Process for the two-stage separation of ammonia
    1.
    发明授权
    Process for the two-stage separation of ammonia 失效
    二阶段氨分离工艺

    公开(公告)号:US4149857A

    公开(公告)日:1979-04-17

    申请号:US883611

    申请日:1978-03-06

    IPC分类号: B01D53/14 C01C1/12 B01D19/00

    摘要: The invention relates to a process for the separation of condensable and absorbable gas components having a critical temperature above 30.degree. C. from a mixture with inert gases, being absorbable at most in a little measure and the proportions of the components of said mixture varying widely, by two-stage absorption and simultaneous compression of the cleaned gas and the separated components to different pressures, in which the varying composition of the gas mixture to be separated is equalized in a first absorption stage so that at least temporarily part of the absorbable components of the mixture is absorbed. The remaining gas mixture is compressed and then introduced into a second absorption stage, wherein are obtained an inert gas mixture largely free from absorbable components and a solution rich in absorbable components, from which the absorbable components of the gas mixture are separated through subsequent multi-stage thermal desorption, the absorbent being fed back into the process.

    摘要翻译: 本发明涉及一种将具有临界温度高于30℃的可冷凝和可吸收气体组分与惰性气体混合物分离的方法,该方法最多可在一定程度上吸收,并且所述混合物组分的比例变化很大 通过将清洁的气体和分离的组分两步吸收和同时压缩到不同的压力,其中要分离的气体混合物的变化组成在第一吸收阶段相等,使得至少暂时可吸收组分的一部分 的混合物被吸收。 剩余的气体混合物被压缩,然后被引入第二吸收阶段,其中获得大量不含可吸收组分的惰性气体混合物和富含可吸收组分的溶液,气体混合物的可吸收组分从该混合物的后续多层分离, 阶段热解吸,吸收剂被反馈到该过程中。