Patent ID: 7919663

Claim:
A process for producing a gasoline blending component and a middle distillate, comprising: a. reacting an isobutane stream with a process stream containing butene under alkylation conditions wherein the isobutane and butene are alkylated to produce an alkylate product in the presence of a chloroaluminate ionic liquid having the general formula RR′ R″ N H + Al 2 Cl 7 − , wherein RR′ and R″ are alkyl groups containing 1 to 12 carbons; wherein the reacting step additionally includes adjusting over time a level of a halide containing additive provided to an ionic liquid reactor where the reacting occurs, to shift a selectivity of C10+ products in the alkylate product; and b. separating out the middle distillate and the gasoline blending component from the alkylate product; wherein the separated middle distillate fraction is from 20 wt % or higher of the total alkylate product; and wherein the separated gasoline blending component has a RON of 91 or higher.