Patents by Inventor Wayne J. Brtko
Wayne J. Brtko has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9102612Abstract: A process for producing acetic acid includes: obtaining hydrogen iodide in an acetic acid production system; and continually introducing a complexing agent into the system, wherein the complexing agent and hydrogen iodide interact to form a complex.Type: GrantFiled: June 25, 2012Date of Patent: August 11, 2015Assignee: LyondellBasell Acetyls, LLCInventors: Noel C. Hallinan, Brian A Salisbury, Wayne J Brtko, Michael E Fitzpatrick
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Publication number: 20130345474Abstract: A process for producing acetic acid includes: obtaining hydrogen iodide in an acetic acid production system; and continually introducing a complexing agent into the system, wherein the complexing agent and hydrogen iodide interact to form a complex.Type: ApplicationFiled: June 25, 2012Publication date: December 26, 2013Applicant: LYONDELL CHEMICAL TECHNOLOGY L.P.Inventors: Noel C. Hallinan, Brian A. Salisbury, Wayne J. Brtko, Michael E. Fitzpatrick
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Patent number: 8394987Abstract: The invention is a method of removing methyl iodide from an alkane distillation bottoms stream of an acetic acid production process. The method comprises contacting the alkane distillation bottoms stream in the liquid phase with a phosphine or a phosphine-functionalized support, and recovering a treated alkane distillation bottoms stream having a reduced methyl iodide content.Type: GrantFiled: June 17, 2010Date of Patent: March 12, 2013Assignee: Lyondell Chemical Technology, L.P.Inventors: Noel C. Hallinan, Brian A. Salisbury, Wayne J. Brtko
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Publication number: 20110313193Abstract: The invention is a method of purifying acetic acid containing 15 to 100 ppb iodide compounds. The method comprises contacting the acetic acid in the liquid phase with a phosphine-functionalized support, and recovering a purified acetic acid product having 10 ppb, or less, iodide compounds.Type: ApplicationFiled: June 17, 2010Publication date: December 22, 2011Inventors: Noel C. Hallinan, Brian A. Salisbury, Wayne J. Brtko
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Publication number: 20110313217Abstract: The invention is a method of removing methyl iodide from an alkane distillation bottoms stream of an acetic acid production process. The method comprises contacting the alkane distillation bottoms stream in the liquid phase with a phosphine or a phosphine-functionalized support, and recovering a treated alkane distillation bottoms stream having a reduced methyl iodide content.Type: ApplicationFiled: June 17, 2010Publication date: December 22, 2011Inventors: Noel C. Hallinan, Brian A. Salisbury, Wayne J. Brtko
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Patent number: 8076508Abstract: A process for producing acetic acid is disclosed. The process comprises carbonylating methanol to form a reaction mixture and flashing the reaction mixture to form a vapor stream and a liquid stream. The flash tank is equipped with a distillation column. The vapor stream comprises acetic acid and other volatile components but essentially no catalyst. The liquid stream comprises the catalyst and sufficient amounts of water and acetic acid to carry and stabilize the catalyst. The liquid stream is recycled to the carbonylation and the vapor stream is subjected to further separation to produce essentially pure acetic acid.Type: GrantFiled: December 8, 2008Date of Patent: December 13, 2011Assignee: Lyondell Chemical TechnologyInventors: Wayne J. Brtko, Michael E. Fitzpatrick
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Patent number: 8076512Abstract: A method for reducing aldehydes in an acetic acid production process is disclosed. The acetic acid is produced by reacting methanol and carbon monoxide in the presence of a carbonylation catalyst. The method comprises reacting an aldehyde-containing stream with an alcohol to form an acetal-containing stream. An acetal-enriched stream is separated from the acetal-containing stream and then hydrolyzed to form a hydrolysis mixture comprising the alcohol and the aldehydes. The alcohol is isolated from the hydrolysis mixture and used to react with the aldehyde-containing stream to form the acetal-containing stream. The invention reduces aldehydes in the acetic acid produced.Type: GrantFiled: August 27, 2009Date of Patent: December 13, 2011Assignees: Equistar Chemicals, L.P., Lyondell Chemical TechnologyInventors: Michael E. Fitzpatrick, Chuc Tu Nguyen, Wayne J. Brtko, Brian A. Salisbury
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Publication number: 20110269992Abstract: Disclosed is a process for the preparation of acetic acid and acetic anhydride. The process comprises carbonylating dimethyl carbonate. The carbonylation reaction for producing acetic acid is performed in the presence of water, while the carbonylation for producing acetic anhydride is performed essentially in the absence of water.Type: ApplicationFiled: April 29, 2010Publication date: November 3, 2011Inventors: Shao-Hua Guo, Wayne J. Brtko, Noel Hallinan, Brian A. Salisbury
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Publication number: 20110137075Abstract: A process for the production of vinyl acetate is disclosed. The process comprises reacting ethylene, acetic acid, and oxygen in the presence of a catalyst to produce a reaction mixture comprising vinyl acetate, ethylene, carbon dioxide, acetic acid, water and ethylene glycol diacetate. The reaction mixture is separated to a gas stream comprising ethylene, and carbon dioxide and a crude vinyl acetate stream comprising vinyl acetate, acetic acid, water and ethylene glycol diacetate. An ethylene glycol diacetate stream is isolated from the crude vinyl acetate stream and subjected to a reactive distillation to recover acetic acid.Type: ApplicationFiled: December 9, 2009Publication date: June 9, 2011Inventors: Wayne J. Brtko, Brian A. Salisbury, Noel Hallinan
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Publication number: 20110087047Abstract: A process for the production of vinyl acetate is disclosed. The process comprises reacting ethylene, acetic acid, and oxygen in the presence of a catalyst to produce a reaction mixture comprising vinyl acetate, ethylene, carbon dioxide, acetic acid and ethylene glycol diacetate. The reaction mixture is separated to a gas stream comprising ethylene, oxygen, and carbon dioxide and a crude vinyl acetate stream comprising vinyl acetate, acetic acid and ethylene glycol diacetate. An ethylene glycol diacetate stream, which comprises at least 50 wt % of ethylene glycol diacetate, is isolated from the crude vinyl acetate stream and hydrolyzed to recover acetic acid. Recovered acetic acid may be recycled to the acetoxidation reaction.Type: ApplicationFiled: October 9, 2009Publication date: April 14, 2011Inventors: Noel Hallinan, Wayne J. Brtko, Brian A. Salisbury
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Publication number: 20110054213Abstract: A method for reducing aldehydes in an acetic acid production process is disclosed. The acetic acid is produced by reacting methanol and carbon monoxide in the presence of a carbonylation catalyst. The method comprises reacting an aldehyde-containing stream with an alcohol to form an acetal-containing stream. An acetal-enriched stream is separated from the acetal-containing stream and then hydrolyzed to form a hydrolysis mixture comprising the alcohol and the aldehydes. The alcohol is isolated from the hydrolysis mixture and used to react with the aldehyde-containing stream to form the acetal-containing stream. The invention reduces aldehydes in the acetic acid produced.Type: ApplicationFiled: August 27, 2009Publication date: March 3, 2011Inventors: Michael E. Fitzpatrick, Chuc Tu Nguyen, Wayne J. Brtko, Brian A. Salisbury
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Patent number: 7790920Abstract: A process for producing acetic acid is disclosed. The process comprises carbonylating methanol to form a reaction mixture comprising a catalyst, catalyst stabilizer, acetic acid, methanol, methyl iodide, methyl acetate, water, and carbon monoxide and introducing at least a portion of the reaction mixture to a distillation column to separate into a bottom steam comprising the catalyst and catalyst stabilizer, a sidedraw stream comprising acetic acid and water, and an overhead stream comprising methanol, methyl acetate, methyl iodide, and water. The process of the invention eliminates the use of flash tank.Type: GrantFiled: September 11, 2008Date of Patent: September 7, 2010Assignee: Lyondell Chemical Technology, L.P.Inventors: Wayne J. Brtko, Michael E. Fitzpatrick, Brian A. Salisbury
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Publication number: 20100145097Abstract: A process for producing acetic acid is disclosed. The process comprises carbonylating methanol to form a reaction mixture and flashing the reaction mixture to form a vapor stream and a liquid stream. The flash tank is equipped with a distillation column. The vapor stream comprises acetic acid and other volatile components but essentially no catalyst. The liquid stream comprises the catalyst and sufficient amounts of water and acetic acid to carry and stabilize the catalyst. The liquid stream is recycled to the carbonylation and the vapor stream is subjected to further separation to produce essentially pure acetic acid.Type: ApplicationFiled: December 8, 2008Publication date: June 10, 2010Inventors: Wayne J. Brtko, Michael E. Fitzpatrick
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Publication number: 20100063319Abstract: A process for producing acetic acid is disclosed. The process comprises carbonylating methanol to form a reaction mixture comprising a catalyst, catalyst stabilizer, acetic acid, methanol, methyl iodide, methyl acetate, water, and carbon monoxide and introducing at least a portion of the reaction mixture to a distillation column to separate into a bottom steam comprising the catalyst and catalyst stabilizer, a sidedraw stream comprising acetic acid and water, and an overhead stream comprising methanol, methyl acetate, methyl iodide, and water. The process of the invention eliminates the use of flash tank.Type: ApplicationFiled: September 11, 2008Publication date: March 11, 2010Inventors: Wayne J. Brtko, Michael E. Fitzpatrick, Brian A. Salisbury
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Patent number: 7485749Abstract: A method for removing aldehyde impurities from an acetic acid stream is disclosed. The method comprises reacting aldehyde impurities with a hydroxyl compound in a drying distillation column or a combined column to form corresponding acetals. The acetals are subsequently removed as heavy impurities from acetic acid by distillation.Type: GrantFiled: August 22, 2006Date of Patent: February 3, 2009Assignees: Lyondell Chemical Technology, L.P., Millennium Petrochemicals inc.Inventors: Gary A. Sawyer, Wayne J. Brtko, Ronnie M. Hanes, Brian A. Salisbury
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Publication number: 20080051601Abstract: A method for removing aldehyde impurities from an acetic acid stream is disclosed. The method comprises reacting aldehyde impurities with a hydroxyl compound in a drying distillation column or a combined column to form corresponding acetals. The acetals are subsequently removed as heavy impurities from acetic acid by distillation.Type: ApplicationFiled: August 22, 2006Publication date: February 28, 2008Inventors: Gary A. Sawyer, Wayne J. Brtko, Ronnie M. Hanes, Brian A. Salisbury