Patents by Inventor Thomas M. Bartos
Thomas M. 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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Patent number: 10427073Abstract: A rotary pressure filter apparatus, a sealing device for use with the rotary pressure filter apparatus, and a process of using the apparatus. The rotary pressure filter apparatus is designed to treat a solid-liquid mixture under pressure in successive work zones. A rotary drum moves compartments containing the solid-liquid mixture through the successive zones. The zones are separated by a sealing member, which is designed to reduce pressure fluctuations as the compartments enter a successive zone.Type: GrantFiled: July 23, 2015Date of Patent: October 1, 2019Assignee: BP Corporation North America Inc.Inventors: Anders Bitsch-Larsen, Timothy H. Keyes, Thomas M. Bartos
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Publication number: 20180207558Abstract: A rotary pressure filter apparatus, a sealing device for use with the rotary pressure filter apparatus, and a process of using the apparatus. The rotary pressure filter apparatus is designed to treat a solid-liquid mixture under pressure in successive work zones. A rotary drum moves compartments containing the solid-liquid mixture through the successive zones. The zones are separated by a sealing member, which is designed to reduce pressure fluctuations as the compartments enter a successive zone.Type: ApplicationFiled: July 23, 2015Publication date: July 26, 2018Applicant: BP Corporation North American Inc.Inventors: Anders Bitsch-Larsen, Timothy H Keyes, Thomas M Bartos
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Patent number: 9422219Abstract: Processes for manufacturing a purified aromatic carboxylic acid include heating a purification reaction mixture in a pre-heating zone, the purification reaction mixture comprising a crude aromatic carboxylic acid and a solvent, and purifying the crude aromatic carboxylic acid in the purification reaction mixture to form a purified aromatic carboxylic acid product. One or more operations are maintained at a pressure above ambient in order to achieve energy savings.Type: GrantFiled: December 30, 2014Date of Patent: August 23, 2016Assignee: BP Corporation North America Inc.Inventor: Thomas M. Bartos
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Patent number: 9315441Abstract: Processes for manufacturing purified aromatic carboxylic acids include: generating high-pressure steam from boiler feed water supplied to a boiler; heating a crude aromatic carboxylic acid using the high-pressure steam, whereby the high pressure steam is condensed to form a high-pressure condensate; 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 and makeup boiler feed water from at least one additional source.Type: GrantFiled: December 30, 2014Date of Patent: April 19, 2016Assignee: BP Corporation North America Inc.Inventors: Fred T. Clark, Thomas M. Bartos, Allen Nelson
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Patent number: 9260370Abstract: Processes for manufacturing purified aromatic carboxylic acids include: oxidizing a substituted aromatic compound in a reaction zone to form a crude aromatic carboxylic add; transferring a vapor phase from the reaction zone to a separation zone, the vapor phase containing water and a plurality of organic compounds including at least one oxidation by-product; withdrawing an organic-depleted water stream from the separation zone and combining at least a portion of the organic-depleted water stream with at least a portion of the crude aromatic carboxylic acid in a purification zone; and purifying the crude aromatic carboxylic acid in the purification zone.Type: GrantFiled: December 30, 2014Date of Patent: February 16, 2016Assignee: BP Corporation North America Inc.Inventor: Thomas M. Bartos
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Publication number: 20150183713Abstract: Processes for manufacturing purified aromatic carboxylic acids include: oxidizing a substituted aromatic compound in a reaction zone to form a crude aromatic carboxylic add; transferring a vapor phase from the reaction zone to a separation zone, the vapor phase containing water and a plurality of organic compounds including at least one oxidation by-product; withdrawing an organic-depleted water stream from the separation zone and combining at least a portion of the organic-depleted water stream with at least a portion of the crude aromatic carboxylic acid in a purification zone; and purifying the crude aromatic carboxylic acid in the purification zone.Type: ApplicationFiled: December 30, 2014Publication date: July 2, 2015Applicant: BP Corporation North America Inc.Inventor: Thomas M. Bartos
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Publication number: 20150183710Abstract: Processes for manufacturing purified aromatic carboxylic acids include: generating high-pressure steam from boiler feed water supplied to a boiler; heating a crude aromatic carboxylic acid using the high-pressure steam, whereby the high pressure steam is condensed to form a high-pressure condensate; 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 and makeup boiler feed water from at least one additional source.Type: ApplicationFiled: December 30, 2014Publication date: July 2, 2015Applicant: BP Corporation North America Inc.Inventors: Fred T. Clark, Thomas M. Bartos, Allen Nelson
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Publication number: 20150183709Abstract: Processes for manufacturing a purified aromatic carboxylic acid include heating a purification reaction mixture in a pre-heating zone, the purification reaction mixture comprising a crude aromatic carboxylic acid and a solvent, and purifying the crude aromatic carboxylic acid in the purification reaction mixture to form a purified aromatic carboxylic acid product. One or more operations are maintained at a pressure above ambient in order to achieve energy savings.Type: ApplicationFiled: December 30, 2014Publication date: July 2, 2015Applicant: BP Corporation North America Inc.Inventor: Thomas M. Bartos
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Patent number: 8779185Abstract: A process and apparatus for manufacture of aromatic carboxylic acids comprises a liquid phase oxidation of aromatic hydrocarbon feed materials and treatment of a high pressure off-gas from the liquid phase oxidation to separate water and reaction solvent and purification of impure aromatic carboxylic acid products wherein a purification liquid includes water from off-gas treatment.Type: GrantFiled: May 7, 2012Date of Patent: July 15, 2014Assignee: BP Corporation North America Inc.Inventor: Thomas M. Bartos
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Publication number: 20120220800Abstract: A process and apparatus for manufacture of aromatic carboxylic acids comprises a liquid phase oxidation of aromatic hydrocarbon feed materials and treatment of a high pressure off-gas from the liquid phase oxidation to separate water and reaction solvent and purification of impure aromatic carboxylic acid products wherein a purification liquid includes water from off-gas treatment.Type: ApplicationFiled: May 7, 2012Publication date: August 30, 2012Applicant: BP Corporation North America Inc.Inventor: Thomas M. Bartos
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Publication number: 20120178964Abstract: This invention provides a catalyst and the use thereof and a process for hydrogenating carboxyaryl aldehydes with selectivity to hydroxyalkylaryl monocarboxylic acids. The catalyst comprises iridium.Type: ApplicationFiled: September 20, 2010Publication date: July 12, 2012Applicant: BP CORPORATION NORTH AMERICA INCInventors: Philip O. Nubel, Thomas M. Bartos, Sameer Talreja, Stephen P. Brugge
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Patent number: 8173834Abstract: A process and apparatus for manufacture of aromatic carboxylic acids comprises a liquid phase oxidation of aromatic hydrocarbon feed materials and treatment of a high pressure off-gas from the liquid phase oxidation to separate water and reaction solvent and purification of impure aromatic carboxylic acid products wherein a purification liquid includes water from off-gas treatment.Type: GrantFiled: March 20, 2006Date of Patent: May 8, 2012Assignee: BP Corporation North America Inc.Inventor: Thomas M. Bartos
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Patent number: 7935845Abstract: A process and apparatus for manufacture of aromatic carboxylic acids comprises a liquid phase oxidation of aromatic hydrocarbon feed materials and treatment of a high pressure off-gas from the liquid phase oxidation to separate water and reaction solvent and preferentially apportion liquid phase oxidation by-product species between gas and liquid phase resulting from separation. Processes for making pure forms of aromatic carboxylic acid also are included.Type: GrantFiled: March 20, 2006Date of Patent: May 3, 2011Assignee: BP Corporation North America Inc.Inventors: Thomas M. Bartos, Linus K. Leung
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Patent number: 7935844Abstract: 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 off-gas is formed; and recovering energy in the form of work from the high pressure off-gas. Preferably such work is recovered using isentropic means for energy recovery, for example an expander. Apparatus for such process is also provided.Type: GrantFiled: March 20, 2006Date of Patent: May 3, 2011Assignee: BP Corporation North America Inc.Inventor: Thomas M. Bartos
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Publication number: 20090234156Abstract: A process and apparatus for manufacture of aromatic carboxylic acids comprises a liquid phase oxidation of aromatic hydrocarbon feed materials and treatment of a high pressure off-gas from the liquid phase oxidation to separate water and reaction solvent and purification of impure aromatic carboxylic acid products wherein a purification liquid includes water from off- gas treatment.Type: ApplicationFiled: March 20, 2006Publication date: September 17, 2009Applicant: BP Corporation North America Inc.Inventor: Thomas M. Bartos
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Publication number: 20080194865Abstract: 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 off-gas is formed; and recovering energy in the form of work from the high pressure off-gas. 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: August 14, 2008Applicant: BP Corporation North America Inc.Inventor: Thomas M. Bartos
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Patent number: 6562997Abstract: Processes for the production of aromatic carboxylic acids is disclosed. The aromatic acids are produced by the liquid phase oxidation of a suitable acid precursor in a reaction medium comprising benzoic acid. According to one embodiment, the oxidation is carried out under plug-flow reaction conditions in a plug-flow reactor. The plug-flow conditions can be achieved by the use of a series of continuous stirred tank reactors. In another embodiment, the oxidation is carried out in two continuous stirred tank reactors fluidly connected in series. The preferred oxidation products are terephthalic acid, isophthalic acid, trimellitic acid, 2,6-naphthalene dicarboxylic acid, 1,5-napthalene dicarboxylic acid, 2,7-naphthalene dicarboxylic acid and phthalic acid.Type: GrantFiled: January 19, 2001Date of Patent: May 13, 2003Assignee: BP Corporation North America Inc.Inventors: David L. Sikkenga, Alpen K. Pandya, Ian C. Zaenger, Kenneth J. Abrams, Thomas M. Bartos
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Publication number: 20010041811Abstract: Processes for the production of aromatic carboxylic acids is disclosed. The aromatic acids are produced by the liquid phase oxidation of a suitable acid precursor in a reaction medium comprising benzoic acid. According to one embodiment, the oxidation is carried out under plug-flow reaction conditions in a plug-flow reactor. The plug-flow conditions can be achieved by the use of a series of continuous stirred tank reactors. In another embodiment, the oxidation is carried out in two continuous stirred tank reactors fluidly connected in series. The preferred oxidation products are terephthalic acid, isophthalic acid, trimellitic acid, 2,6-naphthalene dicarboxylic acid, 1,5-napthalene dicarboxylic acid, 2,7-naphthalene dicarboxylic acid and phthalic acid.Type: ApplicationFiled: January 19, 2001Publication date: November 15, 2001Inventors: David L. Sikkenga, Alpen K. Pandya, Ian C. Zaenger, Kenneth J. Abrams, Thomas M. Bartos
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Patent number: 6194609Abstract: Crystallization of a crystallizable material is achieved through heat exchange in a plate heat exchanger is disclosed. A mixture or solution comprising a crystallizable material is passed through a plate heat exchanger at an appropriate temperature and pressure such that the material is selectively crystallized. The processes are particularly useful in the production of para-xylene, dimethylnaphthalene, aromatic carboxylic acids, and aromatic anhydrides.Type: GrantFiled: February 10, 1998Date of Patent: February 27, 2001Assignee: BP Amoco CorporationInventors: Kenneth J. Abrams, Thomas M. Bartos, Debra J. Streich
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Patent number: 6137001Abstract: Processes are disclosed for recovery of hydrogen bromide from one or more alkyl bromide compounds by hydrolyzing the alkyl bromide compounds to hydrogen bromide and corresponding alcohols, and simultaneously separating at least the alcoholic products of hydrolysis from aliphatic monocarboxylic acid solvent component. Also disclosed are process for preparing aromatic carboxylic acids by the exothermic, liquid-phase oxidation of an aromatic feedstock compound wherein the energy produced by the exothermic oxidation is efficiently recovered, and uses of water produced during the preparation of aromatic carboxylic acids are efficiently integrated into the process.Type: GrantFiled: February 5, 1999Date of Patent: October 24, 2000Assignee: BP Amoco CorporationInventors: Jeffrey L. Broeker, Frank G. Belmonte, Thomas M. Bartos, Alakananda Bhattacharyya, Anne M. Karachewski, Bruce I. Rosen, Kenneth J. Abrams