Bipolar separator plates for electrochemical cell stacks
    43.
    发明授权
    Bipolar separator plates for electrochemical cell stacks 失效
    用于电化学电池组的双极隔板

    公开(公告)号:US6146780A

    公开(公告)日:2000-11-14

    申请号:US787271

    申请日:1997-01-24

    摘要: The present invention provides a separator for electrochemical cells, comprising a gas barrier having an electrically conducting pathway extending therethrough and a porous, electrically conducting member in electrical contact with each side of the electrically conducting pathway. In another aspect of the invention, a separator for electrochemical cells is provided comprising a porous, electrically conducting sheet and a gas impermeable material disposed within a portion of the sheet to form a gas barrier. In yet another aspect of the invention, a separator for electrochemical cells is provided comprising two porous, electrically conducting sheets and an electrically conducting gas barrier disposed in electrical contact between the sheets.

    摘要翻译: 本发明提供了一种用于电化学电池的隔板,其包括具有延伸穿过其中的导电路径的气体阻挡层和与导电路径的每一侧电接触的多孔导电构件。 在本发明的另一方面,提供了一种用于电化学电池的隔板,其包括多孔的导电片和设置在片的一部分内以形成气体屏障的不透气材料。 在本发明的另一方面,提供了一种用于电化学电池的隔板,其包括两个多孔的导电片和设置在片之间电接触的导电气体屏障。

    Electrochemical synthesis of ammonia
    46.
    发明授权
    Electrochemical synthesis of ammonia 失效
    电化学合成氨

    公开(公告)号:US07314544B2

    公开(公告)日:2008-01-01

    申请号:US11212038

    申请日:2005-08-25

    IPC分类号: C25B1/00

    CPC分类号: C25B1/00

    摘要: A method for the anodic electrochemical synthesis of ammonia gas. The method comprises providing an electrolyte between an anode and a cathode, providing nitrogen and hydrogen gases to the cathode, oxidizing negatively charged nitrogen-containing species and negatively charged hydrogen-containing species present in the electrolyte at the anode to form adsorbed nitrogen species and adsorbed hydrogen species, respectively, and reacting the adsorbed nitrogen species with the adsorbed hydrogen species to form ammonia. Nitrogen and hydrogen gases may be provided through a porous cathode substrate. The negatively charged nitrogen-containing species in the electrolyte may be produced by reducing nitrogen gas at the cathode and/or by supplying a nitrogen-containing salt, such as lithium nitride, into the molten salt electrolyte. Similarly, the negatively charged hydrogen-containing species in the electrolyte may be produced by reducing hydrogen gas at the cathode and/or by supplying a hydrogen-containing salt, such as lithium hydride, into the molten salt electrolyte.

    摘要翻译: 一种用于阳极电化学合成氨气的方法。 该方法包括在阳极和阴极之间提供电解质,向阴极提供氮气和氢气,在阳极处氧化带负电荷的含氮物质和存在于电解质中的带负电荷的含氢物质以形成吸附的氮物质并吸附 氢物种,并将吸附的氮物质与吸附的氢物质反应形成氨。 可以通过多孔阴极基底提供氮气和氢气。 电解质中带负电的含氮物质可以通过在阴极处还原氮气和/或通过向熔融盐电解质中提供氮化钠等含氮盐来制备。 类似地,电解质中带负电荷的含氢物质可以通过还原阴极处的氢气和/或通过向熔融盐电解质中提供氢化锂等含氢盐来制备。

    Hybrid catalyst heating system with water removal for enhanced emissions control
    49.
    发明授权
    Hybrid catalyst heating system with water removal for enhanced emissions control 失效
    混合催化剂加热系统具有去除排水,增强排放控制

    公开(公告)号:US06235254B1

    公开(公告)日:2001-05-22

    申请号:US08886791

    申请日:1997-07-01

    IPC分类号: B01D4700

    摘要: The present invention provides a method and apparatus for heating a catalytic converter at least to a light off temperature. In accordance with the invention, the catalytic converter may be heated using a novel monolith construction, electrical heating, catalytic combination of a fuel and oxygen or combinations of these methods. Heating or thermally conditioning a catalyst in accordance with the invention rapidly brings the catalyst up to the light off temperature for the efficient conversion of pollutant gases, such as unacceptable emissions emanating from an internal combustion engine, into water, carbon dioxide and other acceptable emissions. In particular, the invention provides efficient heating of the catalytic converter despite the potential presence of water on the catalyst during startup.

    摘要翻译: 本发明提供一种用于将催化转化器加热至少至轻度关闭温度的方法和装置。 根据本发明,可以使用新颖的整体结构,电加热,燃料和氧气的催化组合或这些方法的组合来加热催化转化器。 根据本发明的加热或热调节催化剂快速地使催化剂达到关闭温度,以便有效地将污染气体(例如从内燃机排放的不可接受的排放物)转化为水,二氧化碳和其它可接受的排放物。 特别地,本发明提供了催化转化器的有效加热,尽管在起动期间催化剂上存在水可能存在。