Patents by Inventor Robert E. Lumpkin

Robert E. Lumpkin 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: 12054761
    Abstract: Disclosed herein are methods, systems, and compositions for the pretreatment of biomass within seconds with low inhibitor formation. The pretreatment process is used to convert biomass to a fuel or other useful chemicals by subjecting the feedstock to a rapid retention time under pressure and temperature and/or chemical reactant. The system includes a continuously-operating valve discharge apparatus to discharge pretreated feedstock while maintaining uniform pressure on the pretreatment system.
    Type: Grant
    Filed: January 4, 2023
    Date of Patent: August 6, 2024
    Assignee: Apalta Patents OÜ
    Inventor: Robert E. Lumpkin
  • Publication number: 20230295678
    Abstract: Disclosed herein are methods, systems, and compositions for the pretreatment of biomass within seconds with low inhibitor formation. The pretreatment process is used to convert biomass to a fuel or other useful chemicals by subjecting the feedstock to a rapid retention time under pressure and temperature and/or chemical reactant. The system includes a continuously-operating valve discharge apparatus to discharge pretreated feedstock while maintaining uniform pressure on the pretreatment system.
    Type: Application
    Filed: January 4, 2023
    Publication date: September 21, 2023
    Inventor: Robert E. LUMPKIN
  • Publication number: 20210040524
    Abstract: Disclosed herein are methods, systems, and compositions for the pretreatment of biomass within seconds with low inhibitor formation. The pretreatment process is used to convert biomass to a fuel or other useful chemicals by subjecting the feedstock to a rapid retention time under pressure and temperature and/or chemical reactant. The system includes a continuously-operating valve discharge apparatus to discharge pretreated feedstock while maintaining uniform pressure on the pretreatment system.
    Type: Application
    Filed: October 21, 2020
    Publication date: February 11, 2021
    Inventor: Robert E. Lumpkin
  • Patent number: 10844413
    Abstract: Disclosed herein are methods, systems, and compositions for the pretreatment of biomass within seconds with low inhibitor formation. The pretreatment process is used to convert biomass to a fuel or other useful chemicals by subjecting the feedstock to a rapid retention time under pressure and temperature and/or chemical reactant. The system includes a continuously-operating valve discharge apparatus to discharge pretreated feedstock while maintaining uniform pressure on the pretreatment system.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: November 24, 2020
    Assignee: Sweetwater Energy, Inc.
    Inventor: Robert E. Lumpkin
  • Publication number: 20160273009
    Abstract: Disclosed herein are methods, systems, and compositions for the pretreatment of biomass within seconds with low inhibitor formation. The pretreatment process is used to convert biomass to a fuel or other useful chemicals by subjecting the feedstock to a rapid retention time under pressure and temperature and/or chemical reactant. The system includes a continuously-operating valve discharge apparatus to discharge pretreated feedstock while maintaining uniform pressure on the pretreatment system.
    Type: Application
    Filed: December 16, 2015
    Publication date: September 22, 2016
    Inventor: Robert E. Lumpkin
  • Patent number: 4146359
    Abstract: This invention relates to a new and novel method and apparatus for reacting nongaseous material with a gaseous reactant comprising introducing a first stream containing a nongaseous material into a reaction zone; simultaneously introducing a second stream containing a gaseous reactant into the reaction zone such that the gaseous reactant immediately contacts and reacts with the first stream thereby producing a gaseous product; forming a spiralling vortex within the reaction zone to cause substantial separation of gases, including the gaseous product, from the nongaseous material; forming and removing a third stream from the reaction zone containing the gaseous product which is substantially free of the nongaseous material before a major portion of the gaseous product can react with the nongaseous material; and forming and removing a fourth stream containing the nongaseous material from the reaction zone.
    Type: Grant
    Filed: June 25, 1976
    Date of Patent: March 27, 1979
    Assignee: Occidental Petroleum Corporation
    Inventors: Robert E. Lumpkin, Kandaswamy Duraiswamy
  • Patent number: 4145274
    Abstract: In a continuous process for recovery of values contained in a solid carbonaceous material, the carbonaceous material is comminuted and then subjected to flash pyrolysis in the presence of a particulate heat source fed over an overflow weir to form a pyrolysis product stream containing a carbon containing solid residue and volatilized hydrocarbons. After the carbon containing solid residue is separated from the pyrolysis product stream, values are obtained by condensing volatilized hydrocarbons. The particulate source of heat is formed by oxidizing carbon in the solid residue.
    Type: Grant
    Filed: May 5, 1977
    Date of Patent: March 20, 1979
    Assignee: Occidental Petroleum Corporation
    Inventors: Norman W. Green, Kandaswamy Duraiswamy, Robert E. Lumpkin, Bruce L. Winter
  • Patent number: 4102773
    Abstract: In a continuous process for recovery of values contained in a solid carbonaceous material, the carbonaceous material is comminuted and then subjected to flash pyrolysis in the presence of a particulate heat source over an overflow weir to form a pyrolysis product stream containing a carbon containing solid residue and volatilized hydrocarbons. After the carbon containing solid residue is separated from the pyrolysis product stream, values are obtained by condensing volatilized hydrocarbons. The particulate source of heat is formed by oxidizing carbon in the solid residue and separating out the fines.
    Type: Grant
    Filed: June 25, 1976
    Date of Patent: July 25, 1978
    Assignee: Occidental Petroleum Corporation
    Inventors: Norman W. Green, Kandaswamy Duraiswamy, Robert E. Lumpkin
  • Patent number: 4101263
    Abstract: Nongaseous carbonaceous material is heated by a method comprising introducing tangentially a first stream containing a nongaseous carbonaceous material and carbon monoxide into a reaction zone; simultaneously and separately introducing a second stream containing oxygen into the reaction zone such that the oxygen enters the reaction zone away from the wall thereof and reacts with the first stream thereby producing a gaseous product and heating the nongaseous carbonaceous material; forming an outer spiralling vortex within the reaction zone to cause substantial separation of gases, including the gaseous product, from the nongaseous carbonaceous material; removing a third stream from the reaction zone containing the gaseous product which is substantially free of the nongaseous carbonaceous material before a major portion of the gaseous product can react with the nongaseous carbonaceous material; and removing a fourth stream containing the nongaseous carbonaceous material from the reaction zone.
    Type: Grant
    Filed: June 25, 1976
    Date of Patent: July 18, 1978
    Assignee: Occidental Petroleum Corporation
    Inventor: Robert E. Lumpkin, Jr.
  • Patent number: 4085030
    Abstract: In a continuous process for recovery of values contained in a solid carbonaceous material, the carbonaceous material is comminuted and then subjected to flash pyrolysis in the presence of a particulate heat source to form a pyrolysis product stream containing a carbon containing solid residue and volatilized hydrocarbons. After the carbon containing solid residue is separated from the pyrolysis product stream, values are obtained by condensing volatilized hydrocarbons. The particulate source of heat is formed by oxidizing carbon in the solid residue. Apparatus useful for practicing this process are disclosed.
    Type: Grant
    Filed: June 25, 1976
    Date of Patent: April 18, 1978
    Assignee: Occidental Petroleum Corporation
    Inventors: Norman W. Green, Kandaswamy Duraiswamy, Robert E. Lumpkin, Everett W. Knell, Zia I. Mirza, Bruce L. Winter