Ionic liquid alkylation process produces high-quality gasoline

A new composite ionic liquid (IL) alkylation process has been proven in a pilot plant and retrofitted into an existing 65,000-tonne/year H2SO4 alkylation unit in China. This article discusses the new process, ionikylation, and presents results from the pilot plant and retrofitted unit.Process reactions take place at ambient temperatures and moderate pressures. Alkylate from the ionikylation process compares favorably to alkylate from HF and H2SO4 units but without the safety and environmental concerns.AlkylationIsobutane alkylation is a common refinery process used to produce high-quality gasoline (OGJ, Nov. 12, 1990, p. 79). The most desirable components in alkylate gasoline are trimethy...

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