Patents by Inventor Mingting Xu
Mingting Xu 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: 11299680Abstract: A process is provided for the catalytic cracking of a glyceride oil feedstock with a catalyst composition containing a phosphorus-containing ZSM-5 light olefins additive.Type: GrantFiled: June 24, 2021Date of Patent: April 12, 2022Assignee: CHEVRON U.S.A. INC.Inventors: Mingting Xu, Tengfei Liu, Richard L. Grove, Michael K. Maholland
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Patent number: 10947458Abstract: A process is provided for upgrading a renewable feedstock. The process includes introducing the renewable feedstock into a fluid catalytic cracking (FCC) reactor unit operating under catalytic cracking conditions and comprising a circulating inventory of an equilibrium catalyst composition; removing a portion of the equilibrium catalyst inventory from the FCC reactor unit while replacing all the equilibrium catalyst removed from the unit with a spent catalyst to obtain a composite circulating catalyst within the FCC reactor unit; and contacting the composite circulating catalyst with the renewable feedstock in the FCC reactor unit under a steady state environment to provide a product stream comprising cracked products.Type: GrantFiled: March 18, 2020Date of Patent: March 16, 2021Assignee: CHEVRON U.S.A. INC.Inventors: Tengfei Liu, Mingting Xu, Kandaswamy Jothimurugesan, Richard Grove, Michael K. Maholland, Michelle Young, Winnie Lieu, Cameron McCord
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Patent number: 10479943Abstract: Disclosed herein is a method for making diesel, gasoline and LPG comprising coprocessing a petroleum-derived feedstock with up to 50 wt. %, relative to the total weight of the feedstocks, of a lipid-containing feedstock in the presence of a catalyst under fluidized catalyst cracking conditions. Also disclosed herein is a method for making a diesel fuel or a combined diesel and gasoline fuel by injecting up to 50 wt. %, relative to the total weight of the feedstocks, of a lipid-containing feedstock to a stripper or a riser quench downstream from a petroleum derived feedstock injection point in a fluid catalytic cracking unit.Type: GrantFiled: August 17, 2018Date of Patent: November 19, 2019Assignee: Chevron U.S.A. Inc.Inventors: Tengfei Liu, Mingting Xu, Charles Guthrie, Richard Grove, Mike Maholland
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Patent number: 7497942Abstract: In the regeneration of a cracking catalyst in a regeneration zone operated in a partial combustion mode, NH3 and HCN in the regenerator flue gas are reduced by incorporating into the regenerator precious metals such as ruthenium, rhodium, iridium, or mixtures thereof.Type: GrantFiled: June 6, 2003Date of Patent: March 3, 2009Assignee: BASF Catalysts, LLCInventor: Mingting Xu
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Patent number: 7344695Abstract: A novel method of forming ZSM-5 comprises reacting calcined kaolin microspheres with silicate and a seed solution used for forming zeolite Y under conditions of pH, temperature, and time to yield ZSM-5 crystals formed in-situ on said calcined kaolin microspheres. The reaction medium does not contain any organic templates or ZSM-5 seeding crystals.Type: GrantFiled: March 14, 2005Date of Patent: March 18, 2008Assignee: Engelhard CorporationInventors: Mingting Xu, John Macaoay
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Patent number: 6942783Abstract: A fluid catalytic cracking catalyst is provided with a high porosity by in-situ crystallizing an aluminosilicate zeolite from a reactive microsphere comprising metakaolin and hydrous kaolin. Any calcination of the reactive microsphere before reaction with a zeolite-forming solution is done at low temperatures so as to ensure the hydrous kaolin is not converted to metakaolin.Type: GrantFiled: May 19, 2003Date of Patent: September 13, 2005Assignee: Engelhard CorporationInventors: Mingting Xu, David Matheson Stockwell
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Publication number: 20050181933Abstract: A novel method of forming ZSM-5 comprises reacting calcined kaolin microspheres with silicate and a seed solution used for forming zeolite Y under conditions of pH, temperature, and time to yield ZSM-5 crystals formed in-situ on said calcined kaolin microspheres. The reaction medium does not contain any organic templates or ZSM-5 seeding crystals.Type: ApplicationFiled: March 14, 2005Publication date: August 18, 2005Inventors: Mingting Xu, John Macaoay
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Patent number: 6908603Abstract: A novel method of forming ZSM-5 comprises reacting calcined kaolin microspheres with silicate and a seed solution used for forming zeolite Y under conditions of pH, temperature, and time to yield ZSM-5 crystals formed in-situ on said calcined kaolin microspheres. The reaction medium does not contain any organic templates or ZSM-5 seeding crystals.Type: GrantFiled: June 2, 2003Date of Patent: June 21, 2005Assignee: Engelhard CorporationInventors: Mingting Xu, John Macaoay
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Publication number: 20050067322Abstract: The amount of NOx formed during regeneration of a cracking catalyst in the presence of a metallic carbon monoxide combustion catalyst is decreased by utilizing as the carbon monoxide combustion catalyst rhodium and/or iridium on an oxide support such as alumina.Type: ApplicationFiled: September 2, 2004Publication date: March 31, 2005Inventor: Mingting Xu
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Publication number: 20040245148Abstract: In the regeneration of a cracking catalyst in a regeneration zone operated in a partial combustion mode, NH3 and HCN in the regenerator flue gas are reduced by incorporating into the regenerator precious metals such as ruthenium, rhodium, iridium, or mixtures thereof.Type: ApplicationFiled: June 6, 2003Publication date: December 9, 2004Inventor: Mingting Xu
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Publication number: 20040238407Abstract: A novel method of forming ZSM-5 comprises reacting calcined kaolin microspheres with silicate and a seed solution used for forming zeolite Y under conditions of pH, temperature, and time to yield ZSM-5 crystals formed in-situ on said calcined kaolin microspheres. The reaction medium does not contain any organic templates or ZSM-5 seeding crystals.Type: ApplicationFiled: June 2, 2003Publication date: December 2, 2004Inventors: Mingting Xu, John Macaoay
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Publication number: 20040235642Abstract: A fluid catalytic cracking catalyst is provided with a high porosity by in-situ crystallizing an aluminosilicate zeolite from a reactive microsphere comprising metakaolin and hydrous kaolin. Any calcination of the reactive microsphere before reaction with a zeolite-forming solution is done at low temperatures so as to ensure the hydrous kaolin is not converted to metakaolin.Type: ApplicationFiled: May 19, 2003Publication date: November 25, 2004Inventors: Mingting Xu, David Matheson Stockwell
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Patent number: 6716338Abstract: A fluid catalytic cracking catalyst made from microspheres that initially contain kaolin, a dispersible boehmite alumina and a sodium silicate or silica sol binder. The kaolin portion contains hydrous kaolin and optionally spinel, or mullite, or both spinel and mullite made via kaolin which has been calcined through its characteristic exotherm. Calcination of the hydrous clay to metakaolin and formation of in-situ zeolite by treatment with sodium silicate yields a catalyst containing Y-faujasite and transforms the dispersible boehmite into a transitional alumina. The catalyst can be used to crack resid or resid-containing feeds as the alumina phase formed from the dispersible boehmite passivates nickel and vanadium contaminants.Type: GrantFiled: July 8, 2002Date of Patent: April 6, 2004Assignee: Engelhard CorporationInventors: Rostam Madon, David H. Harris, Mingting Xu, David Stockwell, Bruce Lerner, Glenn W. Dodwell
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Patent number: 6673235Abstract: A fluid catalytic cracking catalyst made from microspheres that initially contain kaolin, a dispersible boehmite alumina and a sodium silicate or silica sol binder. The kaolin portion contains hydrous kaolin and a particular kaolin which has been calcined through its characteristic exotherm and which produces a catalyst having a novel morphology comprising a macroporous matrix and crystallized zeolite freely coating the walls of the pores of the matrix. Calcination of the hydrous kaolin to metakaolin and formation of in-situ zeolite by treatment with sodium silicate yields a catalyst containing Y-faujasite and transforms the dispersible boehmite into a transitional alumina. The catalyst can be used to crack resid or resid-containing feeds as the alumina phase formed from the dispersible boehmite passivates nickel and vanadium contaminants.Type: GrantFiled: June 6, 2002Date of Patent: January 6, 2004Assignee: Engelhard CorporationInventors: David H. Harris, Mingting Xu, David Stockwell, Rostam J. Madon
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Publication number: 20030136707Abstract: A fluid catalytic cracking catalyst made from microspheres that initially contain kaolin, a dispersible boehmite alumina and a sodium silicate or silica sol binder. The kaolin portion contains hydrous kaolin and a particular kaolin which has been calcined through its characteristic exotherm and which produces a catalyst having a novel morphology comprising a macroporous matrix and crystallized zeolite freely coating the walls of the pores of the matrix. Calcination of the hydrous kaolin to metakaolin and formation of in-situ zeolite by treatment with sodium silicate yields a catalyst containing Y-faujasite and transforms the dispersible boehmite into a transitional alumina. The catalyst can be used to crack resid or resid-containing feeds as the alumina phase formed from the dispersible boehmite passivates nickel and vanadium contaminants.Type: ApplicationFiled: June 6, 2002Publication date: July 24, 2003Applicant: ENGELHARD CORPORATIONInventors: David H. Harris, Mingting Xu, David Stockwell, Rostam J. Madon
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Publication number: 20030130107Abstract: A fluid catalytic cracking catalyst made from microspheres that initially contain kaolin, a dispersible boehmite alumina and a sodium silicate or silica sol binder. The kaolin portion contains hydrous kaolin and optionally spinel, or mullite, or both spinel and mullite made via kaolin which has been calcined through its characteristic exotherm. Calcination of the hydrous clay to metakaolin and formation of in-situ zeolite by treatment with sodium silicate yields a catalyst containing Y-faujasite and transforms the dispersible boehmite into a transitional alumina. The catalyst can be used to crack resid or resid-containing feeds as the alumina phase formed from the dispersible boehmite passivates nickel and vanadium contaminants.Type: ApplicationFiled: July 8, 2002Publication date: July 10, 2003Inventors: Rostam Madon, David H. Harris, Mingting Xu, David Stockwell, Bruce Lerner, Glenn W. Dodwell
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Publication number: 20030089640Abstract: A fluid catalytic cracking catalyst made from microspheres that initially contain kaolin, a dispersible boehmite alumina and a sodium silicate or silica sol binder. The kaolin portion contains hydrous kaolin and optionally kaolin which has been calcined through its characteristic exotherm. Calcination of the hydrous clay to metakaolin and formation of in-situ zeolite by treatment with sodium silicate yields a catalyst containing Y-faujasite and transforms the dispersible boehmite into a transitional alumina which contains a gamma alumina phase. The transitional alumina may contain a delta alumina phase as well. The catalyst can be used to crack resid or resid-containing feeds as the alumina phase formed from the dispersible boehmite passivates nickel and vanadium contaminants.Type: ApplicationFiled: October 17, 2001Publication date: May 15, 2003Inventors: Rostam Madon, David H. Harris, Mingting Xu, David Stockwell, Bruce Lerner, Glenn W. Dodwell