Patent ID: 7678957
Filing Date: 2010-03-16
Classification: B01J,C07C

Abstract:
1. In an alkylation process including: introducing a hydrocarbon mixture comprising at least one olefin and at least one isoparaffin into a riser reactor via a first conduit for contact with an alkylation catalyst within said riser reactor to thereby produce a reactor effluent; passing said reactor effluent from said riser reactor to a settler vessel comprising a settler vessel top, a settler vessel bottom, wherein said settler vessel bottom is positioned at a first elevation, and wherein said reactor effluent is separated into a hydrocarbon phase and a catalyst phase; passing at least a portion of said catalyst phase from said settler vessel via a second conduit to a catalyst cooler comprising a catalyst cooler top and a catalyst cooler bottom, wherein said catalyst cooler top is positioned at a second elevation below said first elevation, for cooling, thereby forming a cooled catalyst; removing at least a portion of said hydrocarbon phase from said settler vessel via a third conduit to thereby form a settler effluent stream; passing said cooled catalyst from said catalyst cooler to said riser reactor for use as at least a portion of said alkylation catalyst, wherein the improvement comprises: