In a process for producing cyclohexylbenzene, benzene is contacted with hydrogen in the presence of a hydroalkylation catalyst under hydroalkylation conditions effective to form a first effluent stream comprising cyclohexylbenzene, cyclohexane, and benzene. At least a portion of the cyclohexane from the first effluent stream is then contacted with hydrogen in the presence of a dehydrogenation catalyst under dehydrogenation conditions effective to convert at least some of the cyclohexane into benzene contained in a second effluent stream. At least some of the hydrogen is supplied to the process so as to contact the dehydrogenation zone (e.g., the dehydrogenation catalyst) before contacting the hydroalkylation catalyst.
申请公布号
WO2013130153(A1)
申请公布日期
2013.09.06
申请号
WO2012US67974
申请日期
2012.12.05
申请人
EXXONMOBIL CHEMICAL PATENTS INC.
发明人
BECKER, CHRISTOPHER, L.;LATTNER, JAMES, R.;KUECHLER, KEITH, H.;NAIR, HARI