Process for producing sec-butylbenzene
    9.
    发明授权
    Process for producing sec-butylbenzene 失效
    仲丁基苯的制备方法

    公开(公告)号:US07939693B2

    公开(公告)日:2011-05-10

    申请号:US12666333

    申请日:2008-07-11

    摘要: A process for producing sec-butylbenzene comprises feeding reactants comprising benzene and a C4 olefin to a distillation column reactor having a first reaction zone containing an alkylation catalyst and a second distillation zone, which is located below said first reaction zone and which is substantially free of alkylation catalyst, wherein the ratio of the number of distillation stages in said first reaction zone to the number of distillation stages in said second distillation zone is less than 1:1. Concurrently in the distillation reactor, the reactants are contacted with the alkylation catalyst in the first reaction zone under conditions such that the C4 olefin reacts with the benzene to produce sec-butylbenzene and the sec-butylbenzene is fractioned from the unreacted C4 olefin. The sec-butylbenzene thereby passes as a liquid phase stream from the first reaction zone to the second distillation zone and the liquid phase steam is withdrawn from the distillation column reactor as bottoms.

    摘要翻译: 一种生产仲丁基苯的方法包括将含有苯和C 4烯烃的反应物进料到具有含有烷基化催化剂和第二蒸馏区的第一反应区的蒸馏塔反应器中,所述第一反应区位于所述第一反应区之下且基本上不含 烷基化催化剂,其中所述第一反应区中的蒸馏级数与所述第二蒸馏区中的蒸馏级数之比小于1:1。 同时在蒸馏反应器中,使反应物与第一反应区中的烷基化催化剂接触,使得C 4烯烃与苯反应产生仲丁基苯,仲丁基苯从未反应的C 4烯烃中分馏。 因此,仲丁基苯作为液相物流从第一反应区流向第二蒸馏区,液相蒸汽作为底部从蒸馏塔反应器中排出。