Electrochemical process for oxidation of alkanes to alkenes
    1.
    发明授权
    Electrochemical process for oxidation of alkanes to alkenes 失效
    将烷烃氧化成烯烃的电化学工艺

    公开(公告)号:US07338587B2

    公开(公告)日:2008-03-04

    申请号:US10415885

    申请日:2001-11-09

    IPC分类号: C25B1/00 C25B3/00

    摘要: An electrochemical process for the oxidation of an alkane to at least one corresponding alkene uses an electrochemical cell having an anode chamber on one side of a proton conducting medium, and a cathode chamber on the other side of the said medium. The alkane is oxidized in the anode chamber to produce at least one corresponding alkene and protons are transferred through a proton conducting membrane to the cathode chamber where protons combine with a proton acceptor, while generating electricity and water. An apparatus for use in the process is also provided.

    摘要翻译: 将烷烃氧化成至少一种相应的烯烃的电化学方法使用在质子传导介质的一侧具有阳极室的电化学电池和在所述介质的另一侧上的阴极室。 烷烃在阳极室中被氧化以产生至少一种对应的烯烃,并且质子通过质子传导膜转移到阴极室,其中质子与质子受体结合,同时产生电和水。 还提供了一种用于该方法的设备。

    Electrochemical oxidation of hydrogen sulfide
    2.
    发明授权
    Electrochemical oxidation of hydrogen sulfide 失效
    电化学氧化硫化氢

    公开(公告)号:US06241871B1

    公开(公告)日:2001-06-05

    申请号:US09314106

    申请日:1999-05-19

    IPC分类号: C25C100

    摘要: The invention relates to a process for gas phase electrochemical oxidation of H2S to sulfur and water or steam using an electrolysis cell having an anode chamber on one side of a solid proton conducting membrane and a cathode chamber on the other side of the membrane. The process comprises the steps of passing H2S-containing gas through the anode chamber to contact a catalytic anode, where it reacts to produce elemental sulfur, protons and electrons. The protons pass through the membrane from the anode chamber to the cathode chamber. An oxygen-containing gas is passed through the cathode chamber to contact the catalytic cathode, where it reacts with protons and electrons to produce water or steam. During the process, both the anode chamber and cathode chamber are maintained at a temperature of at least 120° C. and an elevated pressure sufficient to keep the membrane moist. Sulfur is obtained in liquid or vapor form and is removed from the anode chamber while water or steam is removed from the cathode chamber. An electric current can be withdrawn from the anode and cathode. The cell can also be operated in the electrolysis mode to produce sulfur and hydrogen.

    摘要翻译: 本发明涉及使用在固体质子传导膜的一侧具有阳极室和膜的另一侧上的阴极室的电解槽将气相电化学氧化成硫和水或蒸汽的方法。 该方法包括以下步骤:使含有H 2 S的气体通过阳极室与催化阳极接触,在该催化阳极反应产生元素硫,质子和电子。 质子通过膜从阳极室传递到阴极室。 含氧气体通过阴极室与催化阴极接触,在该催化阴极与质子和电子反应产生水或蒸汽。 在该过程中,阳极室和阴极室都保持在至少120℃的温度和足以使膜保持湿润的升高的压力。 硫以液体或蒸气形式获得,并从阳极室中取出,同时从阴极室除去水或蒸汽。 可以从阳极和阴极抽出电流。 电池也可以在电解模式下操作以产生硫和氢。