Ionic liquid catalyzed alkylation with ethylene in ethylene containing gas streams

摘要

An alkylation process comprising contacting in an alkylation zone under alkylation conditions an olefin containing gas stream with an isoparaffin in the presence of an ionic liquid catalyst composition to provide an alkylate product. In an embodiment the olefin stream may comprise offgas containing ethylene together with one or more non condensable and/or inert gases and the offgas may be fed in its native state to an alkylation reactor containing the ionic liquid catalyst for the alkylation of isoparaffins to provide low volatility high octane gasoline blending components.