Patent ID: 8431759
Filing Date: 2013-04-30
Classification: C07C

Abstract:
1. A continuous process for the production of linear alkylbenzenes, comprising continuously supplying benzene and a mixture of linear olefin to an alkylation zone at alkylation conditions in the presence of a catalyst, wherein the linear olefins have between 8 and 16 carbon atoms, thereby generating an alkylation effluent stream comprising benzene, linear monoalkylbenzenes and heavy alkylbenzenes; separating the effluent stream in to a first stream comprising benzene, a second stream comprising linear monoalkylbenzenes and a third stream comprising heavy alkylbenzenes; continuously supplying benzene and the third stream to a transalkylation zone at transalkylation conditions in the presence of a catalyst, thereby creating a transalkylation effluent stream comprising benzene, heavy alkylbenzenes and monoalkylbenzenes; and passing a portion of the transalkylation effluent stream as a recycle stream back to the transalkylation zone, without separation of the components in the effluent stream; wherein the portion of the effluent stream passed back to the transalkylation reactor is more than 50% of the effluent stream and the conversion of heavy alkylbenzene is more than 50%.