Patent application number | Description | Published |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
20130053605 | 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. | 02-28-2013 |
20130085294 | PROCESSES FOR PRODUCING ACRYLIC ACIDS AND ACRYLATES - In one embodiment, the invention is to a process for producing an acrylate product. The process comprises the step of providing a crude product stream comprising the acrylate product and an alkylenating agent. The process further comprises the step of separating at least a portion of the crude product stream to form an alkylenating agent stream and an intermediate product stream. The alkylenating agent stream comprises at least 1 wt % alkylenating agent and the intermediate product stream comprises acrylate product. | 04-04-2013 |
20130085295 | PROCESSES FOR PRODUCING ACRYLIC ACIDS AND ACRYLATES - In one embodiment, the invention is to a process for producing an acrylate product. The process comprises the step of reacting an alcohol and oxygen in a reactor to produce a high temperature alkylenating agent stream comprising an alkylenating agent. The process further comprises the step of contacting an alkanoic acid with at least a portion of the high temperature alkylenating agent stream under conditions effective to form a crude product stream comprising acrylate product and alkylenating agent. The process further comprises the step of separating at least a portion of the crude product stream to form at least one alkylenating agent stream and at least one purified acrylate product stream comprising acrylate product. | 04-04-2013 |
20130085297 | Processes for Producing Acrylic Acids and Acrylates with Pre- and Post-Reactor Dilution - In one embodiment, the invention is to a process for producing an acrylate product. The process comprises the step of reacting a reaction mixture comprising a first diluent, an alkylenating agent and an alkanoic acid to form a crude acrylate product comprising alkylenating agent and acrylate product. The crude acrylate product is then diluted with a second diluted to form a diluted crude acrylate stream. The diluents are then removed from the diluted crude acrylate stream to form a liquid acrylate stream. The process further comprises the step of separating at least a portion of the liquid acrylate stream to form an alkylenating agent stream and an intermediate product stream. The alkylenating agent stream comprises at least 1 wt. % alkylenating agent and the intermediate product stream comprises acrylate product. | 04-04-2013 |
20130085298 | Processes for Producing Acrylic Acids and Acrylates with Liquid Product Dilution - In one embodiment, the invention is to a process for producing an acrylate product. The process comprises the step of providing a crude acrylate product comprising the acrylate product and an alkylenating agent. The process further comprises the steps of removing inert and/or reactive gases from the crude product to form a liquid acrylate stream, diluting the liquid acrylate stream with a diluent to form a diluted liquid acrylate stream, and then separating at least a portion of the diluted liquid acrylate stream to form an alkylenating agent stream and an intermediate product stream. The alkylenating agent stream comprises at least 1 wt. % alkylenating agent and the intermediate product stream comprises acrylate product. | 04-04-2013 |
20130085299 | Processes for Producing Acrylic Acids and Acrylate with Diluted Crude Acrylate Stream - In one embodiment, the invention is to a process for producing an acrylate product. The process comprises the step of providing a crude acrylate product comprising the acrylate product and an alkylenating agent. The process further comprises the step of diluting the crude acrylate product with a diluent to form a diluted crude acrylate stream and recovering acrylate product from the diluted crude acrylate stream. | 04-04-2013 |
20130085302 | Processes for Producing Acrylic Acids and Acrylates - In one embodiment, the invention is to a process for producing an acrylate product. The process comprises the step of providing a crude product stream comprising the acrylate product and an alkylenating agent. The process further comprises the step of separating at least a portion of the crude product stream to form an alkylenating agent stream and an intermediate product stream. The process further comprises the step of recovering high purity acrylate product using precipitation. The alkylenating agent stream comprises at least 1 wt % alkylenating agent and the intermediate product stream comprises acrylate product. | 04-04-2013 |
20130158295 | Processes For The Production of Acrylic Acids and Acrylates - In one embodiment, the invention is to a process for producing an acrylate product. The process comprises the step of dehydrating a crude alkylenating agent stream to form a dehydrated alkylenating agent stream and a water stream. The process further comprises reacting acetic acid with at least a portion of the dehydrated alkylenating agent stream to form a crude acrylate product stream comprising acrylate product and alkylenating agent stream. The dehydrating of the crude alkylenating stream is accomplished using at least one evaporator or at least one distillation column. | 06-20-2013 |
20130172614 | 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. | 07-04-2013 |
20130245311 | Catalyst for Producing Acrylic Acids and Acrylates - The invention is to a process for producing an acrylate product. The process includes the steps of contacting an alkanoic acid and an alkylenating agent over a catalyst composition under conditions effective to produce the acrylate product. The catalyst composition comprises vanadium, titanium and tungsten. Preferably, the catalyst comprises vanadium to tungsten at a molar ratio of at least 0.02:1, in an active phase. | 09-19-2013 |
20130245312 | Catalyst for Producing Acrylic Acids and Acrylates - The invention is to a process for producing an acrylate product. The process includes the steps of contacting an alkanoic acid and an alkylenating agent over a catalyst composition under conditions effective to produce the acrylate product. The catalyst composition comprises vanadium, bismuth and titanium. Preferably, the catalyst comprises 0.3 wt % to 30 wt % vanadium, 0.1 wt % to 69 wt % bismuth and 0.1 wt % to 61 wt % tungsten, in an active phase. | 09-19-2013 |
20130267736 | Processes for Producing Acrylic Acids and Acrylates with Diluted Reaction Mixture and By-Product Recycle - In one embodiment, the invention is to a process for producing an acrylate product. The process comprises the step of providing a diluted crude acrylate stream comprising the acrylate product and an alkylenating agent. The process further comprises the step of separating at least a portion of the diluted crude acrylate stream to form an alkylenating agent stream and an intermediate product stream. The alkylenating agent stream comprises at least 1 wt. % alkylenating agent and the intermediate product stream comprises acrylate product. | 10-10-2013 |
20130317254 | Process for Producing Acrylic Acids and Acrylates - In one embodiment, the invention is to a process for producing an acrylate product. The process comprises the step of providing a crude product stream comprising the acrylate product and an alkylenating agent. The process further comprises the step of separating at least a portion of the crude product stream into an intermediate acrylate product stream and an alkylenating stream. The process further comprises separating at least a portion of the intermediate acrylate product stream by azeotropic distillation in the presences of an entrainer to form a stream containing acrylate product and a stream containing entrainer. | 11-28-2013 |
20140046100 | 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. | 02-13-2014 |
20140066649 | Process for Producing Vinyl Acetate - The present invention relates to a process for forming vinyl acetate. The process comprises the step of providing a reaction mixture having an initial heat capacity. The reaction mixture comprises acetic acid, oxygen, ethylene, and optionally water. The process further comprises the step of adding to the reaction mixture at least one heat capacity modifier to form an increased heat capacity reaction mixture. The process further comprises the step of contacting the acetic acid, oxygen, and ethylene over a catalyst under conditions effective to form a crude vinyl acetate product. The crude vinyl acetate product comprises vinyl acetate and water. | 03-06-2014 |
20140073812 | Process for Making Acrylic Acid by Integrating Acetic Acid Feed Stream from Carbonylation Process - In one embodiment, the invention is to a process for producing acrylic acid, comprising the step of providing from a distillation column in a carbonylation process a purified acetic acid stream comprising at least 0.15 wt % water. The process further comprises the step of condensation acetic acid of the purified acetic acid stream and an alkylenating agent in the presence of a catalyst and under conditions effective to form a crude acrylate product comprising acrylic acid and water. Acrylic acid is recovered from the crude acrylate product. | 03-13-2014 |
20140073813 | Heat Integration of Carbonylation and Aldol Condensation Reaction Processes - In one embodiment, the invention is to a process for producing an acrylic acid, comprising the step of reacting, in a carbonylation system, carbon monoxide with at least one reactant in a reaction medium under conditions effective to produce a crude alkanoic acid stream comprising alkanoic acid. Preferably, the reaction is an exothermic carbonylation reaction. The process further comprises the step of removing from the carbonylation system at least a portion of heat generated by the carbonylation reaction and transferring a portion of the heat to a heat transfer system that utilizes at least one steam condensate stream. The process further comprises the step of conveying at least a portion of the heat transferred to the heat transfer system of the condensation reaction zone and/or the condensation separation zone. | 03-13-2014 |
20140121409 | Processes for the Production of Acrylic Acids and Acrylates Using Multiple Reactors - In one embodiment, the present invention relates to a process for producing an acrylate product comprising the step of providing a reaction system comprising at least one reaction zone and at least one regeneration zone. Each reaction zone and regeneration zone has a size and comprises a catalyst. A ratio of the combined size of the at least one reaction zone to the combined size of the at least one regeneration zone ranges between 1:1 to 6:1. The process further comprises the step of reacting, in the at least one reaction zone, a reaction mixture comprising an alkanoic acid and an alkylenating agent to form a crude acrylate product. The process further comprises the step of regenerating, in the at least one regeneration zone, the respective catalyst. The process further comprises the step of separating at least a portion of the crude acrylate products to form a purified acrylate product. | 05-01-2014 |
20140121410 | Processes for Regenerating Catalyst for Producing Acrylic Acids and Acrylates - In one embodiment, the invention is to a process for producing an acrylate product. The process comprises the step of reacting an alkanoic acid and an alkylenating agent over a catalyst to produce a crude acrylate product stream, and to product a used catalyst. The used catalyst may then be contacted with a regenerating stream to form a regenerated catalyst. Alkanoic acid and alkylenating agent may then be reacted over the regenerated catalyst to product additional crude acrylate product stream. | 05-01-2014 |
20140128636 | Processes for Producing Acrylic Acids and Acrylates - In one embodiment, the invention is to a process for producing an acrylate product. The process comprises the step of providing a crude product stream comprising the acrylate product and an alkylenating agent. The process further comprises the step of separating at least a portion of the crude product stream to form an alkylenating agent stream and an intermediate product stream. The alkylenating agent stream comprises at least 1 wt % alkylenating agent and the intermediate product stream comprises acrylate product. | 05-08-2014 |
20140142349 | PROCESS FOR PRODUCING ETHANOL FROM METHYL ACETATE - The present invention relates to a process for producing ethanol by methyl acetate hydrogenolysis. The process comprises the step of reacting carbon monoxide and methanol in a reaction medium to form a reaction solution that comprises acetic acid and from 0.5 to 25 wt. % methyl acetate. The process further comprises the step of esterifying the acetic acid and feeding the methyl acetate to a distillation column to remove alkyl halides. The process further comprises the steps of reacting the methyl acetate stream that does not contain alkyl halides and hydrogen in the presence of a second catalyst to form an alcohol product that comprises ethanol and/or methanol. | 05-22-2014 |