Patents Assigned to EnFlex, Inc.
  • Publication number: 20240068745
    Abstract: A natural gas liquefaction system and method for effectively and efficiently removing heavy hydrocarbons and converting natural gas into liquefied natural gas. Natural gas streams entering the system may consist of varied gas compositions, pressures, and temperatures. In embodiments the system may comprise a natural gas (NG)-to-liquefied natural gas (LNG) portion and a closed-loop refrigeration portion comprising a closed-loop single mixed refrigerant system. In other embodiments the system may comprise an NG-to-LNG portion and a closed-loop refrigeration portion comprising a closed-loop gaseous nitrogen expansion refrigeration system. All embodiments utilize an integrated heat exchanger with cold-end and warm-end sections and integrated multi-stage compressor and expander configurations (e.g. compander) in order to increase overall operation flexibility and efficiency.
    Type: Application
    Filed: September 29, 2023
    Publication date: February 29, 2024
    Applicant: EnFlex, Inc.
    Inventors: James Zhao, Shukui Zhao
  • Patent number: 11808518
    Abstract: A natural gas liquefaction system and method for effectively and efficiently removing heavy hydrocarbons and converting natural gas into liquefied natural gas. Natural gas streams entering the system may consist of varied gas compositions, pressures, and temperatures. In embodiments the system may comprise a natural gas (NG)-to-liquefied natural gas (LNG) portion and a closed-loop refrigeration portion comprising a closed-loop single mixed refrigerant system. In other embodiments the system may comprise an NG-to-LNG portion and a closed-loop refrigeration portion comprising a closed-loop gaseous nitrogen expansion refrigeration system. All embodiments utilize an integrated heat exchanger with cold-end and warm-end sections and integrated multi-stage compressor and expander configurations (e.g. compander) in order to increase overall operation flexibility and efficiency.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: November 7, 2023
    Assignee: EnFlex, Inc.
    Inventors: James Zhao, Shukui Zhao
  • Publication number: 20230324115
    Abstract: One or more specific embodiments disclosed herein includes a method for separating hydrogen from an olefin hydrocarbon rich compressed effluent vapor stream, employing an integrated heat exchanger, multiple gas-liquid separators, external refrigeration systems, and a rectifier attached to a liquid product drum.
    Type: Application
    Filed: May 31, 2023
    Publication date: October 12, 2023
    Applicant: Enflex, Inc.
    Inventors: James Zhao, Shukui Zhao
  • Publication number: 20230304732
    Abstract: One or more specific embodiments disclosed herein includes a method for separating hydrogen from an olefin hydrocarbon rich compressed effluent vapor stream, employing a integrated heat exchanger, multiple gas-liquid separators, external refrigeration systems, and a rectifier attached to a liquid product drum.
    Type: Application
    Filed: May 31, 2023
    Publication date: September 28, 2023
    Applicant: Enflex, Inc.
    Inventors: James Zhao, Shukui Zhao
  • Patent number: 11674748
    Abstract: One or more specific embodiments disclosed herein includes a method for separating hydrogen from an olefin hydrocarbon rich compressed effluent vapor stream, employing an integrated heat exchanger, multiple gas-liquid separators, external refrigeration systems, and a rectifier attached to a liquid product drum.
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: June 13, 2023
    Assignee: Enflex, Inc.
    Inventors: James Zhao, Shukui Zhao
  • Patent number: 11668523
    Abstract: One or more specific embodiments disclosed herein includes a method for separating hydrogen from an olefin hydrocarbon rich compressed effluent vapor stream, employing a integrated heat exchanger, multiple gas-liquid separators, external refrigeration systems, and a rectifier attached to a liquid product drum.
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: June 6, 2023
    Assignee: Enflex, Inc.
    Inventors: James Zhao, Shukui Zhao
  • Publication number: 20230160633
    Abstract: One or more specific embodiments disclosed herein includes a method for separating hydrogen from an olefin hydrocarbon rich compressed effluent vapor stream, employing a integrated heat exchanger, multiple gas-liquid separators, external refrigeration systems, and a rectifier attached to a liquid product drum.
    Type: Application
    Filed: January 19, 2023
    Publication date: May 25, 2023
    Applicant: Enflex, Inc.
    Inventors: James Zhao, Shukui Zhao
  • Publication number: 20230050081
    Abstract: One or more specific embodiments disclosed herein includes a method for separating hydrogen from an olefin hydrocarbon rich compressed effluent vapor stream, employing a integrated heat exchanger, multiple gas-liquid separators, external refrigeration systems, and a rectifier attached to a liquid product drum.
    Type: Application
    Filed: October 14, 2022
    Publication date: February 16, 2023
    Applicant: Enflex, Inc.
    Inventors: James Zhao, Shukui Zhao
  • Patent number: 11448460
    Abstract: One or more specific embodiments disclosed herein includes a method for separating hydrogen from an olefin hydrocarbon rich compressed effluent vapor stream, employing a single heat exchanger, multiple gas-liquid separators, multiple expander/compressor sets, and a rectifier attached to a liquid product drum.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: September 20, 2022
    Assignee: Enflex, Inc.
    Inventors: James Zhao, Shukui Zhao
  • Publication number: 20220018597
    Abstract: One or more specific embodiments disclosed herein includes a method for separating hydrogen from an olefin hydrocarbon rich compressed effluent vapor stream, employing an integrated heat exchanger, multiple gas-liquid separators, external refrigeration systems, and a rectifier attached to a liquid product drum.
    Type: Application
    Filed: March 3, 2021
    Publication date: January 20, 2022
    Applicant: Enflex, Inc.
    Inventors: James Zhao, Shukui Zhao
  • Publication number: 20210364231
    Abstract: A natural gas liquefaction system and method for effectively and efficiently removing heavy hydrocarbons and converting natural gas into liquefied natural gas. Natural gas streams entering the system may consist of varied gas compositions, pressures, and temperatures. In embodiments the system may comprise a natural gas (NG)-to-liquefied natural gas (LNG) portion and a closed-loop refrigeration portion comprising a closed-loop single mixed refrigerant system. In other embodiments the system may comprise an NG-to-LNG portion and a closed-loop refrigeration portion comprising a closed-loop gaseous nitrogen expansion refrigeration system. All embodiments utilize an integrated heat exchanger with cold-end and warm-end sections and integrated multi-stage compressor and expander configurations (e.g. compander) in order to increase overall operation flexibility and efficiency.
    Type: Application
    Filed: May 21, 2020
    Publication date: November 25, 2021
    Applicant: EnFlex, Inc.
    Inventors: James Zhao, Shukui Zhao
  • Publication number: 20210341224
    Abstract: One or more specific embodiments disclosed herein includes a method for separating hydrogen from an olefin hydrocarbon rich compressed effluent vapor stream, employing a integrated heat exchanger, multiple gas-liquid separators, external refrigeration systems, and a rectifier attached to a liquid product drum.
    Type: Application
    Filed: July 16, 2021
    Publication date: November 4, 2021
    Applicant: Enflex, Inc.
    Inventors: James Zhao, Shukui Zhao
  • Publication number: 20210190420
    Abstract: One or more specific embodiments disclosed herein includes a method for separating hydrogen from an olefin hydrocarbon rich compressed effluent vapor stream, employing a integrated heat exchanger, multiple gas-liquid separators, external refrigeration systems, and a rectifier attached to a liquid product drum.
    Type: Application
    Filed: March 3, 2021
    Publication date: June 24, 2021
    Applicant: Enflex, Inc.
    Inventors: James Zhao, Shukui Zhao
  • Publication number: 20210088278
    Abstract: One or more specific embodiments disclosed herein includes a method for separating hydrogen from an olefin hydrocarbon rich compressed effluent vapor stream, employing a single heat exchanger, multiple gas-liquid separators, multiple expander/compressor sets, and a rectifier attached to a liquid product drum.
    Type: Application
    Filed: December 7, 2020
    Publication date: March 25, 2021
    Applicant: EnFlex, Inc.
    Inventors: James Zhao, Shukui Zhao
  • Patent number: 10947171
    Abstract: One or more specific embodiments disclosed herein includes a method for separating hydrogen from an olefin hydrocarbon rich compressed effluent vapor stream, employing a single heat exchanger, multiple gas-liquid separators, multiple expander/compressor sets, and a rectifier attached to a liquid product drum.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: March 16, 2021
    Assignee: Enflex, Inc.
    Inventors: James Zhao, Shukui Zhao
  • Patent number: 10859313
    Abstract: One or more specific embodiments disclosed herein includes a method for separating hydrogen from an olefin hydrocarbon rich compressed effluent vapor stream, employing a single heat exchanger, multiple gas-liquid separators, multiple expander/compressor sets, and a rectifier attached to a liquid product drum.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: December 8, 2020
    Assignee: EnFlex, Inc.
    Inventors: James Zhao, Shukui Zhao
  • Publication number: 20200275630
    Abstract: One or more specific embodiments disclosed herein includes a method for separating hydrogen from an olefin hydrocarbon rich compressed effluent vapor stream, employing a single heat exchanger, multiple gas-liquid separators, multiple expander/compressor sets, and a rectifier attached to a liquid product drum.
    Type: Application
    Filed: April 27, 2020
    Publication date: September 3, 2020
    Applicant: EnFlex, Inc.
    Inventors: James Zhao, Shukui Zhao
  • Patent number: 10633305
    Abstract: One or more specific embodiments disclosed herein includes a method for separating hydrogen from an olefin hydrocarbon rich compressed effluent vapor stream, employing a single heat exchanger, multiple gas-liquid separators, multiple expander/compressor sets, and a rectifier attached to a liquid product drum.
    Type: Grant
    Filed: May 21, 2017
    Date of Patent: April 28, 2020
    Assignee: Enflex, Inc.
    Inventors: James Zhao, Shukui Zhao
  • Publication number: 20190137172
    Abstract: One or more specific embodiments disclosed herein includes a method for separating hydrogen from an olefin hydrocarbon rich compressed effluent vapor stream, employing a single heat exchanger, multiple gas-liquid separators, multiple expander/compressor sets, and a rectifier attached to a liquid product drum.
    Type: Application
    Filed: May 24, 2018
    Publication date: May 9, 2019
    Applicant: EnFlex, Inc.
    Inventors: James Zhao, Shukui Zhao
  • Publication number: 20180335254
    Abstract: One or more specific embodiments disclosed herein includes a method for separating hydrogen from an olefin hydrocarbon rich compressed effluent vapor stream, employing a single heat exchanger, multiple gas-liquid separators, multiple expander/compressor sets, and a rectifier attached to a liquid product drum.
    Type: Application
    Filed: May 21, 2017
    Publication date: November 22, 2018
    Applicant: EnFlex, Inc.
    Inventors: James Zhao, Shukui Zhao