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    • 9. 发明授权
    • Device and method for combined purification and compression of hydrogen containing CO and the use thereof in fuel cell assemblies
    • 用于氢的CO的组合净化和压缩的装置和方法及其在燃料电池组件中的应用
    • US06361896B1
    • 2002-03-26
    • US09171368
    • 1999-03-04
    • Klaus EberleBernd RohlandJoachim ScholtaRaimund Stroebel
    • Klaus EberleBernd RohlandJoachim ScholtaRaimund Stroebel
    • H01M486
    • H01M8/0662B01D53/326C01B3/501C01B3/583C01B2203/0405C01B2203/044C01B2203/047H01M2300/0082
    • The invention relates to a device for combined purification and compression of hydrogen containing CO. Said device comprises a polymer electrolyte membrane (PEM) cell with a proton-conducting polymer membrane (3), an anode on one side of the membrane and a cathode (4) on the other side thereof. Said anode is in the form of a two-layer anode (5) which comprises a CO-oxidation-selective catalytic layer (1) on the side facing away from the membrane and an electrochemically active layer (2) for oxidation of the hydrogen to form protons on the side facing the membrane. The PEM cell also has a flat, porous gas distribution layer provided on the anode side and attached to a current collector. Consequently, the PEM cell resists differential pressures of at least approximately 10 bar. The invention also relates to a process for combined purification and compression of hydrogen containing CO using said device. The CO in the hydrogen containing CO is oxidized selectively to form CO2 in the PEM cell, and the hydrogen subsequently extensively free of CO is compressed by the PEM cell by electrochemical means at differential pressures of at least approximately 10 bar. The resultant hydrogen is suitable as fuel in PEM fuel cells for vehicles.
    • 本发明涉及一种用于组合纯化和压缩含氢CO的装置,所述装置包括具有质子传导聚合物膜(3)的聚合物电解质膜(PEM)电池,膜的一侧上的阳极和阴极( 4)在另一侧。 所述阳极为双层阳极(5)的形式,其包含在远离膜的一侧上的CO氧化选择性催化层(1)和用于氧化氢的电化学活性层(2) 在面向膜的一侧形成质子。 PEM电池还具有设置在阳极侧并连接到集电器的平坦的多孔气体分布层。 因此,PEM单元抵抗至少约10巴的差压。 本发明还涉及使用所述装置组合纯化和压缩含氢CO的方法。 含氢CO中的CO被选择性氧化以在PEM电池中形成CO 2,并且随后广泛不含CO的氢气通过电化学方式在至少约10巴的压差下被PEM电池压缩。 所得的氢气适用于车辆的PEM燃料电池中的燃料。