Dehydrogenation of n-butane to butenes
AssigneePhillips Petroleum Company
InventorsAn-hsiang Wu, Charles A. Drake
Life of this patent
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Abstract
A catalyst composition suitable for the conversion of n-butane to butenes. The same catalyst composition that with chlorination is further suitable, when used in the conversion of n-butane, for the production of an increased amount of BTX (benzene-toluene-xylene) and greater selectivity to the production of isobutylenes than attained with the unchlorinated catalyst. A process for the preparation of catalyst compositions suitable for the conversion of n-butane. Use of the catalyst compositions in processes for the conversion of n-butane.
Claims10
A method for the dehydrogenation of n-butane to butenes comprising contacting a feedstock containing n-butane under reaction conditions suitable for the conversion of n-butane to butenes in the presence of a catalyst composition prepared according to the method comprising:
- (A) impregnating alumina with a tin compound to provide alumina impregnated with tin;
- (B) subsequently steam treating the alumina impregnated with tin at an elevated temperature to provide a steam treated tin-aluminate;
- (C) impregnating the steam treated tin-aluminate with a platinum compound to provide a platinum containing tin-aluminate and
- (D) treating the platinum impregnated tin-aluminate in air at a calcining temperature to provide a calcined platinum containing tin-aluminate.
Dependencies are inferred from the claim text.