Patent ID: 8884091
Filing Date: 2014-11-11
Classification: C07C,C10G

Abstract:
1. An integrated process to produce an alkylate gasoline, comprising: a. alkylating a mixture of hydrocarbons including isoparaffin and olefin using a chloride-containing ionic liquid catalyst in an alkylation reactor to produce the alkylate gasoline comprising a chloride contaminant; b. hydro-regenerating the chloride-containing ionic liquid catalyst in a hydrogenation reactor; c. hydro-dechlorinating the alkylate gasoline comprising the chloride contaminant in a dechlorination reactor at a dechlorination pressure that is 138 to 1207 kPa (20 to 175 psig) higher than a hydrogenation pressure used in the hydrogenation reactor, to produce a dechlorinated alkylate gasoline; and d. feeding an off-gas, comprising 70 to 99.9 vol.% hydrogen, from the dechlorination reactor to the hydrogenation reactor; wherein a hydrogenation catalyst used in the hydrogenation reactor and a dechlorination catalyst used in the dechlorination reactor both comprise Pt, Pd, or mixture thereof on an alumina support; wherein the off-gas requires no pre-treatment before feeding to the hydrogenation reactor; and wherein the off-gas additionally comprises from 100 to 50,000 wppm of a HCl produced during the hydro-dechlorinating.