METHOD FOR SEPARATING A MIXTURE OF CARBON MONOXIDE, METHANE, HYDROGEN, AND OPTIONALLY NITROGEN BY CRYOGENIC DISTILLATION
    1.
    发明申请
    METHOD FOR SEPARATING A MIXTURE OF CARBON MONOXIDE, METHANE, HYDROGEN, AND OPTIONALLY NITROGEN BY CRYOGENIC DISTILLATION 审中-公开
    通过低温蒸馏分离一氧化碳,甲烷,氢气和选择性氮的混合物的方法

    公开(公告)号:WO2008087318A3

    公开(公告)日:2009-11-26

    申请号:PCT/FR2007052530

    申请日:2007-12-14

    IPC分类号: C01B32/40 F25J3/02

    摘要: The invention relates to a method for separating a mixture comprising at least carbon monoxide, hydrogen, and methane. According to said method, the mixture is separated by a first separating means (C1), at least one liquid fraction of the chamber of the separating means is sent to a product stripper (C2), and at least part of the liquid fraction is sent from the product stripper to a CO/CH4 separating column (C3) in order to produce a methane-enriched liquid flow and a gaseous flow enriched with carbon monoxide. The process is carried out under cold conditions at least partially as a result of a carbon monoxide cycle, said cycle at least partially ensuring the condensation at the top of the CO/CH4 separating column and/or the reboiling in the chamber of the product stripper and/or the reboiling in the chamber of the CO/CH4 separating column and/or the cooling of the mixture for the first separating means.

    摘要翻译: 本发明涉及一种分离至少包含一氧化碳,氢气和甲烷的混合物的方法。 根据所述方法,通过第一分离装置(C1)将混合物分离,将分离装置的室的至少一个液体馏分送至产物汽提器(C2),并将至少部分液体馏分送入 从产品汽提器到CO / CH4分离塔(C3),以产生富含甲烷的液体流和富含一氧化碳的气流。 该方法至少部分地由于一氧化碳循环在冷条件下进行,所述循环至少部分地确保在CO / CH4分离塔的顶部冷凝和/或产物汽提器的室中的再沸腾 和/或CO / CH4分离塔的室中的再沸腾和/或用于第一分离装置的混合物的冷却。