Method and apparatus for liquefying a gas or cooling a feed gas at supercritical pressure
    10.
    发明授权
    Method and apparatus for liquefying a gas or cooling a feed gas at supercritical pressure 有权
    用于液化气体或在超临界压力下冷却进料气体的方法和装置

    公开(公告)号:US09435582B2

    公开(公告)日:2016-09-06

    申请号:US14111349

    申请日:2012-04-12

    IPC分类号: F25J1/00 F25J1/02 F25J3/06

    摘要: The invention relates to a method for liquefying a feed gas or cooling a feed gas at supercritical pressure, in which the feed gas mixed with a cycle gas is condensed or cooled in order to form a supercritical gas or liquid at the first pressure, the liquid at the first pressure is cooled in a first heat exchanger (E2), the cooled liquid is removed from the first exchanger and expanded up to a second pressure that is lower than the first pressure in order to form an expanded flow, at least one portion of the expanded flow is cooled in a second heat exchanger, the expanded flow is removed from the second heat exchanger (E2), said flow is split into at least two portions, including a first portion and a second portion, the first portion of the expanded flow constituting the liquefied product, the second portion and preferably a third portion being vaporized in the second heat exchanger and the thus-formed at least one cycle gas is then mixed with the feed gas and compressed in a compressor, before or after being mixed with the feed gas.

    摘要翻译: 本发明涉及一种用于液化进料气体或在超临界压力下冷却进料气体的方法,其中与循环气体混合的进料气体被冷凝或冷却以在第一压力下形成超临界气体或液体,液体 在第一压力下,在第一热交换器(E2)中冷却,将冷却的液体从第一交换器中移出并膨胀至低于第一压力的第二压力以形成膨胀流,至少一部分 膨胀的流体在第二热交换器中冷却,膨胀的流动从第二热交换器(E2)移除,所述流动分成至少两个部分,包括第一部分和第二部分,第一部分 构成液化产物的膨胀流,第二部分和优选在第二热交换器中蒸发的第三部分,然后将由此形成的至少一个循环气体与进料气体混合并压缩 或者在与进料气体混合之前或之后。