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    CATALYSTS AND METHODS FOR METHANE DEHYDROGENATION
    1.
    发明公开
    CATALYSTS AND METHODS FOR METHANE DEHYDROGENATION 审中-公开

    公开(公告)号：US20240166578A1

    公开(公告)日：2024-05-23

    申请号：US18221806

    申请日：2023-07-13

    Applicant: CHEVRON U.S.A. INC.

    Inventor： Xiaoying OUYANG ,  Alexander E. Kuperman ,  Huping Luo

    IPC: C07C2/76 ,  B01J21/08 ,  B01J35/00 ,  B01J35/02 ,  C01B3/26

    CPC classification number: C07C2/76 ,  B01J21/08 ,  B01J35/0013 ,  B01J35/023 ,  C01B3/26 ,  C01B2203/1241 ,  C07C2521/08

    Abstract: The present application pertains to a methane dehydrogenation process subjecting a methane feed to a novel SiO2 catalyst under dehydrogenation conditions and producing hydrogen, ethylene, an aromatic, or any mixture thereof. In another embodiment, the present application pertains to a novel catalyst for methane dehydrogenation. The catalyst comprises amorphous particles of SiO2. The amorphous particles have a particle size with a nominal diameter of from about 5 nm to 1 cm. The amorphous particles of SiO2 comprise a Lewis acidity sufficient to activate one or more C—H bonds in methane and generate one or more methyl radicals when the catalyst is subjected to methane dehydrogenation conditions. In another embodiment, the present application pertains to method of making the novel catalyst for methane dehydrogenation.

    INTEGRATED REACTOR SYSTEM FOR IONIC LIQUID-CATALYZED HYDROCARBON CONVERSION
    4.
    发明申请
    INTEGRATED REACTOR SYSTEM FOR IONIC LIQUID-CATALYZED HYDROCARBON CONVERSION 审中-公开

    公开(公告)号：US20190126232A1

    公开(公告)日：2019-05-02

    申请号：US15794104

    申请日：2017-10-26

    Applicant: Chevron U.S.A. Inc.

    Inventor： Michael John Girgis ,  Huping Luo

    IPC: B01J19/24 ,  C07C2/58 ,  B01J19/00

    Abstract: We provide an integrated reactor system for performing an ionic liquid-catalyzed hydrocarbon conversion, comprising: a. a bundle of a heat exchanger tubing that extends predominantly through an internal length of a hydrocarbon conversion reactor; b. baffles extending across at least a portion of the hydrocarbon conversion reactor; c. multiple high speed jet flow nozzles configured to direct an ionic liquid catalyst and reactants into the hydrocarbon conversion reactor, external to the heat exchanger tubing; and d. a settling zone internal to the hydrocarbon conversion reactor.

    FLUIDIZED BED REACTOR SYSTEM FOR CATALYTIC CRACKING OF LIGHT HYDROCARBONS
    6.
    发明申请
    FLUIDIZED BED REACTOR SYSTEM FOR CATALYTIC CRACKING OF LIGHT HYDROCARBONS 有权

    公开(公告)号：US20250163334A1

    公开(公告)日：2025-05-22

    申请号：US18826721

    申请日：2024-09-06

    Applicant: Chevron U.S.A. Inc.

    Inventor： Huping Luo ,  Xiaoying Ouyang ,  Christopher Declan Lane

    IPC: C10G11/18 ,  B01J8/38 ,  B01J38/30

    Abstract: A fluidized bed reactor system including a fluidized bed reactor configured to receive a heated light hydrocarbon feed stream flowing upwards and a heated regenerated catalyst at a temperature sufficient to crack the heated light hydrocarbon feed stream to produce a product effluent stream containing hydrogen and spent catalyst having coke deposits, a catalyst regeneration unit operatively connected to a bottom portion of the fluidized bed reactor, the catalyst regeneration unit being configured to receive the spent catalyst flowing downwards and combust the coke deposits to produce the heated regenerated catalyst and a heated gas effluent for generating the heated light hydrocarbon feed stream, and a riser externally attached to the fluidized bed reactor and the catalyst regeneration unit, the riser being configured to receive the heated regenerated catalyst and a gas-based stream to flow the heated regenerated catalyst upwards to the fluidized bed reactor.

    Reactor With Monolith Catalyst Blocks For Hydrogen Production
    7.
    发明申请
    Reactor With Monolith Catalyst Blocks For Hydrogen Production 有权

    公开(公告)号：US20250065287A1

    公开(公告)日：2025-02-27

    申请号：US18814252

    申请日：2024-08-23

    Applicant: Chevron U.S.A. Inc.

    Inventor： Xiaoying Ouyang ,  Huping Luo ,  Alexander E. Kuperman ,  Lin Li

    IPC: B01J8/04 ,  B01J8/06 ,  C01B3/26

    Abstract: A reactor uses catalyst blocks for conversion of light hydrocarbons to hydrogen and to liquid hydrocarbons. The catalyst blocks stacked on top of one another within the reactor facilitate conversion of the light hydrocarbons. Electric heaters can be arranged in a variety of orientations within the reactor to supply heat for the conversion reaction. Alternatively, the catalyst blocks can be located within reaction tubes within the reactor and heated by combustion of a fuel adjacent to the reaction tubes. When operated in a regeneration mode, coke that accumulates within the reactor is removed by oxidation.

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