Process for the alkylation of hydrocarbons

Details Process for the alkylation of hydrocarbons Process for the alkylation of hydrocarbons

C - Chemistry, Metallurgy

07

C

260/712.1

C07C 2/62 (2006.01) C07C 9/14 (2006.01)

Patent

CA 1093588

INVENTION: PROCESS FOR THE ALKYLATION OF HYDROCARBONS INVENTORS: R. L. STURTEVANT, A. B. GANCY and B. I. KARSAY Abstract An improved process for the alkylation of isoparaffins with olefins in the presence of a sulfuric acid catalyst is disclosed. Improvement in the octane rating of the product alkylate is achieved by periodic fortification of the sulfuric acid catalyst with sulfur trioxide-bearing fortifying agents under conditions wherein the harmful effects caused by contact of the sulfur trioxide with the hydrocarbons in the alkylation zone are minimized. The acid catalyst is fortified less fre- quently than 15% of the time the catalyst is in contact with the hydrocarbons and the water content of the acid is allowed to vary between fortifications. The process effects not only essentially 100% utilization of the fortifying agent for water removal but also improves the octane rating of the product alkylate while simultaneously extending the service life of the alkylation catalyst by allowing use of the acid to a higher final organic content.

313929

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