Patent ID: 7371918
Filing Date: 2008-05-13
Classification: B01J,C07C,C10G

Abstract:
1. A process comprising: a) mixing i) a first isobutane-containing feed stream selected from the group consisting of a portion of a fresh isobutane stream, a portion of a recycle isobutane stream, and combinations thereof; and ii) a first olefin stream with an alkylation catalyst stream in a first reaction zone, to thereby form a first reaction zone effluent; b) passing said first reaction zone effluent to a second reaction zone for mixture with i) a second isobutane-containing feed stream selected from the group consisting of a portion of said fresh isobutane stream, a portion of said recycle isobutane stream, a portion of a settler effluent stream, and combinations of any two or more thereof; and ii) a second olefin stream to thereby form a second reaction zone effluent; c) alternatively: d) removing at least a portion of said hydrocarbon phase to thereby form said settler effluent stream comprising alkylate and isobutane; and e) removing isobutane from the remainder of said hydrocarbon phase to thereby form said recycle isobutane stream; and wherein at least a portion of said settler effluent stream comprising alkylate and isobutane is mixed with at least one of: