Light gas component separation from a carbon dioxide mixture
    11.
    发明申请
    Light gas component separation from a carbon dioxide mixture 有权
    轻质气体组分与二氧化碳混合物分离

    公开(公告)号:US20060107691A1

    公开(公告)日:2006-05-25

    申请号:US10991458

    申请日:2004-11-19

    Applicant: Henry Howard

    Inventor: Henry Howard

    Abstract: A method of separating one or more light components, such as helium, from a carbon dioxide containing stream. A two-phase stream is obtained, at least in part, by cooling a pressurized feed stream to at least partially condense such stream. The stream that is subsequently degassed to produce a first vapor stream enriched in the light component(s) and a first liquid stream containing an entrained fraction of the light component(s). The first liquid stream is expanded to create another two-phase stream that is degasified to produce a second vapor stream that is also enriched in the light component(s) and a second liquid stream having an enriched carbon dioxide content. The second liquid stream is repressurized and vaporized. In case of a supercritical feed, the pressurized feed stream is expanded after having been cooled. Thereafter, the feed is degassed to produce the light component enriched vapor stream and a liquid stream enriched in the carbon dioxide. The resultant vapor streams, enriched in the light component(s) may then be further processed to isolate the light components.

    Abstract translation: 从含二氧化碳的流中分离一种或多种轻组分如氦的方法。 至少部分地通过冷却加压进料流以至少部分地冷凝该流而获得两相流。 随后脱气以产生富含光组分的第一蒸气流和含有轻组分夹带部分的第一液流。 将第一液体流膨胀以产生另外的两相流,其被脱气以产生还富含轻组分的第二蒸气流和具有富二氧化碳含量的第二液流。 第二液体流被再加压和蒸发。 在超临界进料的情况下,加压进料流在冷却后膨胀。 此后,将进料脱气以产生富含轻质成分的蒸气物流和富含二氧化碳的液体物流。 然后可以进一步处理富含光成分的所得蒸汽流以分离光组分。

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