Method and absorbent composition for recovering a gaseous component from a gas stream
    5.
    发明授权
    Method and absorbent composition for recovering a gaseous component from a gas stream 有权
    从气流中回收气态组分的方法和吸收组合物

    公开(公告)号:US08388737B2

    公开(公告)日:2013-03-05

    申请号:US12598598

    申请日:2008-05-29

    IPC分类号: B01D53/14

    摘要: A method and apparatus for recovering a gaseous component from an incoming gas stream is described. The incoming gas stream is contacted with a lean aqueous absorbing medium to absorb at least a portion of the gaseous component from the incoming gas stream to form a lean treated gas stream and a rich aqueous absorbing medium. At least a portion of the gaseous component is desorbed from the rich aqueous absorbing medium at a temperature to form an overhead gas stream and a regenerated aqueous absorbing medium. At least a portion of the overhead gas stream is treated to recover a condensate stream. At least a portion of the condensate stream is used to form a heated stream. At least a portion of the heated stream is recycled back to the desorbing step. Novel absorbing medium compositions to recover carbon dioxide and/or hydrogen sulfide are also described.

    摘要翻译: 描述了用于从进入的气流中回收气态成分的方法和装置。 将进入的气流与贫吸收水介质接触以从进入的气流吸收至少一部分气态组分以形成贫处理气流和富含水的吸收介质。 至少一部分气态组分在富含水吸收介质中在一定温度下解吸,形成塔顶气流和再生水溶液吸收介质。 顶部气流的至少一部分被处理以回收冷凝物流。 冷凝物流的至少一部分用于形成加热流。 加热的流的至少一部分被再循环回到解吸步骤。 还描述了回收二氧化碳和/或硫化氢的新型吸收介质组合物。