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    Thermal management of a solid oxide fuel cell system
    11.
    发明授权
    Thermal management of a solid oxide fuel cell system 有权

    公开(公告)号：US11742498B1

    公开(公告)日：2023-08-29

    申请号：US16893850

    申请日：2020-06-05

    Applicant: PRECISION COMBUSTION, INC.

    Inventor： Saurabh Vilekar ,  Christian Junaedi ,  Eric Edward Allocco ,  Christopher Howard

    IPC: H01M8/00 ,  H01M8/04007 ,  H01M8/04701

    CPC classification number: H01M8/04074 ,  H01M8/04708 ,  H01M8/04716

    Abstract: This invention pertains to methods for controlling thermal aspects during operation of a solid oxide fuel cell (SOFC) system, including controlling target cathode and anode inlet stream temperatures and differential temperatures defined by the anode and cathode inlet and outlet streams. In one aspect, thermal management is achieved by controlling a combustion stream temperature and by employing one heat exchanger having two cold side pathways. In another aspect, thermal management is achieved by controlling a temperature of a combustion stream distributed through a cathode feed heat exchanger and an anode feed heat exchanger, optionally with bypassing a portion of the cathode air stream around the cathode feed heat exchanger. In another aspect, thermal management is achieved by employing a cathode feed heat exchanger to heat a cathode air stream and by employing an equalizer heat exchanger to equilibrate temperatures of the resulting heated cathode air stream and an anode fuel stream.

    REGENERATIVE SOLID OXIDE STACK
    14.
    发明申请
    REGENERATIVE SOLID OXIDE STACK 审中-公开

    公开(公告)号：US20200020962A1

    公开(公告)日：2020-01-16

    申请号：US16336137

    申请日：2017-10-16

    Applicant: PRECISION COMBUSTION, INC.

    Inventor： Christian Junaedi ,  Subir Roychoudhury ,  Kyle Hawley ,  Saurabh Vilekar

    IPC: H01M8/04007 ,  H01M8/0612 ,  C25B1/06 ,  C25B9/08 ,  C25B9/18 ,  H01M8/2425 ,  H01M8/0258 ,  H01M8/2483 ,  H01M8/18

    Abstract: An individual solid oxide cell (SOC) constructed of a sandwich configuration including in the following order: an oxygen electrode, a solid oxide electrolyte, a fuel electrode, a fuel manifold, and at least one layer of mesh. In one embodiment, the mesh supports a reforming catalyst resulting in a solid oxide fuel cell (SOFC) having a reformer embedded therein. The reformer-modified SOFC functions internally to steam reform or partially oxidize a gaseous hydrocarbon, e.g. methane, to a gaseous reformate of hydrogen and carbon monoxide, which is converted in the SOC to water, carbon dioxide, or a mixture thereof, and an electrical current. In another embodiment, an electrical insulator is disposed between the fuel manifold and the mesh resulting in a solid oxide electrolysis cell (SOEC), which functions to electrolyze water and/or carbon dioxide.

    INTEGRATED POWER GENERATION SYSTEM
    15.
    发明申请
    INTEGRATED POWER GENERATION SYSTEM 有权

    公开(公告)号：US20210384537A1

    公开(公告)日：2021-12-09

    申请号：US17285542

    申请日：2019-11-04

    Applicant: PRECISION COMBUSTION, INC.

    Inventor： Subir Roychoudhury ,  Timothy LaBreche ,  Saurabh Vilekar ,  Chunming Qi

    IPC: H01M8/0612 ,  H01M8/04111 ,  H01M8/04014 ,  H01M8/04119

    Abstract: An integrated power generation system including: a hotbox containing a steam reformer and at least one solid oxide fuel cell (SOFC) stack; a condenser, a combustor, a heater, and a turbomachine comprising a compressor and an expander. The steam reformer is configured to convert a hydrocarbon fuel and steam into a stack fuel. The SOFC stack is configured to convert the stack fuel into a first anode waste gas. The condenser functions to remove water from the first anode waste gas, thereby producing a second anode waste gas of higher fuel energy density. The combustor bums the second anode waste gas with release of exothermic heat. The heater thermally transmits heat from an expanded combustion product to water collected in the condenser, so as to generate steam. A steam line fluidly connects the heater to the steam reformer.

    SOLID OXIDE FUEL CELL WITH INTERNAL REFORMER
    19.
    发明申请
    SOLID OXIDE FUEL CELL WITH INTERNAL REFORMER 审中-公开

    公开(公告)号：US20190226101A1

    公开(公告)日：2019-07-25

    申请号：US16336146

    申请日：2017-10-16

    Applicant: PRECISION COMBUSTION, INC.

    Inventor： Christian Junaedi ,  Subir Roychoudhury ,  Kyle Hawley ,  Saurabh Vilekar

    IPC: C25B9/08 ,  C25B1/06 ,  C25B15/02 ,  C25B15/08 ,  C25B9/20 ,  H01M8/04007 ,  H01M8/0612 ,  H01M8/12 ,  H01M8/18

    Abstract: An individual solid oxide cell (SOC) constructed of a sandwich configuration including in the following order: an oxygen electrode, a solid oxide electrolyte, a fuel electrode, a fuel manifold, and at least one layer of mesh. In one embodiment, the mesh supports a reforming catalyst resulting in a solid oxide fuel cell (SOFC) having a reformer embedded therein. The reformer-modified SOFC functions internally to steam reform or partially oxidize a gaseous hydrocarbon, e.g. methane, to a gaseous reformate of hydrogen and carbon monoxide, which is converted in the SOC to water, carbon dioxide, or a mixture thereof, and an electrical current. In another embodiment, an electrical insulator is disposed between the fuel manifold and the mesh resulting in a solid oxide electrolysis cell (SOEC), which functions to electrolyze water and/or carbon dioxide.

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