Process for the selective production of alkylbenzenes

Details Process for the selective production of alkylbenzenes Process for the selective production of alkylbenzenes

1984-04-04

1985-06-11

Davis, Curtis R.

Chemistry of hydrocarbon compounds

Plural serial diverse syntheses

To produce aromatic

585455, 585456, C07C 100

Patent

active

045230480

ABSTRACT:
An improved process for the production of alkylaromatic hydrocarbons is disclosed. Paraffinic hydrocarbons are dehydrogenated to yield an olefin-containing stream, which is later charged to an alkylation zone for reaction with an aromatic hydrocarbon. The olefin-containing stream is first passed through a selective hydrogenation zone in which diolefins are converted to monoolefins by contact with a selective catalyst. This increases the yield and the quality of the product alkylate by greatly reducing the production of biphenyl compounds and oligomers in the alkylation zone. The selective hydrogenation zone is located between the vapor-liquid separator and stripper column of the dehydrogenation zone.

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