol(s) and water, treating stream C to separate into a stream comprising CO and a stream comprising H2 and C1-C3 alkanes, reintroducing part of stream C with the stream comprising CO into the oxygenate synthesis reactor. At least part of stream D is reintroduced into the steam reformer.
Process for converting carbon oxide(s) and hydrogen containing feedstocks to oxygen containing hydrocarbon compounds, in the presence of a particulate catalyst, by reacting carbon oxide(s) and hydrogen in the presence of a particulate catalyst in a conversion reactor to form products containing oxygen containing hydrocarbon compounds. Ether(s) selected from ethyl, propyl and butyl ether are added and reacted inside the conversion reactor.
Process for converting a hydrocarbon feedstock into alcohol(s), wherein the hydrocarbons are first converted into syngas, which is subsequently converted into alcohols. The process is carried out by performing the steps of (1) converting a hydrocarbon feedstock, together with an oxygen feedstock, in a auto-thermal reactor (ATR), into a stream A, containing a mixture of carbon oxide(s) and hydrogen, (2) converting at least part of stream A, in the presence of a catalyst in a oxygenate synthesis reactor under a temperature between 150 and 400° C. and a pressure of 20 to 200 bar, into an alcohols stream B containing methanol, ethanol, propanol, H2, C1-C3 alkanes, CO, CO2 and water, (3) separating stream B, into a stream C containing the CO, C1-C3 alkanes, H2 and methanol; a stream D containing the CO2; and recovering a stream E containing the ethanol, propanol(s) and water, (4) treating a fraction of stream C in order to separate the fraction into a stream containing CO, and a stream containing H2 and the C1-C3 alkanes, (5) reintroducing at least part of stream C together with the stream containing CO from step 4 into the oxygenate synthesis reactor of step 2, and (6) reintroducing at least part of stream D into the auto-thermal reactor of step (1).
Process for converting a hydrocarbon feedstock into alcohol(s), wherein the hydrocarbons are first converted into syngas, which is subsequently converted into alcohols. The process comprises the consecutive steps of 1) converting a hydrocarbon feedstock, in a syngas reactor, into a stream A, comprising essentially of a mixture of carbon oxide(s) and hydrogen, 2) converting at least part of stream A, in the presence of a catalyst in a oxygenate synthesis reactor under a temperature comprised between 150 and 400° C. and a pressure of 20 to 200 bar, into an alcohols stream B, comprising essentially methanol, ethanol, propanol(s), H2, C1-03 alkanes, CO, CO2 and water, 3) separating stream B, into a stream C containing the CO, C1-C3 alkanes, H2 and methanol; a stream D containing the CO2; and recovering a stream E containing the ethanol, propanol(s) and water, 4) treating a fraction of stream C in order to separate said fraction into a stream comprising CO, and a stream comprising H2 and the C1-C3 alkanes, 5) reintroducing at least part of stream C together with the stream comprising CO from step 4 into the oxygenate synthesis reactor of step 2, and 6) reintroducing at least part of stream D into the syngas reactor of step 1.
C07C 27/12 - Processes involving the simultaneous production of more than one class of oxygen-containing compounds by oxidation of hydrocarbons with oxygen
A process for the production of acetic acid comprising: introducing methanol and/or a reactive derivative thereof and carbon monoxide into a first reaction zone containing a liquid reaction composition comprising a carbonylation catalyst, optionally a carbonylation catalyst promoter, methyl iodide, methyl acetate, acetic acid and water; withdrawing at least a portion of the liquid reaction composition together with dissolved and/or entrained carbon monoxide from the first reaction zone; passing at least a portion of the withdrawn liquid reaction composition to a second reaction zone; passing at least a portion of the liquid reaction composition from the second reaction zone into a flash separation zone; wherein the temperature of the liquid reaction composition withdrawn from the first reaction zone is in the range of 170 to 195 °C; and the temperature of the liquid reaction composition passed from the second reaction zone to the flash separation zone is at least 8 °C greater than the temperature of the liquid reaction composition withdrawn from the first reaction zone.
C07C 51/12 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
48.
CARBONYLATION PROCESS FOR THE PRODUCTION OF ACETIC ACID AND/OR METHYL ACETATE
A process for the manufacture of at least one of acetic acid and methyl acetate by the carbonylation of methanol, dimethyl ether and/or dimethyl carbonate with carbon monoxide in the presence of a zeolite catalyst of structure type MOR having a crystal size of no greater than about 3 microns.
C07C 51/12 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
A process for the in-situ regeneration of a zeolite catalyst in a carbonylation process for the production of at least one of methyl acetate and acetic acid by contacting methanol, dimethyl ethyl or dimethyl carbonate with carbon monoxide in the presence of a zeolite catalyst, ceasing contact of the catalyst with the reactant, regenerating the catalyst with a regenerating gas selected from hydrogen or a mixture of hydrogen and carbon monoxide at a temperature in the range 250 to 600 ° C, terminating the hydrogen regenerating step and resuming contact of the catalyst with the reactant and carbon monoxide.
B01J 29/20 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the mordenite type containing iron group metals, noble metals or copper
C07C 51/12 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
C07C 67/37 - Preparation of carboxylic acid esters by reaction with carbon monoxide or formates by reaction of ethers with carbon monoxide
50.
CARBONYLATION PROCESS WITH IN SITU REGENERATION OF MORDENITE CATALYST
A process for the carbonylation of dimethyl ether, dimethyl carbonate and/or methanol with carbon monoxide and hydrogen in the presence of a mordenite catalyst to produce at least one of acetic acid and methyl acetate in which process the mordenite catalyst is regenerated in-situ by contacting the catalyst with a regenerating gas comprising a molecular oxygen-containing gas and an inert diluent at a total pressure in the range 1 to 100 bar and wherein the partial pressure of the molecular oxygen-containing gas is such that the temperature of the catalyst is maintained within the range 225 to 325 °C.
B01J 29/20 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the mordenite type containing iron group metals, noble metals or copper
B01J 38/14 - Treating with free oxygen-containing gas with control of oxygen content in oxidation gas
C07C 51/12 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
C07C 67/37 - Preparation of carboxylic acid esters by reaction with carbon monoxide or formates by reaction of ethers with carbon monoxide
51.
CARBONYLATION PROCESS FOR THE PRODUCTION OF METHYL ACETATE
A process for the manufacture of methyl acetate by the carbonylation of dimethyl ether or dimethyl carbonate with carbon monoxide under substantially anhydrous conditions in the presence of a Group IB metal loaded mordenite catalyst prepared by ion-exchanging mordenite with at least one Group IB metal, the ion-exchanged mordenite having a molar ratio of the Group IB metal to total aluminium present in the mordenite in the range 5 to 50mol %.
Process for producing alkene(s) from a feedstock containing at least one monohydric aliphatic paraffinic primary (or secondary) alcohol(s), consisting of ethanol or propanol(s) or a mixture thereof. The process includes the steps of converting the monohydric aliphatic paraffinic primary (or secondary) alcohol(s) into the corresponding same carbon number alkene(s) in a reactive distillation column at elevated pressure and temperature so that the heads stream extracted from the top of the reactive distillation column comprises essentially the alkene(s), cooling the heads stream from the first step to a temperature sufficient to condense at least part of the alkene(s) with the highest boiling point, recycling at least part of the condensed alkene(s) from the second step back into the reactive distillation column, as a reflux return, and simultaneously recovering the remaining alkene(s).
Process for the production of alkenes from a feedstock comprising monohydric aliphatic paraffinic alcohols having from 2 to 3 carbon atoms, in which the monohydric aliphatic paraffinic alcohols containing 2 to 3 carbon atoms are dehydrated into the corresponding same carbon number alkenes at a pressure of more than 0.5 MPa but less than 4.0 MPa and at a temperature of less than 300° C. The alcohols present in the feedstock comprise ethanol, propanol(s), less than 1 wt % of methanol and less than 1 wt % of C3+ alcohols.
A method for the on-line analysis of a process stream, which process stream is a feedstream to or an exit stream from a steam reformer, which process stream has a temperature of at least 2000C, the components of which process stream are in the vapour phase, which method comprises: (a) taking a slipstream from the process stream; (b) cooling the slipstream to a temperature above its dew point; (c) analysing the cooled slipstream by near infra-red (NIR) spectroscopy to obtain a spectrum characterising NIR-absorbing components of the process stream; and (d) correlating the spectrum obtained to established calibration models from NIR spectroscopy using chemometric techniques to determine the concentration of, and/or to determine the partial pressure of one or more of the NIR-absorbing components of the process stream.
G01N 21/35 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
55.
CARBONYLATION PROCESS FOR THE PRODUCTION OF ACETIC ACID USING METAL-PINCER LIGAND CATALYSTS
A process for the production of acetic acid by the liquid phase carbonylation of an alcohol and/or a reactive derivative thereof in which there is employed a catalyst comprising a complex of rhodium or iridium with a pincer ligand.
C07C 51/12 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
Process for producing alkene(s) from a feedstock containing at least one monohydric aliphatic paraffinic alcohol having from 2 to 5 carbon atoms. The process is carried out by 1 converting the monohydric aliphatic paraffinic alcohol(s) containing 2 to 5 carbon atoms in a reactive distillation column at elevated pressure and temperature into a heads stream having the corresponding same carbon number alkene(s) and ether(s), 2 separating the heads stream from step 1 into an ether(s) enriched stream and an alkene(s) enriched stream, 3 recycling at least part of the ether(s) enriched stream from step 2 as a reflux return to the reactive distillation column, 4 simultaneously separating the alkene(s) enriched stream from step 2 into alkene(s) and ether(s), and 5 recycling at least part of the separated ether(s) from step 4 into the reactive distillation column. An alkene(s) stream from step 4 is then recovered.
C07C 1/20 - 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
Production of methyl acetate by carbonylating a dimethyl ether feed with carbon monoxide under substantially anhydrous conditions, in the presence of a zeolite catalyst at a temperature in the range 240 °C to 350 °C and in the presence of hydrogen.
Production of methyl acetate by carbonylating a dimethyl ether feed with carbon monoxide under substantially anhydrous conditions, in the presence of a mordenite catalyst which contains copper and/or silver and 0.05 to 10 mol% platinum relative to aluminium.
Production of methyl acetate by carbonylating, under substantially anhydrous conditions, a dimethyl carbonate feed with carbon monoxide in the presence of a zeolite carbonylation catalyst.
C07C 67/36 - Preparation of carboxylic acid esters by reaction with carbon monoxide or formates
C07C 69/14 - Acetic acid esters of monohydroxylic compounds
C07C 51/12 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
Production of methyl acetate by carbonylating, under substantially anhydrous conditions, a dimethyl carbonate feed with carbon monoxide in the presene of a zeolite carbonylation catalyst and hydrogen.
C07C 67/36 - Preparation of carboxylic acid esters by reaction with carbon monoxide or formates
C07C 69/14 - Acetic acid esters of monohydroxylic compounds
C07C 51/12 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
Production of methyl acetate by carbonylating a dimethyl ether feed with carbon monoxide in the presence of hydrogen under substantially anhydrous conditions, in the presence of a zeolite catalyst at a temperature in the range of greater than 250°C to 350°C and a dimethyl ether concentration of at least 1 mol%.
Production of methyl acetate by carbonylating a dimethyl ether feed with carbon monoxide under substantially anhydrous conditions, in the presence of a zeolite catalyst at a temperature in the range of greater than 250° C to 350° C and at a pressure in the range greater than 10 barg to 100 barg.
A product comprising a C1-C3 aliphatic carbbxylic acid or corresponding ester is produced by a process comprising reacting a C1-C3 aliphatic alcohol or a reactive derivative thereof with carbon monoxide in the presence of a zeolite catalyst having an 8-member ring channel which is interconnected with a channel defined by a ring with greater than or equal to 8 members, the 8-member ring having a window size of at least 2.5 Angstroms x at least 3.6 Angstroms and at least one Br즸nsted acid site and the zeolite having a silica : X2O3 ratio of at least 5, wherein X is selected from aluminium, boron, iron, gallium and mixtures thereof with the proviso that the zeolite is not mordenite or ferrierite.
C07C 51/12 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
64.
PROCESS FOR PRODUCING ALKENES FROM OXYGENATES BY USING SUPPORTED HETEROPOLYACID CATALYSTS
The present invention relates to a supported heteropolyacid catalyst, to a process for producing alkenes from oxygenates in the presence of said catalyst, and to the use of said catalyst in a process for producing alkenes from oxygenates at a higher productivity whilst reducing the formation of alkanes.
B01J 35/10 - Solids characterised by their surface properties or porosity
B01J 37/02 - Impregnation, coating or precipitation
C07C 1/20 - 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
C07C 1/24 - 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 by elimination of water
The present invention provides a process, that has a reduced level of CO2 emissions, for the conversion of hydrocarbons into alcohol(s) in the presence of a catalyst.
C07C 29/151 - 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
66.
PROCESS FOR THE CONVERSION OF HYDROCARBONS TO ALCOHOLS
The present invention provides a process, that has a reduced level of CO2 emissions, for the conversion of hydrocarbons into alcohol(s) in the presence of a catalyst.
C07C 29/151 - 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
67.
PROCESS FOR THE CONVERSION OF HYDROCARBONS TO OXYGENATES
The present invention provides a process, that has a reduced level of CO2 emissions, for the conversion of hydrocarbons into alcohol(s) in the presence of a catalyst.
C07C 29/151 - 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
A process for the production of a hydrocarbon which comprises contacting, in a reactor, methanol and/or dimethyl ether with a catalyst comprising a metal halide, such as a zinc halide, in which the methanol and/or dimethyl ether is contacted with the catalyst in the presence of at least one phosphorus compound having at least one P-H bond.
This invention relates to the production of alcohol, CO2 and hydrogen from a hydrogen and carbon-containing compound, such as a hydrocarbon. More specifically, this invention relates to the production from a hydrogen and carbon containing compound of - mixed alcohol's for hydrogen and CO2 improved separation and recovery, - CO2 for hydrocarbon improved recovery from wells with optional CO2 sequestration in the wells, - Alcohol's and CO2 for enhanced hydrocarbon recovery from wells through the introduction of a stream containing the said alcohol's and CO2 into the wells with optional sequestration of CO2, and - hydrogen for power generation.
C07C 29/151 - 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
C07C 31/10 - Monohydroxylic acyclic alcohols containing three carbon atoms
C07C 31/12 - Monohydroxylic acyclic alcohols containing four carbon atoms
C01B 3/36 - 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 oxygen or mixtures containing oxygen as gasifying agents
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
E21B 43/16 - Enhanced recovery methods for obtaining hydrocarbons
70.
PROCESS FOR THE CONVERSION OF SYNTHESIS GAS TO OXYGENATES
The present invention relates to an improved process for the conversion of carbon oxide(s) et hydrogen containing feedstocks to oxygen containing hydrocarbon compounds in the presence of a particulate catalyst. In particular, the present invention relates to an improved process for the conversion of carbon oxide(s) (CO et CO2) et hydrogen containing feedstocks, e.g. Synthesis gas or syngas, to alcohols in the presence of a particulate modified molybdenum sulphide based catalyst and/or a modified methanol based catalyst and/or a modified Fischer-Tropsch catalyst and/or a precious metal based catalyst (e.g. rhodium).
C07C 29/151 - 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
71.
PROCESS FOR THE CONVERSION OF SYNTHESIS GAS TO OXYGENATES
The present invention relates to an improved process for the conversion of carbon oxide(s) and hydrogen containing feedstocks to oxygen containing hydrocarbon compounds in the presence of a particulate catalyst. In particular, the present invention relates to an improved process for the conversion of carbon oxide(s) (CO and CO2) and hydrogen containing feedstocks, e.g. synthesis gas or syngas, to alcohols in the presence of a particulate modified molybdenum sulphide based catalyst, or a modified methanol based catalyst and/or a modified Fischer- Tropsch catalyst and/or a precious metal (e.g. rhodium) based catalyst.
C07C 29/151 - 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
72.
PROCESS FOR THE PREPARATION OF CARBONYLATION PRODUCTS
Process for preparing a carboxylic acid and/or ester thereof by carbonylating an alcohol and/or reactive derivative thereof with carbon monoxide in the presence of a silver loaded mordenite catalyst.
C07C 51/12 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
Preparation Of C1-C6 aliphatic carboxylic acids and/or esters or anhydrides thereof by reacting an alocohol and/or reactive derivative thereof with carbon monoxide under hydrous conditions in the presence of a ferrierite catalyst.
C07C 51/12 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
C07C 67/37 - Preparation of carboxylic acid esters by reaction with carbon monoxide or formates by reaction of ethers with carbon monoxide
B01J 29/65 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the ferrierite type, e.g. types ZSM-21, ZSM-35 or ZSM-38
A process for the production of acetic acid which process comprises carbonylating methanol and/or a reactive derivative thereof in a liquid reaction composition in which there exists in equilibrium, at least a first soluble catalytic species and a second soluble catalytic species, wherein the first catalytic species is the least catalytically active or promotionally active of the species existing in the equilibrium, comprises determining (i) the concentration of the first catalytic species and/or (ii) the ratio of the concentration of the first catalytic species to the concentration of the second catalytic species in equilibrium therewith, present in the liquid reaction composition and/or a present in a liquid fraction in a separation step and maintaining (i) and/or (ii) below a pre-determined value, preferably by adjusting the concentration of at least the first catalytic species present in the liquid reaction composition and/or liquid fraction.
C07C 51/12 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
B01J 19/00 - Chemical, physical or physico-chemical processes in generalTheir relevant apparatus
B01J 19/12 - Processes employing the direct application of electric or wave energy, or particle radiationApparatus therefor employing electromagnetic waves
A process for the production of acetic acid by carbonylating methanol and/or a reactive derivative thereof with carbon monoxide in the presence of a promoted iridium carbonylation catalyst wherein the promoters are indium and rhenium.
C07C 51/12 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
A process for the production of acetic acid by carbonylating methanol and/or a reactive derivative thereof with carbon monoxide in the presence of an iridium promoted carbonylation catalyst wherein the promoters are ruthenium and at least one of niobium and tantalum.
C07C 51/12 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
A process for the production of acetic acid by carbonylating methanol and/or a reactive derivative thereof with carbon monoxide in the presence of a promoted iridium carbonylation catalyst wherein the promoters are boron and gallium.
C07C 51/12 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
A reactor and process for reducing the probability of ignition in fluid bed-catalysed oxidation reactions in which a molecular oxygen-containing gas is fed into a region of a fluidised catalyst bed having a higher time-averaged catalyst particle density higher than the fluidised catalyst bed as a whole.
B01J 8/24 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with fluidised particles according to "fluidised-bed" technique
B01J 8/18 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with fluidised particles
A process for the carbonylation of an alcohol and/or reactive derivative thereof, in which one or more reaction zone feed streams are fed to a reaction zone in which exothermic carbonylation takes place to produce one or more product streams. Heat from at least a portion of the one or more product streams is fed to a first heat-exchange stream, such as a supply of pressurised steam. The process is characterised by heat from a second heat-exchange stream, having a temperature lower than that of the one or more product streams, being transferred to a reaction zone feed stream, so that the one or more product streams comprise heat originating from the second heat-exchange stream and heat generated by the exothermic carbonylation reaction. Thus, heat originating from the second heat-exchange stream can be transferred to the first heat-exchange stream, resulting in reduced heat loss and greater process efficiency.
C07C 51/12 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
The present invention relates to a process for the production of mono-olefin(s) from a feedstock comprising of at least one monohydric aliphatic paraffinic alcohol.
C07C 1/20 - 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
C07C 1/24 - 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 by elimination of water
C07C 1/24 - 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 by elimination of water
C07C 1/24 - 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 by elimination of water
C07C 1/24 - 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 by elimination of water
A method and apparatus for obtaining the gas-phase electromagnetic radiation spectrum of a liquid sample, which apparatus comprises an analysis chamber having an inlet and an outlet, wherein the inlet and analysis chamber are adapted such that, in use, liquid sample is drawn into the inlet through capillary action and vapourised therein, the vapourised liquid sample remaining in the gas phase within the inlet and the analysis chamber. The apparatus may be attached to a process conduit or vessel containing a source of the liquid for analysis, making it suitable for collecting on-line spectra.
G01N 21/35 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
85.
PROCESS FOR THE CONVERSION OF SYNTHESIS GAS TO OXYGENATES
The present invention relates to an improved process for the conversion of carbon oxide(s) and hydrogen containing feedstocks to oxygen containing hydrocarbon compounds in the presence of a particulate catalyst. In particular, the present invention relates to an improved process for the conversion of carbon oxide(s) (CO and CO2) and hydrogen containing feedstocks, e.g. synthesis gas or syngas, to alcohols in the presence of a particulate modified molybdenum sulphide based catalyst, or a modified methanol based catalyst and/or a modified Fischer-Tropsch catalyst.
C07C 29/153 - 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
The present invention relates to a process for the production of alkene(s) from a feedstock comprising of at least one monohydric aliphatic paraffinic alcohol in a reactive distillation reactor with olefin recycle.
C07C 1/24 - 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 by elimination of water
The present invention relates to a process for the production of alkene(s) from a feedstock comprising of at least one monohydric aliphatic paraffinic alcohol by using a reactive distillation reactor for the dehydration of mixed alcohols.
C07C 1/24 - 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 by elimination of water
patents
