Cumene production

Details Cumene production Cumene production

C - Chemistry, Metallurgy

07

C

260/685, 260/686

C07C 2/00 (2006.01)

Patent

CA 1072988

ABSTRACT OF THE DISCLOSURE A process to reduce utility consumption in the catalytic alkyla- tion of benzene with propylene to form cumene. Propylene and benzene are reacted in an alkylation reaction zone, the effluent of which is divided into two portions, the first being recirculated to the inlet of the re- action zone and the second being passed into a separation zone wherein cumene product, di-and triisopropylbenzene and excess benzene are separated. A portion of the excess benzene is recycled to the inlet of the alkylation reaction zone, and a second portion is admixed with di- and triisopropylbenzene and passed into a transalkylation zone, the effluent of which is introduced into the separation zone. Utility con- sumption is reduced compared to prior art processes, as a result of a reduction of the portion of excess benzene separated and recycled to the alkylation reaction zone.

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