Low benzene content gasoline producing process

摘要

A process for the production of a gasoline having a low benzene content. A catalytic reformate and a stripped liquid produced in the gas concentration unit of an FCC unit are fractionated in a dehexanizer to concentrate the benzene and C3-C4 olefins these two streams contain into a single stream. This stream is passed into an alkylation zone wherein at least some of the benzene is alkylated with the olefins. The alkylation zone effluent is stripped and recombined with C7-plus dehexanizer bottoms stream to form a gasoline product stream.