| CELANESE INTERNATIONAL CORPORATION Patent applications |
| Patent application number | Title | Published |
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| 20120130123 | PRODUCTION OF ACETIC ACID WITH AN INCREASED PRODUCTION RATE - A method for producing acetic acid at increased production rates. The method may include a heat transfer system for generating a steam product from the heat of the reaction. In addition, the method may include multiple drying columns. The steam product may be integrated with at least one of the multiple drying columns. | 05-24-2012 |
| 20120108842 | Methods for Producing a Vinyl Acetate Composition Having a Low Impurity Content - In one embodiment, the invention is to a method for producing a vinyl acetate composition. The method comprises the step of contacting acetic acid, oxygen, and ethylene under conditions effective to form a crude vinyl acetate composition comprising vinyl acetate, acetic acid, residual oxygen, and water. The method further comprises the step of contacting the crude vinyl acetate composition or a derivative thereof with at least one scavenger to form a treated crude vinyl acetate composition. | 05-03-2012 |
| 20120090981 | Process for Recovering Halogen Promoters and Removing Permanganate Reducing Compounds - This invention relates to processes for producing acetic acid and, in particular, to improved processes for recovering C | 04-19-2012 |
| 20120090980 | Process for Recovering Halogen Promoters and Removing Permanganate Reducing Compounds - This invention relates to processes for producing acetic acid and, in particular, to improved processes for recovering C | 04-19-2012 |
| 20120088929 | Production of a acetic acid comprising feeding at least one reactant to a recycle stream - This invention relates to processes for producing acetic acid from carbon monoxide and, in particular, to improved processes, wherein at least one reactant is fed upstream of a reactor recycle pump and/or to a pump-around loop. | 04-12-2012 |
| 20120083623 | Production of Acetic Acid with High Conversion Rate - The present invention is to a process for producing acetic acid comprising the step of reacting a carbon monoxide feed and methanol and/or a methanol derivative in a first reactor to produce a crude acetic acid product. The carbon monoxide may comprise less than 99.5 mol % carbon monoxide. The process further comprises the step of purging a carbon monoxide purge stream comprising a first amount of residual carbon monoxide and one or more impurities. Preferably, the first amount is greater than 20 mol %. The process further comprises the step of separating the crude acetic acid product into at least one derivative stream comprising a second amount of residual carbon monoxide. The process further comprises the step of reacting at least a portion of the second amount of residual carbon monoxide and methanol and/or a methanol derivative in a second reactor to produce additional acetic acid. | 04-05-2012 |
| 20120078012 | PRODUCTION OF ACETIC ACID WITH HIGH CONVERSION RATE - A process for producing acetic acid comprising the steps of reacting carbon monoxide and at least one of methanol and a methanol derivative in a first reactor under conditions effective to produce a crude acetic acid product; separating the crude acetic acid product into at least one derivative stream, at least one of the at least one derivative stream comprising residual carbon monoxide; and reacting at least a portion of the residual carbon monoxide with at least one of methanol and a methanol derivative over a metal catalyst in a second reactor to produce additional acetic acid. | 03-29-2012 |
| 20120078011 | PUMP AROUND REACTOR FOR PRODUCTION OF ACETIC ACID - The present invention relates to improved processes for the manufacture of acetic acid. A pump around reactor is used to produce additional heat for the production of steam. The pump around reactor receives a portion of the reaction solution produced by the carbonylation reactor and further reacts that portion with additional carbon monoxide and/or reactants. | 03-29-2012 |
| 20120078006 | Integrated Process for the Production of Vinyl Acetate from Acetic Acid Via Ethylene - This invention provides an integrated two stage economical process for the production of vinyl acetate monomer (VAM) from acetic acid in the vapor phase. First, acetic acid is selectively hydrogenated over a hydrogenating catalyst composition to form ethylene either in a single reactor zone or in a dual rector zone wherein the intermediate hydrogenated products are either dehydrated and/or cracked to form ethylene. In a subsequent second stage so formed ethylene is reacted with molecular oxygen and acetic acid over a suitable catalyst to form VAM. In an embodiment of this invention reaction of acetic acid and hydrogen over a hydrogenation catalyst and subsequent reaction over a dehydration catalyst selectively produces ethylene, which is further mixed with acetic acid and molecular oxygen and reacted over a supported palladium/gold/potassium catalyst. | 03-29-2012 |
| 20120059197 | ALCOHOL PRODUCTION PROCESS INTEGRATING ACETIC ACID FEED STREAM COMPRISING WATER FROM CARBONYLATION PROCESS - In one embodiment, the invention is to a process for producing ethanol, comprising the step of providing from a distillation column in a carbonylation process a purified acetic acid stream comprising up to 25 wt. % water. The process further comprises the step of hydrogenating acetic acid of the purified acetic acid stream in the presence of a catalyst and under conditions effective to form a crude ethanol product comprising ethanol and water. Ethanol is recovered from the crude ethanol product. | 03-08-2012 |
| 20120046502 | PROCESS FOR RECOVERING ETHANOL WITH VAPOR SEPARATION - Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. Separation and purification processes of the crude ethanol products are employed to allow recovery of ethanol and remove impurities. | 02-23-2012 |
| 20120046501 | Hydrogenolysis of Ethyl Acetate in Alcohol Separation Processes - Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid and by reacting a portion of the crude ethanol product or one or more derivative streams containing ethyl acetate obtained therefrom in the presence of hydrogen, via hydrogenolysis. The one or more derivative streams comprise ethyl acetate that are reacted via hydrogenolysis to form additional ethanol that may be directly or indirectly fed to the separation zone or the hydrogenation reactor. | 02-23-2012 |
| 20120041230 | PROCESS AND SYSTEM FOR SUPPLYING VAPOR FROM DRYING COLUMN TO LIGHT ENDS COLUMN - The present invention is directed to a method of heating a light ends column through directing one or more vapor side streams from a drying column to the light ends column. The present invention is also directed to a carbonylation process for producing acetic acid, wherein one or more vapor streams from a drying column provide the external energy required to drive separation in the light ends column. | 02-16-2012 |
| 20120041075 | ETHANOL COMPOSITIONS - In one embodiment, the present invention is to an ethanol composition comprising at least 85 wt. % ethanol and from 95 wppm to 850 wppm isopropanol. | 02-16-2012 |
| 20120036769 | INTEGRATED PROCESS FOR PRODUCING ALCOHOLS FROM A MIXED ACID FEED - Processes for producing alcohols such as ethanol and propanol from a mixed acid feedstock in an integrated process. In one embodiment, the process comprises the step of carbonylating methanol in the presence of a carbonylation catalyst to form a mixed acid feedstock comprising acetic acid and one or more higher acids, preferably comprising propionic acid. The mixed acid feed is hydrogenated in the presence of a hydrogenation catalyst to form a crude alcohol product comprising ethanol and one or more higher alcohols, preferably including propanol. | 02-16-2012 |
| 20120035400 | PROCESS FOR PURIFYING ETHANOL - In one embodiment, the invention is to a process for producing ethanol. The process comprises the step of hydrogenating an acetic acid feed stream in a first reactor to form a crude ethanol product. The crude ethanol product may comprise, among other components, ethanol, acetaldehyde, and residual acetic acid. The process further comprises the step of recovering acetaldehyde from the crude ethanol product. The process further comprises the steps of feeding a first portion of the recovered acetaldehyde to the first reactor and reacting the first portion of the recovered acetaldehyde in the first reactor to form additional ethanol. In addition, the inventive process may comprise the steps of feeding a second portion of the recovered acetaldehyde to a second reactor and reacting the second portion of the recovered acetaldehyde in the second reactor to faun an additional product. | 02-09-2012 |
| 20120030997 | DENATURED FUEL ETHANOL COMPOSITIONS FOR BLENDING WITH GASOLINE OR DIESEL FUEL FOR USE AS MOTOR FUELS - A denatured fuel ethanol composition for blending with fuels, including gasoline and diesel fuel. The composition includes an ethanol composition comprising at least 92 wt. % ethanol; and from 95 wppm to 1,000 wppm isopropanol; and at least 1.96 vol. % fuel denaturant. | 02-09-2012 |
| 20120030996 | ETHANOL/FUEL BLENDS FOR USE AS MOTOR FUELS - An ethanol/fuel blend composition. The ethanol/fuel blend composition includes an ethanol composition including at least 92 wt. % ethanol, and from 95 wppm to 1,000 wppm isopropanol and a fuel. | 02-09-2012 |
| 20120030995 | PROCESSES FOR PRODUCING ALCOHOLS FROM A MIXED ACID FEED - Processes for producing alcohols such as ethanol and propanol from a mixed acid feedstock. In one embodiment, the process comprises the steps of hydrogenating a mixed acid feedstock comprising acetic acid and one or more higher acids, preferably comprising propionic acid, in the presence of a catalyst to form a crude alcohol product comprising ethanol and one or more higher alcohols, preferably including propanol. | 02-09-2012 |
| 20120021237 | VINYL ESTER/ETHYLENE-BASED BINDERS FOR PAPER AND PAPERBOARD COATINGS - Disclosed are surfactant-stabilized latex emulsions which can be used as binders in paper coating compositions. Such latex emulsions comprise an interpolymer formed by emulsion polymerizing monomers selected from vinyl esters, e.g., vineyl acetate; ethylene; certain unsaturated mono- and di-carboxylic acid materials such as acrylic acid or maleic anhydride; and certain polyethylenically unsaturated cross-linking co-monomers such as diallyl phthalate. These latex emulsions are stabilized with surfactants which are substantially free of environmentally suspect alkyl phenol ethoxylates (APEs). The paper coating compositions containing latex emulsion binders of this type exhibit especially desirable coating strength as quantified by the Dry Pick Values (as defined herein) which such compositions provide. | 01-26-2012 |
| 20120010448 | Finishing Reactor for Purifying Ethanol - A process for purifying ethanol by using a finishing reactor to remove impurities, such as ethyl acetate, acetaldehyde, acetic acid, and diethyl acetal, present in ethanol after distilling a crude product from a hydrogenation reactor. The finishing reactor may reduce the impurities in the presence of hydrogen and a catalyst or may hydrolyze the impurities. | 01-12-2012 |
| 20120010447 | Weak Acid Recovery System for Ethanol Separation Processes - Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid and recovery of unreacted acetic acid from a weak acid stream. The unreacted acetic acid may be recovered as a dry acetic acid composition and may be directly or indirectly fed to the hydrogenation reactor. | 01-12-2012 |
| 20120010446 | Hydrogenolysis of Ethyl Acetate in Alcohol Separation Processes - Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid and by reacting a portion of the crude ethanol product or one or more derivative streams containing ethyl acetate obtained therefrom in the presence of hydrogen, via hydrogenolysis. The one or more derivative streams comprise ethyl acetate that are reacted in via hydrogenolysis form additional ethanol that may be directly or indirectly fed to the separation zone or the hydrogenation reactor. | 01-12-2012 |
| 20120010445 | Low Energy Alcohol Recovery Processes - Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid using various combinations of membranes and/or distillation columns. | 01-12-2012 |
| 20120010444 | Alcohol Production Process with Impurity Removal - A method of removing impurities, such as halogens, sulfurs, and corrosion metal impurities, in an ethanol production process. Ion exchange resins may be used to remove these impurities from acetic acid feed streams and recycle streams that comprise unreacted acetic acid. | 01-12-2012 |
| 20120010443 | Esterification Of Vapor Crude Product In The Production Of Alcohols - Ethanol production process for recovering ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. Ethanol recovery is improved by esterifying a vapor crude ethanol product to reduce unreacted acetic acid concentration. | 01-12-2012 |
| 20120010442 | PROCESS FOR RECOVERING ETHANOL WITH SIDEDRAWS TO REGULATE C3+ ALCOHOLS CONCENTRATIONS - Purification and/or recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. Separation and purification processes of a crude ethanol mixture are employed to allow recovery of ethanol and remove impurities. In particular, the process involves one or more sidedraws to regulate C | 01-12-2012 |
| 20120010441 | PROCESS FOR RECYCLING GAS FROM ACETIC ACID HYDROGENATION - Monitoring and recycling gases from acetic acid hydrogenation reaction to maintain a constant pressure in the hydrogenation reaction system. Purging of the vapor stream comprising hydrogen may be limited or reduced. Further purging of the by-product may be from the dissolved by-product gases. | 01-12-2012 |
| 20120010440 | Separating Ethanol and Ethyl Acetate Under Low Pressure Conditions - A crude ethanol product obtained from the hydrogenation of acetic acid comprises ethanol and ethyl acetate. Using a distillation column operated at a pressure of from 0.1 to 100 kPa, the ethyl acetate and ethanol may be effectively separated. In addition, maintaining the amount of water that is fed to the distillation column to an amount less than 10 wt. %, based on the weight of all components fed to the distillation column, provides an energy benefit. | 01-12-2012 |
| 20120010439 | PROCESS FOR RECOVERING ALCOHOL PRODUCED BY HYDROGENATING AN ACETIC ACID FEED STREAM COMPRISING WATER - Purifying and/or recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid from an feed stream comprising water. The presence of water does not significantly impact acid conversion or selectivity to ethanol. Further the addition of water allows for improved recovery of ethanol. | 01-12-2012 |
| 20120010438 | Reduced Energy Alcohol Separation Process - Recovery of alcohols, in particular ethanol, from a crude ethanol product obtained from the hydrogenation of acetic acid using a reduced energy process. The crude ethanol product may be fed to a distillation column in which a substantial portion of the water is removed with the acetic acid in the residue. The ethanol product is obtained from the distillate. | 01-12-2012 |
| 20120010437 | Liquid Esterification For The Production Of Alcohols - Purifying and/or recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. Separation and purification processes of crude ethanol mixture are employed to allow recovery of ethanol and remove impurities. In addition, the process involves returning acetaldehyde separated from the crude ethanol product to the reactor. | 01-12-2012 |
| 20120010436 | Separation of Vapor Crude Alcohol Product - Recovery of alcohol, in particular ethanol, by separating a vapor crude alcohol product obtained from the hydrogenation of acetic acid using a low energy process. The vapor crude ethanol product is separated in a column to produce a distillate stream comprising ethanol and at least one non-condensable gas. The vapor crude ethanol product may pass through a membrane before the first distillation column to separate the at least one non-condensable gas from the ethanol. The ethanol product is subsequently recovered from the distillate stream. | 01-12-2012 |
| 20110306806 | Synthesis of Ethanol from Biomass - A process for the selective production of ethanol by vapor phase reaction of acetic acid over a hydrogenating catalyst composition to form ethanol is disclosed and claimed. In an embodiment of this invention reaction of acetic acid and hydrogen over either cobalt and palladium supported on graphite or cobalt and platinum supported on silica selectively produces ethanol in a vapor phase at a temperature of about 250° C. | 12-15-2011 |
| 20110288333 | Processes for Producing Acetic Acid - Processes for the reduction and/or removal of permanganate reducing compounds (PRC'S) formed by the carbonylation of methanol in the presence of a Group VIII metal carbonylation catalyst to produce acetic acid are disclosed. More specifically, processes for reducing and/or removing PRC's or their precursors from intermediate streams during the formation of acetic acid by said carbonylation processes are disclosed. In particular, processes in which a low boiling overhead vapor stream from a light ends column is subjected to a distillation to obtain an overhead that is subjected to an extraction to selectively remove and/or reduce PRC's from the process is disclosed. The processes include steps of recycling one or more return streams derived from the distillation step and/or the extraction step to a light ends column and/or a drying column in order to improve water control in the overall reaction system. | 11-24-2011 |
| 20110282110 | Palladium Catalysts for Making Ethanol from Acetic Acid - Catalysts and processes for forming catalysts for use in hydrogenating acetic acid to form ethanol. The catalyst comprises palladium and chromium on a support. | 11-17-2011 |
| 20110282109 | Ethanol Production from Acetic Acid Utilizing a Cobalt Catalyst - A process for the selective and direct formation of ethanol from acetic acid comprising contacting a feed stream containing acetic acid and hydrogen in vapor form at an elevated temperature with a hydrogenation catalyst comprising cobalt and one or more metals selected from the group consisting of palladium, platinum, rhodium, ruthenium, rhenium, iridium, chromium, copper, tin, molybdenum, tungsten, vanadium, zinc and iron on a catalyst support. | 11-17-2011 |
| 20110275865 | PROCESS FOR SEPARATING ACETALDEHYDE FROM ETHANOL-CONTAINING MIXTURES - Purifying and/or recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. Separation and purification processes of crude ethanol mixture are employed to allow recovery of ethanol and remove impurities. In particular, light ends are separated in an acetaldehyde removal column operating at a pressure greater than atmospheric pressure to recover acetaldehyde that may be returned to the reactor and reduce acetaldehyde concentrations in an ethyl acetate stream. | 11-10-2011 |
| 20110275864 | PROCESS FOR PRODUCING ETHANOL USING AN EXTRACTIVE DISTILLATION COLUMN - Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. Separation and purification processes of crude ethanol product are employed to allow recovery of ethanol and remove impurities. In addition, the process involves separating the crude ethanol product using an extractive distillation column that employs an extraction agent, such as a recycled stream comprising water. | 11-10-2011 |
| 20110275863 | PROCESSES FOR MAXIMIZING ETHANOL FORMATION IN THE HYDROGENATION OF ACETIC ACID - In one embodiment, the invention is to a process for purifying a crude ethanol product. The process comprises the step of hydrogenating acetic acid in a reactor in the presence of a catalyst to form the crude ethanol product. The process further comprises the step of separating at least a portion of the crude ethanol product in a purification zone. The purification zone preferably comprises a first column, which yields a first distillate comprising ethanol, water and ethyl acetate, and a first residue comprising acetic acid. The at least a portion of the crude ethanol product has a residence time from the reactor to the purification zone from 5 minutes to 5 days. | 11-10-2011 |
| 20110275862 | PROCESS FOR PURIFYING A CRUDE ETHANOL PRODUCT - Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. Separation and purification processes of the crude ethanol products are employed to allow recovery of ethanol and remove acetal impurities. | 11-10-2011 |
| 20110275861 | HYDROLYSIS OF ETHYL ACETATE IN ETHANOL SEPARATION PROCESS - Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid by hydrolyzing a portion of the crude ethanol product or one or more derivative streams obtained therefrom. The one or more derivative streams comprise ethyl acetate and the hydrolyzed stream is directly or indirectly fed to the distillation zone or the hydrogenation reactor. | 11-10-2011 |
| 20110263911 | Direct and Selective Production of Ethanol from Acetic Acid Utilizing a Platinum/ Tin Catalyst - A process for the selective production of ethanol by vapor phase reaction of acetic acid over a hydrogenating catalyst composition to form ethanol is disclosed and claimed. In an embodiment of this invention reaction of acetic acid and hydrogen over a platinum and tin supported on silica, graphite, calcium silicate or silica-alumina selectively produces ethanol in a vapor phase at a temperature of about 250° C. | 10-27-2011 |
| 20110263910 | Copper Catalysts for Making Ethanol from Acetic Acid - Catalysts and processes for forming copper catalysts for use in hydrogenating acetic acid to form ethanol. The catalyst may also comprise a second metal selected from the group consisting of chromium, palladium, platinum, rhodium, ruthenium, silver, tungsten, vanadium, and zinc. | 10-27-2011 |
| 20110263891 | Catalyst for Gas Phase Hydrogenation of Carboxylic Acids Having a Support Modified with a Reducible Metal Oxide - A process for selective formation of ethanol from acetic acid includes contacting a feed stream containing acetic acid and hydrogen at an elevated temperature with catalyst comprising platinum and tin on a high surface area silica promoted with calcium metasilicate. Selectivities to ethanol of over 85% are achieved at 280° C. with catalyst life in the hundreds of hours. | 10-27-2011 |
| 20110257443 | Catalyst Supports Having Crystalline Support Modifiers - A catalyst comprising a first metal, a silicaceous support, and at least one metasilicate support modifier, wherein at least 1 wt. % of the at least one metasilicate support modifier is crystalline in phase, as determined by x-ray diffraction. The invention also relates to processes for forming such catalysts, to supports used therein, and to processes for hydrogenating acetic acid in the presence of such catalysts. | 10-20-2011 |
| 20110257442 | Process for Vaporizing Acetic Acid for Hydrogenation Processes to Produce Ethanol - Vaporizing acetic acid in the presence of hydrogen to provide a vapor feed stream for a hydrogenation process that produces ethanol. The vaporizer forms a vapor feed stream and a blowdown stream having a weight ratio of the vapor feed stream to the blowdown stream of at least 2:1. The acetic acid may vaporized at a temperature below acetic acid's boiling point at the operating pressure of the reactor. The hydrogenation process produces a crude ethanol product and ethanol is separated from the crude product. In addition, at least one recycle stream comprising acetic acid and less than 1.0 wt. % compounds having a boiling point higher than acetic acid, may also be separated. The recycle streams may be introduced to the vaporizer along with acetic acid to form the vapor feed stream. | 10-20-2011 |
| 20110256046 | PROCESS FOR PRODUCING AMMONIUM SALTS - In one embodiment, the invention is to a process for producing an ammonium salt composition. The process comprises the step of providing a process stream comprising sulfuric acid, methylene dichloride, and a tertiary amine or a precursor thereof. The process further comprises the step of contacting the process stream with ammonia under conditions effective to form a product stream and a waste stream. The product stream comprises the ammonium salt and the waste stream comprises water, methylene dichloride, ammonia, and the tertiary amine. The process further comprises the step of deriving from the waste stream an off gas stream comprising ammonia and a first amount of methylene dichloride. The process also comprises the step of contacting at least a portion of the off gas stream or a derivative thereof with an adsorbent under conditions effective to separate at least a portion of the off gas into a methylene dichloride stream comprising methylene dichloride. | 10-20-2011 |
| 20110256045 | PROCESS FOR PRODUCING AMMONIUM SALTS - In one embodiment, the invention is to a process of producing an ammonium salt composition. The process comprises the step of providing a process stream comprising sulfuric acid and at least one tertiary amine. The process further comprises the step of contacting the process stream with ammonia under conditions effective to form a waste stream and a product stream. The waste stream comprises water, the tertiary amine, and ammonia and the product stream comprises a first amount of ammonium salt. The process further comprises the step of deriving from the waste stream an off gas stream comprising a preliminary amount of ammonia. The process also comprises the step of contacting the off gas stream with an acid under conditions effective to form an ammonium salt stream and a purge stream. The ammonium salt stream comprises a second amount of ammonium salt and the purge stream comprises a reduced amount of ammonia, which is less than the preliminary amount. | 10-20-2011 |
| 20110251435 | Direct and Selective Production of Acetaldehyde from Acetic Acid Utilizing a Supported Metal Catalyst - A process for the selective production of acetaldehyde by vapor phase reaction of acetic acid over a hydrogenating catalyst composition to form acetaldehyde is disclosed and claimed. In an embodiment of this invention reaction of acetic acid and hydrogen over platinum and iron supported on silica selectively produces acetaldehyde in a vapor phase at a temperature of about 300° C. | 10-13-2011 |
| 20110250101 | Method and Apparatus for Making Acetic Acid with Improved Light Ends Column Productivity - An improved apparatus and method of producing acetic acid includes condensing overhead vapor to provide reflux to the light ends column as well as condensing vapor from a central portion of the light ends column to increase capacity. Throughput or load on the light ends column is substantially reduced without compromising product quality. | 10-13-2011 |
| 20110245546 | Ethanol Production from Acetic Acid Utilizing a Cobalt Catalyst - A process for the selective production of ethanol by vapor phase reaction of acetic acid over a hydrogenating catalyst composition to form ethanol is disclosed and claimed. In an embodiment of this invention reaction of acetic acid and hydrogen over either cobalt and palladium supported on graphite or cobalt and platinum supported on silica selectively produces ethanol in a vapor phase at a temperature of about 250° C. | 10-06-2011 |
| 20110190552 | Process for Heat Integration for Ethanol Production and Purification Process - Ethanol production from the hydrogenation of acetic acid requires energy to drive the hydrogenation reaction and the purification of the crude ethanol product. Heat integration process to recover heat from one part of the production process to be used within the process improves efficiencies and reduces costs. | 08-04-2011 |
| 20110190551 | Processes for Producing Ethanol from Acetaldehyde - In one embodiment, the invention is to a process for forming an ethanol mixture by hydrogenating an acetaldehyde feed stream in the presence of a catalyst. The acetaldehyde feed stream comprises acetaldehyde and at least one of acetic acid and ethanol. Preferably the acetaldehyde feed stream is a by-product stream from a vinyl acetate synthesis process. | 08-04-2011 |
| 20110190550 | PROCESSES FOR PRODUCING ANHYDROUS ETHANOL COMPOSITIONS - In one embodiment, the present invention is to a process for producing a anhydrous ethanol composition comprising hydrogenating acetic acid in the presence of a catalyst to form a crude ethanol product; separating in a first column at least a portion of the crude ethanol product into a first distillate comprising ethanol, water and ethyl acetate, and a first residue comprising acetic acid; separating in a second column at least a portion of the first distillate into a second distillate comprising ethyl acetate and a second residue comprising ethanol and water; separating in a third column at least a portion of the second residue into a third distillate comprising ethanol and residual water and a third residue comprising separated water; and dehydrating at least a portion of the third distillate to form the anhydrous ethanol composition. The anhydrous ethanol composition, as formed, comprises less than 1 wt. % water, based on the total weight of the anhydrous ethanol composition. | 08-04-2011 |
| 20110190549 | PROCESS FOR PRODUCING A WATER STREAM FROM ETHANOL PRODUCTION - In one embodiment, the invention is to a process for producing a water stream comprising the steps of hydrogenating acetic acid to form a crude ethanol product and separating at least a portion of the crude ethanol product in at least one column of a plurality of columns into a distillate comprising ethanol and a residue comprising the water stream. The water stream preferably is essentially free of organic impurities other than acetic acid and ethanol. | 08-04-2011 |
| 20110190548 | PROCESS FOR PURIFYING ETHANOL - Purifying and/or recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. Separation and purification processes of crude ethanol mixture are employed to allow recovery of ethanol and remove impurities. In addition, the process involves returning acetaldehyde separated from the crude ethanol product to the reactor. | 08-04-2011 |
| 20110190547 | PROCESS FOR RECOVERING ETHANOL - Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. Separation and purification processes of the crude ethanol products are employed to allow recovery of ethanol and remove impurities. | 08-04-2011 |
| 20110190532 | PROCESS FOR PRODUCING AN ESTER FEED STREAM FOR ESTERS PRODUCTION AND CO-PRODUCTION OF ETHANOL - Recovery of an ester feed stream, optionally with the recovery of ethanol, from a crude ethanol product obtained from the hydrogenation of acetic acid. Separation and purification processes of the crude ethanol products are employed to allow recovery of the ester feed stream and for integration of the ester feed stream with an esters production process. The composition of the ester feed stream may vary, but at least comprises ethyl acetate and ethanol. The ester feed stream may be fed to one or more locations within the esters production process depending on the composition of the ester feed stream. | 08-04-2011 |
| 20110190531 | PROCESS FOR PRODUCING AN ETHYL ACETATE SOLVENT AND CO-PRODUCTION OF ETHANOL - Recovery of an ethyl acetate solvent, optionally with the recovery of ethanol, from a crude product obtained from the hydrogenation of acetic acid. Separation and purification processes of the crude product are employed to allow recovery of the ethyl acetate solvent. | 08-04-2011 |
| 20110190117 | PROCESSES FOR MAKING TIN-CONTAINING CATALYSTS - A process for producing a catalyst comprising the steps of contacting a support with a mixed metal precursor comprising tin oxalate, a second metal precursor, a solubilizing agent such as ammonium oxalate, and water to form an impregnated support and heating the impregnated support under conditions effective to remove at least a weight majority of the water and reduce the tin from the tin oxalate and the second metal from the second metal precursor and thereby form the catalyst. | 08-04-2011 |
| 20110185630 | ETHANOL COMPOSITIONS - In one embodiment, the present invention is to an ethanol composition comprising at least 92 wt. % ethanol and from 95 wppm to 1,000 wppm isopropanol. | 08-04-2011 |
| 20110185628 | PROCESSES FOR PRODUCING DENATURED ETHANOL - In one embodiment, the invention is to a process for producing a denatured ethanol composition comprising the steps of hydrogenating an acetic acid feed in the presence of a catalyst to form a crude ethanol product comprising ethanol, and at least one denaturant and separating the crude ethanol product in one or more separation units into a denatured ethanol composition and one or more derivative streams. The denatured ethanol composition comprises from 0.01 wt. % to 40 wt % denaturant, based on the total weight of the denatured ethanol composition. | 08-04-2011 |
| 20110152066 | LAYERED COMPOSITION AND PROCESSES FOR PREPARING AND USING THE COMPOSITION - A layered composition which can be used in various processes has been developed. The composition comprises an inner core such as a cordierite core and an outer layer comprising a refractory inorganic oxide, a fibrous component and an inorganic binder. The refractory inorganic oxide layer can be alumina, zirconia, titania, etc. while the fibrous component can be titania fibers, silica fibers, carbon fibers, etc. The inorganic oxide binder can be alumina, silica, zirconia, etc. The layer can also contain catalytic metals such as gold and platinum plus other modifiers. The layered composition is prepared by coating the inner core with a slurry comprising the refractory inorganic oxide, fibrous component, an inorganic binder precursor and an organic binding agent such as polyvinyl alcohol. The composition can be used in various hydrocarbon conversion processes including production of vinyl acetate. | 06-23-2011 |
| 20110098513 | PROCESS FOR MAKING DIETHYL ETHER FROM ACETIC ACID - A process for producing of diethyl ether by hydrogenating acetic acid in the presence of a catalyst comprising a first metal on an acidic support, preferably a zeolite support. A preferred catalyst comprises platinum and tin on an acidic support. Selectivities to diethyl ether of at least 80% may be achieved. | 04-28-2011 |
| 20110098501 | PROCESSES FOR MAKING ETHANOL OR ETHYL ACETATE FROM ACETIC ACID USING BIMETALLIC CATALYSTS - A process for selective formation of ethanol and/or ethyl acetate from acetic acid by hydrogenating acetic acid in the presence of a Pt/Sn catalyst or a Re/Pd catalyst. The catalyst may further comprise a support modifier to improve selectivity for the desired product. | 04-28-2011 |
| 20110077428 | PROCESS FOR THE PRODUCTION OF ACETIC ACID - A process for the reduction and/or removal of permanganate reducing compounds formed by the carbonylation of methanol in the presence of a Group VIII metal carbonylation catalyst to produce acetic acid is disclosed. More specifically, a process for reducing and/or removing permanganate reducing compounds or their precursors from intermediate streams during the formation of acetic acid by said carbonylation processes is disclosed. In particular, a process in which a low boiling overhead vapor stream from a light ends column is subjected to a single distillation to obtain an overhead that is subjected to an extraction to selectively remove and/or reduce PRC's from the process is disclosed. | 03-31-2011 |
| 20110071312 | INTEGRATED PROCESS FOR THE PRODUCTION OF VINYL ACETATE FROM ACETIC ACID VIA ETHYLENE - This invention provides an integrated two stage economical process for the production of vinyl acetate monomer (VAM) from acetic acid in the vapor phase. First, acetic acid is selectively hydrogenated over a hydrogenating catalyst composition to form ethylene either in a single reactor zone or in a dual rector zone wherein the intermediate hydrogenated products are either dehydrated and/or cracked to form ethylene. In a subsequent second stage so formed ethylene is reacted with molecular oxygen and acetic acid over a suitable catalyst to form VAM. In an embodiment of this invention reaction of acetic acid and hydrogen over a hydrogenation catalyst and subsequent reaction over a dehydration catalyst selectively produces ethylene, which is further mixed with acetic acid and molecular oxygen and reacted over a supported palladium/gold/potassium catalyst. | 03-24-2011 |
| 20110004033 | Direct and Selective Production of Ethanol from Acetic Acid Utilizing a Platinum/ Tin Catalyst - A process for the selective production of ethanol by vapor phase reaction of acetic acid over a hydrogenating catalyst composition to form ethanol is disclosed and claimed. In an embodiment of this invention reaction of acetic acid and hydrogen over a platinum and tin supported on silica, graphite, calcium silicate or silica-alumina selectively produces ethanol in a vapor phase at a temperature of about 250° C. | 01-06-2011 |
| 20110004026 | Direct and Selective Production of Acetaldehyde from Acetic Acid Utilizing a Supported Metal Catalyst - A process for the selective production of acetaldehyde by vapor phase reaction of acetic acid over a hydrogenating catalyst composition to form acetaldehyde is disclosed and claimed. In an embodiment of this invention reaction of acetic acid and hydrogen over platinum and iron supported on silica selectively produces acetaldehyde in a vapor phase at a temperature of about 300° C. | 01-06-2011 |
| 20100286440 | Vinyl Ester production from Acetylene and Carboxylic Acid utilizing homogeneous catalyst - A process for the selective production of vinyl ester by the reaction of a carboxylic acid with acetylene with a homogeneous catalyst is disclosed and claimed. In a preferred embodiment of this invention, reaction of benzoic acid and acetylene in the presence of Group VIII metal complex catalyst at a temperature of about 50 to 180° C. results in quantitative yields of vinyl benzoate. | 11-11-2010 |
| 20100204512 | PROCESS FOR THE REDUCTION OF ALDEHYDE CONCENTRATION IN A TARGET STREAM - A process for reducing the aldehyde concentration in a target stream of a carbonylation process is disclosed. More specifically, a process for reducing the aldehyde concentration in an internal process stream or feed stream of a carbonylation process is disclosed. In particular, a process in which a target stream comprising a carbonylatable reactant and a first aldehyde concentration is subjected to a reaction comprising a supported catalyst that comprises at least one Group 8 to Group 11 metal at conditions sufficient to reduce the first aldehyde concentration to a second aldehyde concentration is disclosed. | 08-12-2010 |
| 20100197985 | PROCESSES FOR MAKING ETHANOL FROM ACETIC ACID - A process for selective formation of ethanol from acetic acid by hydrogenating acetic acid in the presence of first metal, a silicaceous support, and at least one support modifier. Preferably, the first metal is selected from the group consisting of copper, iron, cobalt, nickel, ruthenium, rhodium, palladium, osmium, iridium, platinum, titanium, zinc, chromium, rhenium, molybdenum, and tungsten. In addition the catalyst may comprise a second metal preferably selected from the group consisting of copper, molybdenum, tin, chromium, iron, cobalt, vanadium, tungsten, palladium, platinum, lanthanum, cerium, manganese, ruthenium, rhenium, gold, and nickel. | 08-05-2010 |
| 20100197959 | PROCESSES FOR MAKING ETHYL ACETATE FROM ACETIC ACID - A process for hydrogenating acetic acid to form of ethyl acetate and mixtures of ethyl acetate and ethanol. The hydrogenation is done in the presence of catalyst, preferably on a support that optionally includes a support modifier. | 08-05-2010 |
| 20100197486 | CATALYSTS FOR MAKING ETHYL ACETATE FROM ACETIC ACID - Catalysts and processes for making catalysts suitable for use in processes for hydrogenating acetic acid to form of ethyl acetate and mixtures of ethyl acetate and ethanol. In a first embodiment, the catalyst includes a high loading of nickel, palladium or platinum. In a second embodiment, the catalyst comprises a first metal selected from nickel and palladium and a second metal selected from tin and zinc. In a third embodiment, the catalyst comprises one or more metals on a support that has been modified with an acidic support modifier or a redox support modifier. | 08-05-2010 |
| 20100197485 | CATALYSTS FOR MAKING ETHANOL FROM ACETIC ACID - Catalysts and processes for forming catalysts for use in hydrogenating acetic acid to form ethanol. In one embodiment, the catalyst comprises a first metal, a silicaceous support, and at least one metasilicate support modifier. Preferably, the first metal is selected from the group consisting of copper, iron, cobalt, nickel, ruthenium, rhodium, palladium, osmium, iridium, platinum, titanium, zinc, chromium, rhenium, molybdenum, and tungsten. In addition the catalyst may comprise a second metal preferably selected from the group consisting of copper, molybdenum, tin, chromium, iron, cobalt, vanadium, tungsten, palladium, platinum, lanthanum, cerium, manganese, ruthenium, rhenium, gold, and nickel. | 08-05-2010 |
| 20090054295 | Chemical Delivery Product And Process For Making The Same - A chemical delivery product for delivering an oxidizing chemical into an aqueous system is disclosed. For instance, in one embodiment, a substrate containing an oxidizing chemical, such as trichloroisocyanuric acid, is coated with a water soluble polymer in order to prevent the oxidizing chemical from degrading prior to use and in order to facilitate handling. In accordance with the present disclosure, a neutralizing agent is contacted with the substrate in order to prevent the substrate from degrading the water soluble coating. In an alternative embodiment, a package is formed from a water soluble film forming composition combined with a base. | 02-26-2009 |
