Patents by Inventor Tushar Choudhary
Tushar Choudhary 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: 10562829Abstract: A process is disclosed for polishing a relatively highly pure stream of aromatic material bound for use as a petrochemical feedstock wherein the stream includes olefins and especially concerning, diolefins. The process comprises hydrotreating the highly pure aromatic stream with an unsulfided cobalt molybdenum catalyst that has low saturating activity for the aromatic but is active for saturating olefins and diolefins.Type: GrantFiled: December 6, 2018Date of Patent: February 18, 2020Assignee: Phillips 66 CompanyInventors: Tushar Choudhary, Tu N. Pham, Sundararajan Uppili
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Patent number: 10173195Abstract: Processes relating to thermal activation (or cracking) of ethane to an intermediate, low purity raw ethylene stream in a first stage. This stream is then mixed with a stream of biomass-derived ethanol that may contain four volume percent or more of water. The resulting mixture is reacted over a suitable catalyst at temperatures and pressures suitable to produce gasoline-range and diesel-range blend stock.Type: GrantFiled: December 16, 2014Date of Patent: January 8, 2019Assignee: Phillips 66 CompanyInventors: Jianhua Yao, Dhananjay Ghonasgi, Tushar Choudhary, Warren Ewert
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Patent number: 10087380Abstract: A process for converting ethane to liquid fuels may involve directing an ethane stream into an ethane cracking unit to produce an intermediate hydrocarbon stream and a raw ethylene stream; fractionating the intermediate hydrocarbon stream into a gasoline fraction and a diesel fraction; introducing the raw ethylene stream into an oligomerization unit; contacting the raw ethylene stream with an oligomerization catalyst to produce a liquid hydrocarbon stream and an off-gas stream; recycling an off-gas recycle stream from an off-gas stream of the oligomerization unit separation unit to an inlet of the oligomerization reactor; introducing at least part of the off-gas stream into a hydrogenation reactor to remove unconverted olefins; separating a hydrogen component and a plurality of light paraffin components in a post hydrogenation reactor separation unit using a PSA technology or membrane technology; and recycling the light paraffins stream into the ethane cracking unit.Type: GrantFiled: December 16, 2014Date of Patent: October 2, 2018Assignee: Phillips 66 CompanyInventors: Jianhu Yao, Dhananjay Ghonasgi, Tushar Choudhary, Warren Ewert
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Patent number: 9731270Abstract: Converting ethane may include directing a gaseous stream from a gas well into a fractionator for fractionating and producing a post-fractionator ethane stream, which is directed into a thermal activation unit for heating and raising the temperature of the post-fractionator ethane stream thereby creating an activated ethane stream, which is directed into a quench tower thereby creating a quenched stream, which may be converted in a catalytic conversion unit to a mixed product stream containing hydrogen and C1-C15 hydrocarbons; directing the mixed product stream into a first separation unit forming a stream of C4+ hydrocarbon product and a stream of C1-C3 hydrocarbons; directing the stream of C1-C3 hydrocarbons into a catalytic hydrogenation reactor thereby imparting hydrogen into a post-hydrogenation reactor stream, which is directed directly into a second separation unit thereby creating a light hydrocarbons recycle stream, which may be recycled into the thermal activation unit, and a hydrogen and methane strType: GrantFiled: December 16, 2014Date of Patent: August 15, 2017Assignee: PHILLIPS 66 COMPANYInventors: Jianhua Yao, Dhananjay Ghonasgi, Tushar Choudhary, Warren Ewert
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Patent number: 9545613Abstract: Systems relating to thermal activation (or cracking) of ethane to an intermediate, low purity raw ethylene stream in a first stage. The system then mixes this stream with a stream of raw biomass-derived ethanol that may contain more than four volume percent of water. The resulting mixture is reacted over a suitable catalyst at temperatures and pressures suitable to produce gasoline-range and diesel-range blend stock.Type: GrantFiled: December 16, 2014Date of Patent: January 17, 2017Assignee: Phillips 66 CompanyInventors: Jianhua Yao, Dhananjay Ghonasgi, Tushar Choudhary, Warren Ewert
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Publication number: 20160168491Abstract: A process for converting ethane to liquid fuels may involve directing an ethane stream into an ethane cracking unit to produce an intermediate hydrocarbon stream and a raw ethylene stream; fractionating the intermediate hydrocarbon stream into a gasoline fraction and a diesel fraction; introducing the raw ethylene stream into an oligomerization unit; contacting the raw ethylene stream with an oligomerization catalyst to produce a liquid hydrocarbon stream and an off-gas stream; recycling an off-gas recycle stream from an off-gas stream of the oligomerization unit separation unit to an inlet of the oligomerization reactor; introducing at least part of the off-gas stream into a hydrogenation reactor to remove unconverted olefins; separating a hydrogen component and a plurality of light paraffin components in a post hydrogenation reactor separation unit using a PSA technology or membrane technology; and recycling the light paraffins stream into the ethane cracking unit.Type: ApplicationFiled: December 16, 2014Publication date: June 16, 2016Inventors: Jianhua Yao, Dhananjay Ghonasgi, Tushar Choudhary, Warren Ewert
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Publication number: 20150196892Abstract: Systems relating to thermal activation (or cracking) of ethane to an intermediate, low purity raw ethylene stream in a first stage. The system then mixes this stream with a stream of raw biomass-derived ethanol that may contain more than four volume percent of water. The resulting mixture is reacted over a suitable catalyst at temperatures and pressures suitable to produce gasoline-range and diesel-range blend stock.Type: ApplicationFiled: December 16, 2014Publication date: July 16, 2015Applicant: Phillips 66 CompanyInventors: Jianhua Yao, Dhananjay Ghonasgi, Tushar Choudhary, Warren Ewert
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Publication number: 20150175908Abstract: Processes relating to thermal activation (or cracking) of ethane to an intermediate, low purity raw ethylene stream in a first stage. This stream is then mixed with a stream of biomass-derived ethanol that may contain four volume percent or more of water. The resulting mixture is reacted over a suitable catalyst at temperatures and pressures suitable to produce gasoline-range and diesel-range blend stock.Type: ApplicationFiled: December 16, 2014Publication date: June 25, 2015Applicant: PHILLIPS 66 COMPANYInventors: Jianhua Yao, Dhananjay Ghonasgi, Tushar Choudhary, Warren Ewert
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Publication number: 20150175907Abstract: Converting ethane may include directing a gaseous stream from a gas well into a fractionator for fractionating and producing a post-fractionator ethane stream, which is directed into a thermal activation unit for heating and raising the temperature of the post-fractionator ethane stream thereby creating an activated ethane stream, which is directed into a quench tower thereby creating a quenched stream, which may be converted in a catalytic conversion unit to a mixed product stream containing hydrogen and C1-C15 hydrocarbons; directing the mixed product stream into a first separation unit forming a stream of C4+ hydrocarbon product and a stream of C1-C3 hydrocarbons; directing the stream of C1-C3 hydrocarbons into a catalytic hydrogenation reactor thereby imparting hydrogen into a post-hydrogenation reactor stream, which is directed directly into a second separation unit thereby creating a light hydrocarbons recycle stream, which may be recycled into the thermal activation unit, and a hydrogen and methane strType: ApplicationFiled: December 16, 2014Publication date: June 25, 2015Applicant: PHILLIPS 66 COMPANYInventors: Jianhua Yao, Dhananjay Ghonasgi, Tushar Choudhary, Warren Ewert
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Patent number: 8834709Abstract: A process of producing a light oil stream from slurry oils. The process begins by obtaining slurry oil from a fluid catalytic cracking unit. The slurry oil is then flowed over a fixed bed catalyst, consisting essentially of a non-metal catalyst, to produce a processed slurry oil. The processed slurry oil is then separated by boiling point to separate out the light oil stream.Type: GrantFiled: December 16, 2011Date of Patent: September 16, 2014Assignee: Phillips 66 CompanyInventors: Tushar Choudhary, Ayyappan Subbiah
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Publication number: 20130092600Abstract: A process of producing a light oil stream from slurry oils. The process begins by obtaining slurry oil from a fluid catalytic cracking unit. The slurry oil is then flowed over a fixed bed catalyst, consisting essentially of a non-metal catalyst, to produce a processed slurry oil. The processed slurry oil is then separated by boiling point to separate out the light oil stream.Type: ApplicationFiled: December 16, 2011Publication date: April 18, 2013Applicant: ConocoPhillips CompanyInventors: Tushar Choudhary, Ayyappan Subbiah
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Publication number: 20070015658Abstract: A sorbent composition with reduced nickel fuzz content. The sorbent is effective to remove sulfur from a hydrocarbon-containing stream, such as gasoline or diesel fuel.Type: ApplicationFiled: July 15, 2005Publication date: January 18, 2007Inventors: Uday Turaga, Tushar Choudhary, Jason Gislason, Deborah Just
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Publication number: 20060102522Abstract: A composition comprising a metal oxide and a promoter and a halogen, wherein at least a portion of the promoter is present as a reduced valence promoter and methods of preparing such composition are disclosed. The thus-obtained composition is employed in a desulfurization zone to remove sulfur from a hydrocarbon stream.Type: ApplicationFiled: November 12, 2004Publication date: May 18, 2006Inventors: Uday Turaga, Tushar Choudhary
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Publication number: 20050065027Abstract: A composition comprising a metal oxide and a promoter, wherein at least a portion of the promoter is present as a reduced valence promoter, and methods of preparing such composition are disclosed. The thus-obtained composition is employed in a desulfurization zone to remove sulfur from a hydrocarbon stream.Type: ApplicationFiled: August 25, 2003Publication date: March 24, 2005Inventors: Tushar Choudhary, Glenn Dodwell, Marvin Johnson, Edward Sughrue, Robert Morton
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Publication number: 20050020446Abstract: A composition comprising a metal oxide and a promoter, wherein at least a portion of the promoter is present as a reduced valence promoter, and methods of preparing such composition are disclosed. The thus-obtained composition is employed in a desulfurization zone to remove sulfur from a hydrocarbon stream.Type: ApplicationFiled: August 10, 2004Publication date: January 27, 2005Inventors: Tushar Choudhary, Glenn Dodwell, Marvin Johnson, Deborah Just
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Publication number: 20050020445Abstract: A composition comprising a metal oxide and a promoter, wherein at least a portion of the promoter is present as a reduced valence promoter, and methods of preparing such composition are disclosed. The thus-obtained composition is employed in a desulfurization zone to remove sulfur from a hydrocarbon stream.Type: ApplicationFiled: July 23, 2003Publication date: January 27, 2005Inventors: Tushar Choudhary, Jason Gislason, Glenn Dodwell, William Beever