Patent ID: 7498474

Claim:
A method for producing a gasoline boiling range product from a mixed light olefin feed stream including ethylene and propylene and an aromatic feed stream including single ring aromatic compounds, which process comprises: reacting single ring aromatic compounds including benzene in the aromatic feed stream with propylene in the mixed olefin feed stream in a first step in the vapor phase in the presence of a catalyst system comprising a catalyst component comprising a zeolite of the MWW family in a fixed catalyst bed at a bed temperature in the range of 90° to 250° C. and a pressure not more than 7,000 kPag passing the effluent from the first step to a second step in which single ring aromatic compounds including benzene in the aromatic feed stream are reacted with ethylene in the mixed olefin feed stream in the vapor phase in the presence of a catalyst system comprising a catalyst component comprising a ZSM-5 intermediate pore size zeolite in a fixed catalyst bed at a bed temperature higher than that of the first step and in the range of 200° to 400° C. and a pressure not more than 7,000 kPag, to form a gasoline boiling range product containing akylaromatics.