Patents Assigned to EnFlex, Inc.
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Publication number: 20240068745Abstract: 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: ApplicationFiled: September 29, 2023Publication date: February 29, 2024Applicant: EnFlex, Inc.Inventors: James Zhao, Shukui Zhao
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Patent number: 11808518Abstract: 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: GrantFiled: May 21, 2020Date of Patent: November 7, 2023Assignee: EnFlex, Inc.Inventors: James Zhao, Shukui Zhao
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Publication number: 20230324115Abstract: 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: ApplicationFiled: May 31, 2023Publication date: October 12, 2023Applicant: Enflex, Inc.Inventors: James Zhao, Shukui Zhao
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Publication number: 20230304732Abstract: 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: ApplicationFiled: May 31, 2023Publication date: September 28, 2023Applicant: Enflex, Inc.Inventors: James Zhao, Shukui Zhao
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Patent number: 11674748Abstract: 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: GrantFiled: March 3, 2021Date of Patent: June 13, 2023Assignee: Enflex, Inc.Inventors: James Zhao, Shukui Zhao
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Patent number: 11668523Abstract: 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: GrantFiled: March 3, 2021Date of Patent: June 6, 2023Assignee: Enflex, Inc.Inventors: James Zhao, Shukui Zhao
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Publication number: 20230160633Abstract: 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: ApplicationFiled: January 19, 2023Publication date: May 25, 2023Applicant: Enflex, Inc.Inventors: James Zhao, Shukui Zhao
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Publication number: 20230050081Abstract: 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: ApplicationFiled: October 14, 2022Publication date: February 16, 2023Applicant: Enflex, Inc.Inventors: James Zhao, Shukui Zhao
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Patent number: 11448460Abstract: 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: GrantFiled: December 7, 2020Date of Patent: September 20, 2022Assignee: Enflex, Inc.Inventors: James Zhao, Shukui Zhao
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Publication number: 20220018597Abstract: 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: ApplicationFiled: March 3, 2021Publication date: January 20, 2022Applicant: Enflex, Inc.Inventors: James Zhao, Shukui Zhao
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Publication number: 20210364231Abstract: 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: ApplicationFiled: May 21, 2020Publication date: November 25, 2021Applicant: EnFlex, Inc.Inventors: James Zhao, Shukui Zhao
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Publication number: 20210341224Abstract: 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: ApplicationFiled: July 16, 2021Publication date: November 4, 2021Applicant: Enflex, Inc.Inventors: James Zhao, Shukui Zhao
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Publication number: 20210190420Abstract: 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: ApplicationFiled: March 3, 2021Publication date: June 24, 2021Applicant: Enflex, Inc.Inventors: James Zhao, Shukui Zhao
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Publication number: 20210088278Abstract: 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: ApplicationFiled: December 7, 2020Publication date: March 25, 2021Applicant: EnFlex, Inc.Inventors: James Zhao, Shukui Zhao
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Patent number: 10947171Abstract: 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: GrantFiled: April 27, 2020Date of Patent: March 16, 2021Assignee: Enflex, Inc.Inventors: James Zhao, Shukui Zhao
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Patent number: 10859313Abstract: 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: GrantFiled: May 24, 2018Date of Patent: December 8, 2020Assignee: EnFlex, Inc.Inventors: James Zhao, Shukui Zhao
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Publication number: 20200275630Abstract: 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: ApplicationFiled: April 27, 2020Publication date: September 3, 2020Applicant: EnFlex, Inc.Inventors: James Zhao, Shukui Zhao
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Patent number: 10633305Abstract: 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: GrantFiled: May 21, 2017Date of Patent: April 28, 2020Assignee: Enflex, Inc.Inventors: James Zhao, Shukui Zhao
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Publication number: 20190137172Abstract: 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: ApplicationFiled: May 24, 2018Publication date: May 9, 2019Applicant: EnFlex, Inc.Inventors: James Zhao, Shukui Zhao
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Publication number: 20180335254Abstract: 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: ApplicationFiled: May 21, 2017Publication date: November 22, 2018Applicant: EnFlex, Inc.Inventors: James Zhao, Shukui Zhao