Catalyst for propane dehydrogenation to propylene
AssigneeUop LLC
InventorsXi Zhao, Avram M. Buchbinder, J. W. Adriaan Sachtler, Wei Pan, John A. Karch
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Abstract
A de-hydrogenation catalyst and its use in dehydrogenation of hydrocarbons. The catalyst has low cracking activity and comprises gallium or gallium and platinum on an essentially non-acidic and amorphous alumina-phosphate or silica-alumina-phosphate support with an empirical chemical composition of [Al2O3][SiO2]Y[P2O5]Z, wherein Y is between 0 and 0.2 and Z is between 0.01 and 1.1, with a BET surface area above 50 m2/g, as measured by N2 adsorption experiment.
Claims16
A de-hydrogenation catalyst comprising gallium on an essentially non-acidic and amorphous alumina-phosphate or silica-alumina-phosphate support with an empirical chemical composition of [Al2O3][SiO2]Y[P2O5]Z, wherein Y is between 0 and 0.2 and Z is between 0.01 and 1.1, with a BET surface area above 50 m2/g, as measured by N2 adsorption experiment.
A process for dehydrogenating a hydrocarbon comprising:
- contacting a gaseous stream consisting of at least one dehydrogenatable hydrocarbon selected from paraffinic hydrocarbons having from 2 to 20 carbons, alkylaromatic hydrocarbons having from 8 to 20 carbons, and mixtures thereof, hydrogen produced in situ by the dehydrogenation and a carrier fluid selected from the group consisting of one of the reactants in gaseous form, nitrogen, hydrocarbons, carbon dioxide, and argon;
- or at least one dehydrogenatable hydrocarbon selected from paraffinic hydrocarbons having from 2 to 20 carbons, alkylaromatic hydrocarbons having from 8 to 20 carbons, and mixtures thereof and hydrogen produced in situ by the dehydrogenation, in a dehydrogenation reactor with a supported dehydrogenation catalyst comprising gallium on an essentially non-acidic and amorphous alumina-phosphate or silica-alumina-phosphate support with the empirical chemical composition of [Al2O3][SiO2]Y[P2O5]Z, in which Y is between 0 and 0.2 and Z is between 0.01 and 1.1, with a BET surface area above 50 m2/g, as measured by N2 adsorption experiment.
Dependencies are inferred from the claim text.