Air separation apparatus
    81.
    发明授权
    Air separation apparatus 有权
    空气分离装置

    公开(公告)号:US09441878B2

    公开(公告)日:2016-09-13

    申请号:US14994637

    申请日:2016-01-13

    IPC分类号: F25J3/04

    摘要: A cryogenic air separation method and apparatus in which first and second liquid streams are produced. The first liquid stream has a higher oxygen content than air and can consist of a higher pressure distillation column bottoms and the second liquid stream, 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 is subcooled through indirect heat exchange with the first liquid stream and both of such streams are introduced into the lower pressure column. The second liquid stream is introduced into the lower pressure column above that point at which the crude liquid oxygen column bottoms or any portion thereof 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.

    摘要翻译: 一种生产第一和第二液体流的低温空气分离方法和装置。 第一液体流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(例如空气)组成,具有比第一液体流更低的氧含量,并且氩含量不低于 空气。 通过与第一液体流的间接热交换将第二液体流过冷,并且将这两个流引入低压塔。 将第二液体物流引入低于该粗液柱氧塔底部或其任何部分被引入低压塔的点以将液体与蒸汽的比例增加到低于第二液流的引入的点处,因此 ,减少塔顶内存在的氧气。

    Air separation method and apparatus
    82.
    发明授权
    Air separation method and apparatus 有权
    空气分离方法和装置

    公开(公告)号:US09279613B2

    公开(公告)日:2016-03-08

    申请号:US12727442

    申请日:2010-03-19

    IPC分类号: F25J3/04

    摘要: A cryogenic air separation method and apparatus in which first and second liquid streams are produced. The first liquid stream has a higher oxygen content than air and can consist of a higher pressure distillation column bottoms and the second liquid stream, 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 is subcooled through indirect heat exchange with the first liquid stream and both of such streams are introduced into the lower pressure column. The second liquid stream is introduced into the lower pressure column above that point at which the crude liquid oxygen column bottoms or any portion thereof 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.

    摘要翻译: 一种生产第一和第二液体流的低温空气分离方法和设备。 第一液体流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(例如空气)组成,具有比第一液体流更低的氧含量,并且氩含量不低于 空气。 通过与第一液体流的间接热交换将第二液体流过冷,并且将这两个流引入低压塔。 将第二液体物流引入低于该粗液柱氧塔底部或其任何部分被引入低压塔的点以将液体与蒸汽的比例增加到低于引入第二液流的点 ,减少塔顶内存在的氧气。

    PROCESS AND SYSTEM FOR REMOVING NITROGEN FROM LNG
    83.
    发明申请
    PROCESS AND SYSTEM FOR REMOVING NITROGEN FROM LNG 审中-公开
    从液化天然气中除去氮的工艺和系统

    公开(公告)号:US20150377551A1

    公开(公告)日:2015-12-31

    申请号:US14320149

    申请日:2014-06-30

    发明人: Hao Jiang

    IPC分类号: F25J3/02

    摘要: Processes and systems are provided for removing nitrogen from a hydrocarbon-containing gas to thereby recover a liquid natural gas (LNG) stream. In particular, the processes and systems described herein can be used to efficiently separate methane from nitrogen, which is an undesirable byproduct found in many hydrocarbon-containing gases used to produce LNG. The processes and systems described herein can utilize various refrigerant systems to separate and produce the LNG.

    摘要翻译: 提供了用于从含烃气体中除去氮气从而回收液态天然气(LNG)流的方法和系统。 特别地,本文描述的方法和系统可以用于有效地将甲烷与氮气分离,这是在用于生产LNG的许多含烃气体中发现的不期望的副产物。 本文描述的方法和系统可以利用各种制冷剂系统来分离和生产LNG。

    METHANOL TO OLEFINS PROCESS
    86.
    发明申请
    METHANOL TO OLEFINS PROCESS 有权
    甲醇到油脂过程

    公开(公告)号:US20120240615A1

    公开(公告)日:2012-09-27

    申请号:US13070722

    申请日:2011-03-24

    申请人: Stephen De Haan

    发明人: Stephen De Haan

    IPC分类号: F25J1/00 C07C1/20

    摘要: A process for chilling ethylene to required storage temperatures is disclosed, the process including: cooling an ethylene product from at least one of an ethylene production process and an ethylene recovery process via indirect heat exchange with a coolant at a temperature less than about −100° C. to decrease the temperature of the ethylene product; mixing a portion of the cooled ethylene product with methane to form the coolant; expanding at least one of the coolant, the methane, and the portion of the cooled ethylene to reduce a temperature of the coolant to less than −100° C. prior to the cooling; and feeding the heat exchanged coolant to at least one of the ethylene production process, the ethylene recovery process, and an open-loop refrigeration system.

    摘要翻译: 公开了一种将乙烯冷却至所需储存温度的方法,该方法包括:通过在低于约-100℃的温度下与冷却剂进行间接热交换从乙烯生产方法和乙烯回收方法中的至少一种冷却乙烯产物 C.降低乙烯产品的温度; 将一部分冷却的乙烯产物与甲烷混合以形成冷却剂; 在冷却之前将冷却剂,甲烷和冷却的乙烯的部分中的至少一个膨胀以将冷却剂的温度降低到小于-100℃; 以及将热交换的冷却剂供给至乙烯生产工艺,乙烯回收工艺和开环制冷系统中的至少一个。