Integrated process for the production of cumene

Details Integrated process for the production of cumene Integrated process for the production of cumene

C - Chemistry, Metallurgy

07

C

C07C 15/085 (2006.01) C07C 2/66 (2006.01)

Patent

CA 2349900

Integrated process for the preparation of cumene which com- prises dehydrogenating a stream of propane to propylene in a dehydrogenation unit and sending the stream leaving the dehydrogenation unit, containing 25-40% by weight of pro- pylene, to an alkylation unit together with a stream of benzene with a molar ratio benzene/propylene ranging from 8 to l0. The alkylation product is distilled in a first dis- tillation column to recover a light fraction, essentially consisting of propane which is recycled to the dehydrogena- tion, and a heavy fraction which is distilled in a second distillation column to recover non-reacted benzene at the head, recycled to the alkylation unit, and cumene with a purity of over 99%, at the tail.

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