Patent ID: 9108893
Filing Date: 2015-08-18
Classification: C07C,Y02P

Abstract:
1. A process for producing cyclohexylbenzene comprising: (a) contacting hydrogen and benzene in a first reaction zone under conditions effective to produce a product effluent comprising cyclohexylbenzene and residual benzene, wherein at least a portion of the residual benzene is in the vapor phase and at least a portion of the cyclohexylbenzene is in the liquid phase; (b) separating the product effluent into (i) a first stream that is rich in residual benzene in the vapor phase as compared to the product effluent; and (ii) a second stream that is rich in cyclohexylbenzene in the liquid phase as compared to the product effluent; (c) cooling at least a portion of the first stream to condense at least a portion of the residual benzene in the vapor phase to the liquid phase and produce a condensate stream; and (d) recycling at least a portion of the condensate stream to the first reaction zone.