Patents by Inventor Thomas Bartos
Thomas Bartos 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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Publication number: 20210363091Abstract: Processes for manufacturing purified aromatic carboxylic carboxylic acids includes: generating high-pressure steam (402) from boiler feed water supplied to a boiler (404); heating a crude aromatic carboxylic acid using the high-pressure steam (402), whereby the high pressure steam (402) is condensed to form a high-pressure condensate (426); and purifying the crude aromatic carboxylic acid to form a purified aromatic carboxylic acid. The boiler feed water includes at least a portion of the high-pressure condensate (426) and makeup boiler feed water from at least one additional source. The recycled high-pressure condensate (426) is pre-heated with an electric heater (480) using electricity generated in an off-gas treatment zone (350).Type: ApplicationFiled: August 1, 2017Publication date: November 25, 2021Inventors: Frederick Clark, Thomas Bartos, Xiaolin Liang
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Patent number: 10857490Abstract: A process for the separation of the components of a solid/liquid mixture. The process Includes the use of a rotary pressure filter apparatus having improved capacity.Type: GrantFiled: August 10, 2015Date of Patent: December 8, 2020Assignee: BP Corporation North America Inc.Inventors: Thomas Bartos, Anders Bitsch-Larsen, Timothy Keyes
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Patent number: 10577301Abstract: Processes for recovering a purified aromatic carboxylic acid include contacting a crude aromatic carboxylic acid with hydrogen in the presence of a catalyst in a hydrogenation reactor to form a purified aromatic carboxylic acid; crystallizing the purified aromatic carboxylic acid to form a solid/liquid mixture comprising purified aromatic carboxylic acid solids; filtering the solid/liquid mixture in a rotary pressure filter apparatus to remove a liquid filtrate, washing the solid/liquid mixture in the rotary pressure apparatus with a wash fluid to form a washed solid/liquid mixture, and drying the washed solid/liquid mixture in the rotary pressure apparatus with an inert gas to form a filter cake comprising purified aromatic carboxylic acid solids and a wet gas stream; withdrawing the wet gas stream from the rotary pressure filter apparatus while maintaining the wet gas stream at a pressure above ambient; and recovering the purified aromatic carboxylic acid solids from the filter cake.Type: GrantFiled: November 28, 2017Date of Patent: March 3, 2020Assignee: BP Corporation North America Inc.Inventors: Timothy H. Keyes, Thomas Bartos
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Patent number: 10414712Abstract: Processes for manufacturing a purified aromatic carboxylic acid include oxidizing a substituted aromatic compound in a reaction zone to form a crude aromatic carboxylic acid and a gaseous stream; heating the crude aromatic carboxylic acid in a pre-heating zone, contacting the crude aromatic carboxylic acid with hydrogen in the presence of a catalyst in a hydrogenation reactor to form a purified aromatic carboxylic acid, crystallizing the purified aromatic carboxylic acid in a crystallization zone to form a slurry stream comprising solid purified aromatic carboxylic acid and a vapor stream. At least a portion of the vapor stream is directed to the pre-heating zone and at least a portion of the vapor stream from the pre-heating zone is vented to the off-gas treatment zone in order to achieve energy savings.Type: GrantFiled: November 28, 2017Date of Patent: September 17, 2019Assignee: BP Corporation North America Inc.Inventors: Thomas Bartos, Kathryn Buckalew
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Patent number: 10399921Abstract: Processes for manufacturing a purified aromatic carboxylic acid include contacting crude aromatic carboxylic acid with hydrogen in the presence of a catalyst in a hydrogenation reactor to form a purified aromatic carboxylic acid; separating vapor effluent from the purified aromatic carboxylic acid; scrubbing the vapor effluent to form a scrubber effluent; treating the scrubber effluent vapor to form a gaseous treated scrubber effluent and a liquid treated scrubber effluent; and removing at least a portion of organic impurities from the liquid treated scrubber effluent.Type: GrantFiled: November 28, 2017Date of Patent: September 3, 2019Assignee: BP Corporation North America Inc.Inventors: Thomas Bartos, Allen Nelson, Anders Larsen-Bitsch
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Publication number: 20180312460Abstract: Processes for recovering a purified aromatic carboxylic acid include contacting a crude aromatic carboxylic acid with hydrogen in the presence of a catalyst in a hydrogenation reactor to form a purified aromatic carboxylic acid; crystallizing the purified aromatic carboxylic acid to form a solid/liquid mixture comprising purified aromatic carboxylic acid solids; filtering the solid/liquid mixture in a rotary pressure filter apparatus to remove a liquid filtrate, washing the solid/liquid mixture in the rotary pressure apparatus with a wash fluid to form a washed solid/liquid mixture, and drying the washed solid/liquid mixture in the rotary pressure apparatus with an inert gas to form a filter cake comprising purified aromatic carboxylic acid solids and a wet gas stream; withdrawing the wet gas stream from the rotary pressure filter apparatus while maintaining the wet gas stream at a pressure above ambient; and recovering the purified aromatic carboxylic acid solids from the filter cake.Type: ApplicationFiled: November 28, 2017Publication date: November 1, 2018Applicant: BP Corporation North America Inc.Inventors: Timothy H. Keyes, Thomas Bartos
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Publication number: 20180207559Abstract: A process for the separation of the components of a solid/liquid mixture. The process Includes the use of a rotary pressure filter apparatus having improved capacity.Type: ApplicationFiled: August 10, 2015Publication date: July 26, 2018Applicant: BP Corporation North American Inc.Inventors: Thomas Bartos, Anders Larsen-Bitsch, Timothy Keyes
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Publication number: 20180186718Abstract: Processes for manufacturing a purified aromatic carboxylic acid include contacting crude aromatic carboxylic acid with hydrogen in the presence of a catalyst in a hydrogenation reactor to form a purified aromatic carboxylic acid; separating vapor effluent from the purified aromatic carboxylic acid; scrubbing the vapor effluent to form a scrubber effluent; treating the scrubber effluent vapor to form a gaseous treated scrubber effluent and a liquid treated scrubber effluent; and removing at least a portion of organic impurities from the liquid treated scrubber effluent.Type: ApplicationFiled: November 28, 2017Publication date: July 5, 2018Applicant: BP Corporation North America Inc.Inventors: Thomas Bartos, Allen Nelson, Anders Larsen-Bitsch
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Publication number: 20180186719Abstract: Processes for manufacturing a purified aromatic carboxylic acid include oxidizing a substituted aromatic compound in a reaction zone to form a crude aromatic carboxylic acid and a gaseous stream; heating the crude aromatic carboxylic acid in a pre-heating zone, contacting the crude aromatic carboxylic acid with hydrogen in the presence of a catalyst in a hydrogenation reactor to form a purified aromatic carboxylic acid, crystallizing the purified aromatic carboxylic acid in a crystallization zone to form a slurry stream comprising solid purified aromatic carboxylic acid and a vapor stream. At least a portion of the vapor stream is directed to the pre-heating zone and at least a portion of the vapor stream from the pre-heating zone is vented to the off-gas treatment zone in order to achieve energy savings.Type: ApplicationFiled: November 28, 2017Publication date: July 5, 2018Applicant: BP Corporation North America Inc.Inventors: Thomas Bartos, Kathryn Buckalew
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Publication number: 20160326335Abstract: A method for forming an aromatic diacid and/or an aromatic diacid precursor from a polyester-containing feedstock. The method comprises contacting the polyester-containing feedstock with water or an alcohol to depolymerize the polyester and thereby form an aromatic diacid and/or an aromatic diacid precursor, wherein the polyester-containing feedstock comprises about 80 wt % or more polyester and about 1 wt % or more of at least one secondary material, and wherein the at least one secondary material is not polyester.Type: ApplicationFiled: December 30, 2014Publication date: November 10, 2016Applicant: BP Corporation North America Inc.Inventors: Gregory E. Schmidt, Thomas Bartos, Ajay Joshi, Anders Larsen-Bitsch, Peter Metelski, Daniel Leonardi
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Patent number: 9486722Abstract: A process for recovering a solid product from a solid/liquid mixture. The process includes filtering a solid/liquid mixture to form a filter cake in a first solid-liquid separation zone. The filter cake comprises the solid product. The first solid-liquid separation zone comprises a rotary pressure filter apparatus configured to apply a pressure differential across at least one filter member, and the filter cake is formed on the filter member. The filter cake is then washed with fluid in the rotary filter apparatus to form a wet filter cake. The wet filter cake is then transferred to a reslurrying zone. The wet filter is mixed with a reslurrying fluid to form a slurry, and the slurry is transferred to a second solid/liquid separation zone, where the solid product is separated from the slurry.Type: GrantFiled: December 30, 2014Date of Patent: November 8, 2016Assignee: BP Corporation North America Inc.Inventors: Timothy Keyes, Thomas Bartos
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Publication number: 20150182890Abstract: A process for recovering a solid product from a solid/liquid mixture. The process includes filtering a solid/liquid mixture to form a filter cake in a first solid-liquid separation zone. The filter cake comprises the solid product. The first solid-liquid separation zone comprises a rotary pressure filter apparatus configured to apply a pressure differential across at least one filter member, and the filter cake is formed on the filter member. The filter cake is then washed with fluid in the rotary filter apparatus to form a wet filter cake. The wet filter cake is then transferred to a reslurrying zone. The wet filter is mixed with a reslurrying fluid to form a slurry, and the slurry is transferred to a second solid/liquid separation zone, where the solid product is separated from the slurry.Type: ApplicationFiled: December 30, 2014Publication date: July 2, 2015Applicant: BP Corporation North America Inc.Inventors: Timothy Keyes, Thomas Bartos
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Publication number: 20080097118Abstract: Energy is recovered during the production of aromatic carboxylic acids by liquid phase oxidation of aromatic hydrocarbons by performing a high efficiency separation on the reactor overhead vapor to form a high pressure gaseous overhead stream comprising water and organic impurities; recovering heat energy from the high pressure gaseous overhead stream by exchanging heat with a suitable heat sink material such that a condensate comprising from about 20 wt % to about 60 wt % of the water present in the high pressure gaseous overhead stream is formed and a high pressure offgas is formed; and recovering energy in the form of work from the high pressure offgas. Preferably such work is recovered using isentropic means for energy recovery, for example an expander. Apparatus for such process is also provided.Type: ApplicationFiled: March 20, 2006Publication date: April 24, 2008Applicant: BP Corporation North America Inc.Inventors: Thomas Bartos, Linus Leung