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    • 6. 发明申请
    • PROCESS FOR PRODUCING CUMENE
    • 生产过程的方法
    • WO2008147638A1
    • 2008-12-04
    • PCT/US2008/062637
    • 2008-05-05
    • UOP LLCSCHULTZ, Michael A.LANKTON, Steven P.TAGAMOLILA, Constante P.
    • SCHULTZ, Michael A.LANKTON, Steven P.TAGAMOLILA, Constante P.
    • C07C15/085C07C1/20C07D301/19
    • C07C15/085C07C2/66C07C6/126C07C37/08C07C45/53C07C49/08C07C39/04
    • A process involves contacting, in an alkylation zone (2), a first benzene recycle stream (8) and a propylene feed stream (6) with an alkylation catalyst to form cumene (10). In a transalkylation zone (4), a polyisopropyl benzene recycle stream (42) and a second benzene recycle stream (20) are contacted with a transalkylation catalyst to form additional cumene (12). The effluents are passed into a dividing wall distillation column (14). A cumene stream (32) is removed from an intermediate point of the dividing wall fractionation column; a first benzene recycle stream (18) is removed from a first end and a heavy aromatics stream (34) is removed from a second end. A second benzene recycle stream (20) is removed from an intermediate point located between the first end and the cumene stream. A polyisopropyl benzene stream (42) is removed from an intermediate point of located between the second end and the cumene stream.
    • 一种方法包括在烷基化区(2)中与烷基化催化剂接触第一苯循环物流(8)和丙烯进料流(6)以形成枯烯(10)。 在烷基转移区(4)中,将聚异丙基苯循环物流(42)和第二苯再循环物流(20)与烷基转移催化剂接触以形成额外的枯烯(12)。 流出物流入分隔壁蒸馏塔(14)。 从分隔壁分馏塔的中间点除去枯烯物流(32) 从第一端除去第一苯回收物流(18),并从第二端除去重质芳烃物流(34)。 从位于第一端和异丙基苯流之间的中间点除去第二苯回收物流(20)。 从位于第二端和异丙苯流之间的中间点除去聚异丙基苯物流(42)。
    • 7. 发明申请
    • PROCESS FOR PRODUCING CUMENE
    • 生产过程的方法
    • WO2008147634A1
    • 2008-12-04
    • PCT/US2008/062598
    • 2008-05-05
    • UOP LLCSCHULTZ, Michael A.LANKTON, Steven P.TAGAMOLILA, Constante P.
    • SCHULTZ, Michael A.LANKTON, Steven P.TAGAMOLILA, Constante P.
    • C07C15/085C07C1/20
    • C07C15/085C07C2/66C07C6/126
    • In an alkylation zone (2), a benzene recycle stream (8) and a propylene feed stream (6) are reacted to convert the propylene and benzene into cumene (10). In a transalkylation zone (4), a polyisopropylbenzene stream (43) and a benzene recycle stream (20) are reacted to convert the polyisopropylbenzene and benzene into cumene (12). The effluents are passed into a dividing wall fractionation column (14). A cumene product stream (32) is removed from an intermediate point of the dividing wall fractionation column. A benzene recycle stream (18) is removed from a first end, and another benzene recycle stream (20) is removed from an intermediate point of the dividing wall fractionation column. A polyisopropylbenzene stream (34) is removed from a second end of the dividing wall fractionation column. The polyisopropylbenzene stream is passed to a polyisopropylbenzene fractionation column (40) to separate the polyisopropylbenzene (42, 43) from a heavy ends stream (44).
    • 在烷基化区(2)中,使苯再循环流(8)和丙烯进料流(6)反应,将丙烯和苯转化为异丙苯(10)。 在烷基转移区(4)中,使聚异丙基苯料流(43)和苯再循环料流(20)反应,将聚异丙基苯和苯转化成异丙苯(12)。 流出物流入分隔壁分馏塔(14)。 从分隔壁分馏塔的中间点除去枯烯产物流(32)。 从第一端除去苯循环物流(18),从分隔壁分馏塔的中间点除去另一苯回收物流(20)。 从分隔壁分馏塔的第二端除去聚异丙基苯料流(34)。 将聚异丙基苯流输送到聚异丙基苯分馏塔(40)以将聚异丙基苯(42,43)与重馏分物流(44)分离。