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20 条记录 (耗时 0.022 秒)

    Membrane-augmented manufacture of cumene
    3.
    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

    申请人： Richard W. Baker ,  Andre R. Da Costa ,  Ramin Daniels

    发明人： Richard W. Baker ,  Andre R. Da Costa ,  Ramin Daniels

    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
    4.
    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

    申请人： Richard W. Baker ,  Andre R. Da Costa ,  Ramin Daniels

    发明人： Richard W. Baker ,  Andre R. Da Costa ,  Ramin Daniels

    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。

    Efficient gas-separation process to upgrade dilute methane stream for use as fuel
    6.
    发明授权
    Efficient gas-separation process to upgrade dilute methane stream for use as fuel 有权
    有效的气体分离过程，以提升稀释甲烷流用作燃料

    公开(公告)号：US08128733B2

    公开(公告)日：2012-03-06

    申请号：US12454084

    申请日：2009-05-11

    申请人： Johannes G. Wijmans ,  Timothy C. Merkel ,  Haiqing Lin ,  Scott Thompson ,  Ramin Daniels

    发明人： Johannes G. Wijmans ,  Timothy C. Merkel ,  Haiqing Lin ,  Scott Thompson ,  Ramin Daniels

    IPC分类号： B01D53/22

    CPC分类号： B01D53/22 ,  B01D2256/22 ,  B01D2257/504 ,  Y02C10/04 ,  Y02C10/10 ,  Y02E50/346 ,  Y10S585/903

    摘要： A membrane-based gas separation process for treating gas streams that contain methane in low concentrations. The invention involves flowing the stream to be treated across the feed side of a membrane and flowing a sweep gas stream, usually air, across the permeate side. Carbon dioxide permeates the membrane preferentially and is picked up in the sweep air stream on the permeate side; oxygen permeates in the other direction and is picked up in the methane-containing stream. The resulting residue stream is enriched in methane as well as oxygen and has an EMC value enabling it to be either flared or combusted by mixing with ordinary air.

    摘要翻译： 用于处理含有低浓度甲烷的气流的膜基气体分离方法。 本发明涉及使待处理的物流在膜的进料侧流动并使吹扫气流（通常为空气）流过渗透侧。 二氧化碳优先渗透膜，并在渗透侧的吹扫空气流中被吸收; 氧在另一个方向渗透，并被吸收在含甲烷的物流中。 所得的残留物流富含甲烷和氧气，并具有使其能够通过与普通空气混合而扩口或燃烧的EMC值。