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    • 10. 发明申请
    • PROCESS FOR MAKING CYCLOHEXYLBENZENE
    • 制备环己基苯的方法
    • WO2010042142A1
    • 2010-04-15
    • PCT/US2009/004536
    • 2009-08-07
    • EXXONMOBIL RESEARCH AND ENGINEERING COMPANYDAAKA, Jihad, M.DECAUL, Lorenzo, C.XU, Teng
    • DAAKA, Jihad, M.DECAUL, Lorenzo, C.XU, Teng
    • C07C2/64C07C2/66
    • C07C2/74C07C2601/14C07C13/28
    • A process for making cyclohexylbenzene includes (a) contacting benzene and hydrogen in the presence of a first catalyst under hydroalkylation conditions sufficient to form a first effluent stream having cyclohexylbenzene, cyclohexane, methyl cyclopentane, and unreacted benzene, (b) supplying a portion of the first effluent stream to a first separation system to divide the first effluent stream part into (i) a C6-nch stream compπsing benzene, cyclohexane, and methylcyclopentane and (ιι) a cyclohexylbenzene-πch stream, (c) contacting a portion of the C6-πch stream with a second catalyst that catalyzes dehydrogenation and exhibits low acidity under conditions sufficient to convert a portion of the cyclohexane to benzene and a portion of the methylcyclopentane to linear and/or branched paraffins to form a second effluent stream, and (d) recycling a portion of the second effluent stream to the contacting step (a).
    • 制备环己基苯的方法包括(a)在第一催化剂存在下,在足以形成具有环己基苯,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,使苯和氢接触,(b) 将第一流出物流输送到第一分离系统以将第一流出物流部分分成(i)压缩苯,环己烷和甲基环戊烷的C6-nch流和(ω)环己基苯-Pch流,(c)将一部分 C6-pch流,其具有催化脱氢的第二催化剂,并且在足以将环己烷的一部分转化为苯和一部分甲基环戊烷的条件下呈现低酸度至线性和/或支化链烷烃形成第二流出物流,和(d )将第二流出物流的一部分再循环到接触步骤(a)。