Isoparaffin alkylation comprises the reaction of isobutane with C3-C5 olefins in the presence of an acid catalyst to produce a high-quality gasoline blendstock product. The product is known as alkylate made up of a mixture of iso-heptanes and iso-octanes with high-octane, low-sulfur, and low-vapor pressure. In the US, alkylate is responsible for about 11-13 of the total gasoline pool, depending on regional demand and seasonal factors.
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