Patent ID: 7524467
Filing Date: 2009-04-28
Classification: C07C,Y02P

Abstract:
1. A system for the production of alkylbenzene comprising: a) first alkylator means for alkylating benzene with an olefin, wherein the first alkylator means produces an effluent containing alkylbenzene and benzene, and an overhead stream; b) condensing means for separating the overhead stream from the first alkylator means into a vapor stream and a liquid stream; c) transalkylator means for contacting the liquid stream from the first alkylator means overhead with a stream containing polyalkylbenzene to produce a transalkylator effluent containing alkylbenzene and benzene; d) absorber means for contacting the vapor stream from the first alkylator means overhead with a lean oil stream containing benzene and alkylbenzene to produce a rich oil stream containing benzene, alkylbenzene and unconverted olefin; and e) second alkylator means for converting the unconverted olefin and at least some of the benzene in the rich oil stream to produce the lean oil stream.