In a process for producing cyclohexylbenzene, hydrogen and benzene are introduced to a first hydroalkylation reaction zone which contains a hydroalkylation catalyst and which is operated under at least partly liquid phase conditions sufficient to effect hydroalkylation of benzene to produce a mixed liquid/vapor phase effluent comprising cyclohexylbenzene and unreacted benzene, wherein at least a portion of the unreacted benzene is in the vapor phase. At least a portion of the effluent is cooled to condense a liquid phase stream containing at least some of the cyclohexylbenzene in the effluent portion and leave a residual stream containing at least some of the unreacted benzene and cyclohexylbenzene. At least a portion of the liquid stream is recycled to the first hydroalkylation reaction zone or to contact the mixed phase effluent exiting the first hydroalkylation reaction zone. Other methods of cooling the reaction effluent are disclosed.
申请公布号
EP2812297(A1)
申请公布日期
2014.12.17
申请号
EP20130703686
申请日期
2013.01.28
申请人
EXXONMOBIL CHEMICAL PATENTS INC.
发明人
BECKER, CHRISTOPHER, L.;NAIR, HARI;LATTNER, JAMES, R.;KUECHLER, KEITH, H.