Air separation method and apparatus
    2.
    发明公开
    Air separation method and apparatus 有权
    Lufttrennverfahren und -vorrichtung

    公开(公告)号:EP2366969A2

    公开(公告)日:2011-09-21

    申请号:EP11158015.5

    申请日:2011-03-14

    IPC分类号: F25J3/04

    摘要: A cryogenic air separation method and apparatus in which first (68) and second (64) liquid streams are produced. The first liquid stream (68) has a higher oxygen content than air and can consist of a higher pressure distillation column bottoms and the second liquid stream (64), for instance, air, has a lower oxygen content than the first liquid stream and an argon content no less than the air. The second liquid stream (64) is subcooled through indirect heat exchange (118) with the first liquid stream (138) and both of such streams are introduced into the lower pressure column (30). The second liquid stream (152) is introduced into the lower pressure column (30) above that point at which the crude liquid oxygen column bottoms or any portion thereof (140,146,148) is introduced into the lower pressure column to increase a liquid to vapor ratio below the introduction of the second liquid stream and therefore, reduce the oxygen present within the column overhead (94).

    摘要翻译: 制造第一(68)和第二(64)液体流的低温空气分离方法和装置。 第一液体流(68)具有比空气更高的氧含量,并且可以由较高压力的蒸馏塔底部和第二液体流(64),例如空气组成,具有比第一液体流更低的氧含量和 氩气含量不低于空气。 通过与第一液体流(138)的间接热交换(118)将第二液体流(64)过冷,并且将这两个流引入低压塔(30)。 将第二液体流(152)引入低于塔底或其任何部分(140,146,148)被引入低压塔的点以下的低压塔(30),以将液体与蒸汽的比例降低到低于 引入第二液体流并因此减少柱塔顶(94)内存在的氧气。

    Air separation method and apparatus
    5.
    发明授权
    Air separation method and apparatus 有权
    空气分离方法和设备

    公开(公告)号:EP2366969B1

    公开(公告)日:2017-07-26

    申请号:EP11158015.5

    申请日:2011-03-14

    IPC分类号: F25J3/04

    摘要: A cryogenic air separation method and apparatus in which first (68) and second (64) liquid streams are produced. The first liquid stream (68) has a higher oxygen content than air and can consist of a higher pressure distillation column bottoms and the second liquid stream (64), for instance, air, has a lower oxygen content than the first liquid stream and an argon content no less than the air. The second liquid stream (64) is subcooled through indirect heat exchange (118) with the first liquid stream (138) and both of such streams are introduced into the lower pressure column (30). The second liquid stream (152) is introduced into the lower pressure column (30) above that point at which the crude liquid oxygen column bottoms or any portion thereof (140,146,148) is introduced into the lower pressure column to increase a liquid to vapor ratio below the introduction of the second liquid stream and therefore, reduce the oxygen present within the column overhead (94).

    摘要翻译: 一种低温空气分离方法和装置,其中产生第一(68)和第二(64)液体流。 第一液体流(68)具有比空气更高的氧含量并且可以由高压蒸馏塔底部组成并且第二液体流(64)例如空气具有比第一液体流低的氧含量和 氩气含量不低于空气。 第二液体流(64)通过与第一液体流(138)间接热交换(118)而被过冷,并且两种这样的流被引入低压塔(30)中。 将第二液体物流(152)引入低压塔(30)中的上方,在此处将粗液氧塔底部或其任何部分(140,146,148)引入低压塔中以将液体与蒸气的比例增加至低于 引入第二液体流并因此减少塔顶部(94)内存在的氧。