High performance internal reforming unit for high temperature fuel cells
    82.
    发明授权
    High performance internal reforming unit for high temperature fuel cells 有权
    用于高温燃料电池的高性能内部重整单元

    公开(公告)号:US07431746B2

    公开(公告)日:2008-10-07

    申请号:US11030747

    申请日:2004-12-09

    Abstract: A fuel reformer having an enclosure with first and second opposing surfaces, a sidewall connecting the first and second opposing surfaces and an inlet port and an outlet port in the sidewall. A plate assembly supporting a catalyst and baffles are also disposed in the enclosure. A main baffle extends into the enclosure from a point of the sidewall between the inlet and outlet ports. The main baffle cooperates with the enclosure and the plate assembly to establish a path for the flow of fuel gas through the reformer from the inlet port to the outlet port. At least a first directing baffle extends in the enclosure from one of the sidewall and the main baffle and cooperates with the plate assembly and the enclosure to alter the gas flow path. Desired graded catalyst loading pattern has been defined for optimized thermal management for the internal reforming high temperature fuel cells so as to achieve high cell performance.

    Abstract translation: 一种燃料重整器,具有具有第一和第二相对表面的外壳,连接第一和第二相对表面的侧壁以及侧壁中的入口和出口。 支撑催化剂和挡板的板组件也设置在外壳中。 主挡板从入口和出口之间的侧壁的一点延伸到外壳中。 主挡板与外壳和板组件协同工作,以建立通过重整器的燃料气体从入口到出口的路径。 至少第一导向挡板在外壳中从侧壁和主挡板中的一个延伸,并与板组件和外壳配合以改变气体流动路径。 已经定义了所需的分级催化剂负载模式,用于内部重整高温燃料电池的优化热管理,以实现高电池性能。

    Fuel cell end unit with integrated heat exchanger
    83.
    发明授权
    Fuel cell end unit with integrated heat exchanger 有权
    带集成热交换器的燃料电池单元

    公开(公告)号:US07393605B2

    公开(公告)日:2008-07-01

    申请号:US11436748

    申请日:2006-05-18

    Abstract: An end unit for a fuel cell stack having a plurality of fuel cell stacked in a first direction, the end unit for stacking in the first direction adjacent an end fuel cell in the fuel cell stack. The end unit separates a current collection post from the end cell of the fuel cell stack and comprises a first wall being adjacent the end cell when the end unit is stacked in the first direction in the fuel cell stack, a second wall opposing the first wall and adjacent the current collection post when the end unit is stacked in the first direction in the stack, a first side wall connecting the first and second walls, a second side wall transverse to the first side wall and connecting the first and second walls, a third side wall opposing the first side wall and connecting the first and second walls, a fourth side wall opposing the second side wall and connecting the first and second walls, with the first and second walls and the first, second, third and fourth side walls forming an enclosure, and a plurality of electrically conductive posts disposed within the enclosure and extending between the first and second walls for providing a structure which restricts electrical current flow from the first fuel cell stack to the current collection post when the end unit is stacked in the first direction in the fuel cell stack.

    Abstract translation: 一种用于具有沿第一方向堆叠的多个燃料电池的燃料电池堆的端部单元,所述端部单元用于沿与所述燃料电池堆中的端部燃料电池相邻的所述第一方向堆叠。 末端单元将电流收集柱与燃料电池堆的端电池分开,并且包括当端单元沿燃料电池堆中的第一方向堆叠时与第一电池相邻的第一壁,与第一壁相对的第二壁 并且当所述端部单元沿着所述堆叠中的所述第一方向堆叠时,邻近所述集流柱,连接所述第一壁和所述第二壁的第一侧壁,横向于所述第一侧壁并连接所述第一壁和所述第二壁的第二侧壁, 与所述第一侧壁相对并且连接所述第一和第二壁的第三侧壁,与所述第二侧壁相对并且将所述第一和第二壁与所述第一壁和所述第二壁以及所述第一,第二,第三和第四侧壁 形成外壳,以及设置在外壳内并在第一和第二壁之间延伸的多个导电柱,用于提供限制电流流动的结构 当所述端部单元沿所述第一方向堆叠在所述燃料电池堆中时,从所述第一燃料电池堆到所述集电柱。

    CARBON DIOXIDE PRODUCTION FROM CARBONATE FUEL CELLS

    公开(公告)号:US20240154142A1

    公开(公告)日:2024-05-09

    申请号:US18417088

    申请日:2024-01-19

    CPC classification number: H01M8/0668 H01M8/04761 H01M2008/147

    Abstract: A fuel cell system includes a fuel cell stack having a plurality of fuel cells that each contain a plurality of fuel electrodes and air electrodes. The system includes a fuel receiving unit connected to the fuel cell stack, which receives a hydrocarbon fuel from a fuel supply. The system includes a fuel exhaust processing unit fluidly coupled to the fuel cell stack by a slip stream, where the fuel exhaust processing unit processes fuel exhaust from the fuel cell stack, and the slip stream is fluidly connected to an exhaust stream flowing from the fuel cell stack. The fuel processing unit removes a first portion of carbon dioxide (CO2) from fuel exhaust within the slip stream, outputs the first portion of CO2 in a first stream, and outputs a second portion of CO2 remaining from the fuel exhaust in the slip stream into a second stream, which includes hydrogen.

    SYSTEM INCLUDING FUEL CELL ASSEMBLY VOLTAGE MONITOR

    公开(公告)号:US20230094726A1

    公开(公告)日:2023-03-30

    申请号:US18072287

    申请日:2022-11-30

    Abstract: A method for controlling a carbon dioxide utilization in a fuel cell assembly includes: measuring a voltage across the fuel cell assembly; determining an estimated carbon dioxide utilization of the fuel cell assembly based on at least the measured voltage across the fuel cell assembly by determining an expected voltage of the fuel cell assembly based on at least a temperature of the fuel cell assembly, a current density across the fuel cell assembly, a fuel utilization of the fuel cell assembly, and a cathode oxygen utilization of the fuel cell assembly; determining the estimated carbon dioxide utilization based on a comparison between the measured voltage and the determined expected voltage; comparing the determined estimated carbon dioxide utilization to a predetermined threshold utilization; and upon determining that the determined estimated carbon dioxide utilization is higher than the predetermined threshold utilization, reducing the carbon utilization of the fuel cell assembly.

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