Thermal swing adsorption process
    1.
    发明授权
    Thermal swing adsorption process 失效
    热变形吸附过程

    公开(公告)号:US06432171B1

    公开(公告)日:2002-08-13

    申请号:US09648984

    申请日:2000-08-28

    IPC分类号: B01D5304

    摘要: The present invention provides for a thermal swing adsorption process for the removal of trace impurities such as oxides of nitrogen and hydrocarbons from air prior to its separation by cryogenic distillation. The process may utilize three adsorbent layers, the first primarily removes water; the second primarily removes carbon dioxide; and the third layer is a composite adsorbent layer which removes the oxides of nitrogen and hydrocarbons from the air stream. Another embodiment employs a two layer adsorbent system to remove the impurities. Additionally, a single layer of composite adsorbent may be used to remove water, carbon dioxide, oxides of nitrogen, and hydrocarbons from the air stream.

    摘要翻译: 本发明提供一种用于在通过低温蒸馏分离之前从空气中除去微量杂质如氮氧化物和烃的热变形吸附方法。 该方法可以使用三个吸附剂层,第一个主要是去除水; 第二个主要是去除二氧化碳; 并且第三层是从空气流中除去氮和碳氢化合物的复合吸附剂层。 另一个实施方案采用双层吸附剂系统来除去杂质。 此外,单层复合吸附剂可用于从空气流中除去水,二氧化碳,氮氧化物和碳氢化合物。