Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Michael A. Schultz0
Steven P. Lankton0
Constante P. Tagamolila0
Date of Patent
March 3, 2009
0Patent Application Number
117525140
Date Filed
May 23, 2007
0Patent Primary Examiner
Patent abstract
In an alkylation zone, a benzene recycle stream and a propylene feed stream are contacted with an alkylation catalyst to convert the propylene and benzene into cumene. In a transalkylation zone, a polyisopropylbenzene stream and a benzene recycle stream are contacted with a transalkylation catalyst to convert the polyisopropylbenzene and benzene into cumene. The alkylation and transalkylation zone effluents are passed into a dividing wall fractionation column.
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