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公开(公告)号:US20120000243A1
公开(公告)日:2012-01-05
申请号:US13138574
申请日:2010-03-05
IPC分类号: F25J3/08
CPC分类号: F25J3/0223 , C01B3/16 , C01B3/506 , C01B2203/046 , C01B2203/0475 , C01B2203/0485 , C01B2203/0495 , C01B2203/86 , F25J3/0252 , F25J3/0266 , F25J3/0625 , F25J3/0655 , F25J3/067 , F25J2200/74 , F25J2205/04 , F25J2210/06 , F25J2220/82 , F25J2230/20 , F25J2230/30 , F25J2235/80 , F25J2260/80 , F25J2270/06 , F25J2270/12 , F25J2270/60 , F25J2270/66 , F25J2270/902 , F25J2290/12 , Y02C10/12 , Y02P20/152 , Y02P30/30
摘要: A process is described for removing carbon dioxide from a synthesis gas feed stream in a cryogenic separation plant. In an example described the synthesis gas feed stream (3) comprises 40 to 65 mole % hydrogen and is fed to a single stage or a first stage of a series of separation stages (120, 103, 104) at a pressure in the range of 46 to 90 bar absolute. The single stage or a stage of the series is operated at a temperature in the range of −53 to −48° C. and a pressure in the range of 44 to 90 bar absolute. In some examples, the single stage or the combined stages of the series remove 70 to 80% of the total moles of carbon dioxide in the synthesis gas feed stream. Liquefied C02 product stream(s) discharged from the stage (s) (7,10,13) of the cryogenic separation plant may be sequestrated and/or used in a chemical process (71).
摘要翻译: 描述了一种从低温分离装置中的合成气进料流中除去二氧化碳的方法。 在所描述的实例中,合成气进料流(3)包含40至65摩尔%的氢气,并且在一系列分离级(120,103,104)的单级或第一级中以 46至90巴绝对。 该系列的单级或级级在-53至-48℃范围内的温度和44至90巴绝对压力范围内工作。 在一些实例中,该系列的单级或组合级除去合成气进料流中二氧化碳总摩尔数的70-80%。 从低温分离装置的阶段(7,10,13)排出的液化CO 2产物流可以在化学过程中被螯合和/或使用(71)。