Process of producing cyclohexylbenzene
    4.
    发明授权
    Process of producing cyclohexylbenzene 有权
    生产环己基苯的方法

    公开(公告)号:US09365467B2

    公开(公告)日:2016-06-14

    申请号:US13883742

    申请日:2011-12-02

    摘要: In a process for producing cyclohexylbenzene, benzene is contacted with hydrogen under hydroalkylation conditions effective to form a first effluent stream comprising cyclohexylbenzene, cyclohexane, methylcyclopentane, and unreacted benzene. At least a portion of the first effluent stream is contacted with a dehydrogenation catalyst under dehydrogenation conditions to convert at least a portion of the cyclohexane to benzene thereby forming a second effluent stream. The amount of methylcyclopentane in the second effluent stream is different by no more than 65% of the total amount of the portion of the first effluent stream, said amounts being on a weight basis. A methylcyclopentane-containing stream is removed from either the first or the second effluent stream and at least a portion of the second effluent stream containing benzene is recycled to the hydroalkylation step.

    摘要翻译: 在生产环己基苯的方法中,苯在有效形成包含环己基苯,环己烷,甲基环戊烷和未反应苯的第一流出物流的加氢烷基化条件下与氢气接触。 在脱氢条件下,将至少一部分第一流出物流与脱氢催化剂接触以将至少一部分环己烷转化为苯,从而形成第二流出物流。 第二流出物流中的甲基环戊烷的量不同于第一流出物流的部分总量的不超过65%,所述量基于重量。 从第一或第二流出物流中除去含甲基环戊烷的物流,并将含有苯的第二流出物流的至少一部分再循环至加氢烷基化步骤。

    Process of Producing Cyclohexylbenzene
    5.
    发明申请
    Process of Producing Cyclohexylbenzene 有权
    生产环己基苯的工艺

    公开(公告)号:US20140371498A1

    公开(公告)日:2014-12-18

    申请号:US13883742

    申请日:2011-12-02

    IPC分类号: C07C2/74 C07C6/12 C07C5/367

    摘要: In a process for producing cyclohexylbenzene, benzene is contacted with hydrogen under hydroalkylation conditions effective to form a first effluent stream comprising cyclohexylbenzene, cyclohexane, methylcyclopentane, and unreacted benzene. At least a portion of the first effluent stream is contacted with a dehydrogenation catalyst under dehydrogenation conditions to convert at least a portion of the cyclohexane to benzene thereby forming a second effluent stream. The amount of methylcyclopentane in the second effluent stream is different by no more than 65% of the total amount of the portion of the first effluent stream, said amounts being on a weight basis. A methylcyclopentane-containing stream is removed from either the first or the second effluent stream and at least a portion of the second effluent stream containing benzene is recycled to the hydroalkylation step.

    摘要翻译: 在生产环己基苯的方法中,苯在有效形成包含环己基苯,环己烷,甲基环戊烷和未反应苯的第一流出物流的加氢烷基化条件下与氢气接触。 在脱氢条件下,将至少一部分第一流出物流与脱氢催化剂接触以将至少一部分环己烷转化为苯,从而形成第二流出物流。 第二流出物流中的甲基环戊烷的量不同于第一流出物流的部分总量的不超过65%,所述量基于重量。 从第一或第二流出物流中除去含甲基环戊烷的物流,并将含有苯的第二流出物流的至少一部分再循环至加氢烷基化步骤。