Patent ID: 8389786
Filing Date: 2013-03-05
Classification: B01J,C07C,G05D

Abstract:
1. A process for controlling the 2-phenyl content in the benzene alkylation process, comprising: passing a benzene stream to an alkylation reactor; passing a linear olefin to the alkylation reactor, wherein the olefin comprises olefins having from 8 to 16 carbon atoms; reacting the linear olefin with the benzene over a catalyst comprising two catalytic materials to produce an effluent stream comprising benzene and alkylbenzene, wherein the first catalytic material comprises a faujacite having a rare-earth metal deposited thereon, and the second catalytic material is UZM-8; measuring the 2-phenyl content of the alkylbenzene in the effluent stream; controlling the benzene to olefin ratio in the feed through control of the benzene in the feed in response to the 2-phenyl content in the effluent, wherein the desired 2-phenyl content is between preset limits; and passing a portion of the effluent stream to the reactor inlet in response to the 2-phenyl content in the effluent.