Patent ID: 8183425

Claim:
A downflow process for the production of low volatility, high quality gasoline blending components comprising: (a) providing an isoparaffin feed stream comprising isoparaffins; (b) providing an olefin feed stream comprising olefins; (c) providing a catalyst stream comprising an ionic liquid catalyst; (d) splitting the isoparaffin feed stream, the catalyst stream, and the olefin feed stream into multiple isoparaffin feed streams, catalyst streams, and olefin feed streams; (e) feeding the multiple isoparaffin feed streams, catalyst streams, and olefin feed streams into a reactor at different feed sites along the length of the reactor in a downwardly direction to contact all the feed streams under alkylation conditions to provide a product comprising the low volatility, high quality gasoline blending components wherein the isoparaffin/olefin ratio increases along the length of the reactor; and (f) isolating the low volatility, high quality gasoline blending components from the product.