Alkylation-transalkylation process using stripping to produce a

Details Alkylation-transalkylation process using stripping to produce a Alkylation-transalkylation process using stripping to produce a

1997-03-18

1998-12-08

Caldarola, Glenn

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By condensation of entire molecules or entire hydrocarbyl...

585312, 585314, 585316, 585323, 585467, 585475, C07C 266

Patent

active

058472533

ABSTRACT:
A process for the production of alkylaromatic hydrocarbons that operates with a high water content in an alkylation zone and a low water content in a transalkylation zone is disclosed. An aromatic feed and an acyclic feed are first passed through the alkylation reaction zone that operates at a high water content. A stripping column receives the effluent of the alkylation reaction zone, removes water and unreacted aromatic feed and produces a bottom stream containing unreacted aromatic feed and alkylated aromatics. A recycle column receives the bottom stream and produces an overhead stream of unreacted aromatic feed having a low water content. The overhead stream and a stream of polyalkylated aromatics are contacted in the transalkylation zone.

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