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    REVERSE FLOW REACTORS WITH SELECTIVE FLUE GAS MANAGEMENT
    17.
    发明申请
    REVERSE FLOW REACTORS WITH SELECTIVE FLUE GAS MANAGEMENT 审中-公开

    公开(公告)号：US20200338522A1

    公开(公告)日：2020-10-29

    申请号：US16838548

    申请日：2020-04-02

    Applicant: ExxonMobil Research and Engineering Company

    Inventor： Everett J. O'Neal ,  Anastasios I. Skoulidas

    IPC: B01J19/24 ,  C01B3/38 ,  B01J19/00

    Abstract: Systems and methods are provided for improving the operation of groups of reverse flow reactors by operating reactors in a regeneration portion of the reaction cycle to have improved flue gas management. The flue gas from reactor(s) at a later portion of the regeneration step can be selectively used for recycle back to the reactors as a diluent/heat transport fluid. The flue gas from a reactor earlier in a regeneration step can be preferentially used as the gas vented from the system to maintain the desired volume of gas within the system. This results in preferential use of higher temperature flue gas for recycle and lower temperature flue gas for venting from the system. This improved use of flue gas within a reaction system including reverse flow reactors can allow for improved reaction performance while reducing or minimizing heat losses during the regeneration portion of the reaction cycle.

    HYDROGEN PRODUCTION WITH INTEGRATED CO2 CAPTURE
    18.
    发明申请
    HYDROGEN PRODUCTION WITH INTEGRATED CO2 CAPTURE 审中-公开

    公开(公告)号：US20200331751A1

    公开(公告)日：2020-10-22

    申请号：US16838856

    申请日：2020-04-02

    Applicant: ExxonMobil Research and Engineering Company

    Inventor： Everett J. O'Neal ,  Anastasios I. Skoulidas ,  Zhiyan Wang

    IPC: C01B3/38 ,  C01B3/48 ,  C01B3/56 ,  B01J19/24 ,  B01J38/40 ,  B01D53/047

    Abstract: Systems and methods are provided for performing hydrocarbon reforming within a reverse flow reactor environment (or another reactor environment with flows in opposing directions) while improving management of CO2 generated during operation of the reactor. The improved management of CO2 is achieved by making one or more changes to the operation of the reverse flow reactor. The changes can include using an air separation unit to provide an oxygen source with a reduced or minimized content of nitrogen and/or operating the reactor at elevated pressure during the regeneration stage. By operating the regeneration at elevated pressure, a regeneration flue gas can be generated that is enriched in CO2 at elevated pressure. The CO2-enriched stream can include primarily water as a contaminant, which can be removed by cooling while substantially maintaining the pressure of the stream. This can facilitate subsequent recovery and use of the CO2.

    Process intensification for reverse flow reactors
    20.
    发明授权
    Process intensification for reverse flow reactors 有权

    公开(公告)号：US11220429B2

    公开(公告)日：2022-01-11

    申请号：US16838726

    申请日：2020-04-02

    Applicant: ExxonMobil Research and Engineering Company

    Inventor： Anastasios I. Skoulidas ,  Everett J. O'Neal ,  Joseph E. Gatt ,  Anjaneya S. Kovvali

    IPC: C01B3/48 ,  C07C1/04 ,  C07C2/06

    Abstract: Systems and methods are provided for improving thermal management and/or efficiency of reaction systems including a reverse flow reactor for performance of at least one endothermic reaction and at least one supplemental exothermic reaction. The supplemental exothermic reaction can be performed in the recuperation zone of the reverse flow reactor system. By integrating the supplemental exothermic reaction into the recuperation zone, the heat generated from the supplemental exothermic reaction can be absorbed by heat transfer surfaces in the recuperation zone. The adsorbed heat can then be used to heat at least one of the fuel and the oxidant for the combustion reaction performed during regeneration, thus reducing the amount of combustion that is needed to achieve a desired temperature profile at the end of the regeneration step.

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