Membrane-augmented manufacture of cumene
    4.
    发明授权
    Membrane-augmented manufacture of cumene 失效
    异丙苯的膜增强制造

    公开(公告)号:US06525236B1

    公开(公告)日:2003-02-25

    申请号:US10144363

    申请日:2002-05-13

    IPC分类号: C07C7144

    CPC分类号: C07C29/04 B01D53/22 C07C31/10

    摘要: A process for manufacturing cumene by reacting propylene with benzene, including treating a vent stream from the reaction zone, to recover propylene for return to the reactor. The process involves using a gas separation membrane to separate propylene from propane in the reactor vent stream. The membrane separation step results in a residue stream typically containing as much as 30%, 40% or more propane, which is vented from the process, and a permeate stream containing 95% or less propylene, which is recirculated to the reactor.

    摘要翻译: 一种通过使丙烯与苯反应制造枯烯的方法,包括处理来自反应区的排出物流,回收丙烯以返回反应器。 该方法包括使用气体分离膜在反应器排气流中从丙烷分离丙烯。 膜分离步骤导致通常含有多达30%,40%或更多的丙烷的残余物流,其从该方法排出,以及含有95%或更少丙烯的渗透物流,其被再循环到反应器中。

    Membrane-augmented manufacture of propylene derivatives
    5.
    发明授权
    Membrane-augmented manufacture of propylene derivatives 有权
    膜增强丙烯衍生物的制造

    公开(公告)号:US06414202B1

    公开(公告)日:2002-07-02

    申请号:US09651483

    申请日:2000-08-30

    IPC分类号: C07C2904

    CPC分类号: C07C29/04 B01D53/22 C07C31/10

    摘要: A process for manufacturing isopropyl alcohol by reacting propylene with a reagent, including treating a vent stream from the reaction zone, to recover propylene for return to the reactor. The process involves using a gas separation membrane to separate propylene from propane in the reactor vent stream. The membrane separation step results in a residue stream typically containing as much as 30% propane or more, which is vented from the process, and a permeate stream typically containing 95% or less propylene, which is recirculated to the reactor.

    摘要翻译: 丙烯与试剂反应生产异丙醇的方法,包括处理来自反应区的排出物流,回收丙烯以返回反应器。 该方法包括使用气体分离膜在反应器排气流中从丙烷分离丙烯。 膜分离步骤导致通常含有多达30%丙烷或更多的残余物流,其从该方法排出,并且通常含有95%或更少丙烯的渗透物流再循环到反应器中。

    Membrane-augmented polypropylene manufacturing
    10.
    发明授权
    Membrane-augmented polypropylene manufacturing 失效
    膜增强聚丙烯制造

    公开(公告)号:US06271319B1

    公开(公告)日:2001-08-07

    申请号:US09651300

    申请日:2000-08-30

    IPC分类号: C08F204

    摘要: A process for polypropylene manufacturing, including treating a vent stream from the polymerization reactor, to recover propylene for return to the reactor. The process involves using a gas separation membrane to separate propylene from propane in the reactor vent stream. The membrane separation step results in a residue stream typically containing as much as 30% propane or more, which is vented from the polymerization process, and a permeate stream containing 95% or less propylene, which is recirculated to the polymerization reactor.

    摘要翻译: 一种用于聚丙烯制造的方法,包括处理来自聚合反应器的排气流,以回收丙烯以返回反应器。 该方法包括使用气体分离膜在反应器排气流中从丙烷分离丙烯。 膜分离步骤导致通常含有多于30%的丙烷或更多的残余物流,其从聚合过程中排出,以及含有95%或更少丙烯的渗透物流,其被再循环到聚合反应器中。