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).

  • Patent number: 11299680
    Abstract: 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: Grant
    Filed: June 24, 2021
    Date of Patent: April 12, 2022
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Mingting Xu, Tengfei Liu, Richard L. Grove, Michael K. Maholland
  • Patent number: 10947458
    Abstract: 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: Grant
    Filed: March 18, 2020
    Date of Patent: March 16, 2021
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Tengfei Liu, Mingting Xu, Kandaswamy Jothimurugesan, Richard Grove, Michael K. Maholland, Michelle Young, Winnie Lieu, Cameron McCord
  • Patent number: 10479943
    Abstract: 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: Grant
    Filed: August 17, 2018
    Date of Patent: November 19, 2019
    Assignee: Chevron U.S.A. Inc.
    Inventors: Tengfei Liu, Mingting Xu, Charles Guthrie, Richard Grove, Mike Maholland
  • Patent number: 7497942
    Abstract: 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: Grant
    Filed: June 6, 2003
    Date of Patent: March 3, 2009
    Assignee: BASF Catalysts, LLC
    Inventor: Mingting Xu
  • Patent number: 7344695
    Abstract: 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: Grant
    Filed: March 14, 2005
    Date of Patent: March 18, 2008
    Assignee: Engelhard Corporation
    Inventors: Mingting Xu, John Macaoay
  • Patent number: 6942783
    Abstract: 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: Grant
    Filed: May 19, 2003
    Date of Patent: September 13, 2005
    Assignee: Engelhard Corporation
    Inventors: Mingting Xu, David Matheson Stockwell
  • Publication number: 20050181933
    Abstract: 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: Application
    Filed: March 14, 2005
    Publication date: August 18, 2005
    Inventors: Mingting Xu, John Macaoay
  • Patent number: 6908603
    Abstract: 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: Grant
    Filed: June 2, 2003
    Date of Patent: June 21, 2005
    Assignee: Engelhard Corporation
    Inventors: Mingting Xu, John Macaoay
  • Publication number: 20050067322
    Abstract: 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: Application
    Filed: September 2, 2004
    Publication date: March 31, 2005
    Inventor: Mingting Xu
  • Publication number: 20040245148
    Abstract: 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: Application
    Filed: June 6, 2003
    Publication date: December 9, 2004
    Inventor: Mingting Xu
  • Publication number: 20040238407
    Abstract: 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: Application
    Filed: June 2, 2003
    Publication date: December 2, 2004
    Inventors: Mingting Xu, John Macaoay
  • Publication number: 20040235642
    Abstract: 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: Application
    Filed: May 19, 2003
    Publication date: November 25, 2004
    Inventors: Mingting Xu, David Matheson Stockwell
  • Patent number: 6716338
    Abstract: 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: Grant
    Filed: July 8, 2002
    Date of Patent: April 6, 2004
    Assignee: Engelhard Corporation
    Inventors: Rostam Madon, David H. Harris, Mingting Xu, David Stockwell, Bruce Lerner, Glenn W. Dodwell
  • Patent number: 6673235
    Abstract: 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: Grant
    Filed: June 6, 2002
    Date of Patent: January 6, 2004
    Assignee: Engelhard Corporation
    Inventors: David H. Harris, Mingting Xu, David Stockwell, Rostam J. Madon
  • Publication number: 20030136707
    Abstract: 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: Application
    Filed: June 6, 2002
    Publication date: July 24, 2003
    Applicant: ENGELHARD CORPORATION
    Inventors: David H. Harris, Mingting Xu, David Stockwell, Rostam J. Madon
  • Publication number: 20030130107
    Abstract: 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: Application
    Filed: July 8, 2002
    Publication date: July 10, 2003
    Inventors: Rostam Madon, David H. Harris, Mingting Xu, David Stockwell, Bruce Lerner, Glenn W. Dodwell
  • Publication number: 20030089640
    Abstract: 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: Application
    Filed: October 17, 2001
    Publication date: May 15, 2003
    Inventors: Rostam Madon, David H. Harris, Mingting Xu, David Stockwell, Bruce Lerner, Glenn W. Dodwell