Hydrocarbon dehydrogenation method using a nonacidic multimetallic catalytic composite
AssigneeUop LLC
InventorGeorge J. Antos
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Abstract
Dehydrogenatable hydrocarbons are dehydrogenated by contacting them, at dehydrogenation conditions, with a nonacidic catalytic composite comprising a combination of catalytically effective amounts of a platinum group component, a cobalt component, a tantalum component, and an alkali or alkaline earth component with a porous carrier material in amounts sufficient to result in a composite containing, on an elemental basis, about 0.01 to about 2 wt. % platinum group metal, about 0.05 to about 5 wt. % cobalt, about 0.01 to about 5 wt. % tantalum, and about 0.1 to about 5 wt. % alkali metal or alkaline earth metal.
Claims21
A method for dehydrogenating a dehydrogenatable hydrocarbon comprising contacting the hydrocarbon, at hydrocarbon dehydrogenation conditions, with a catalytic composite comprising a porous carrier material containing, on an elemental basis, about 0.01 to about 2 wt. % platinum group metal, about 0.05 to about 5 wt. % cobalt, about 0.01 to about 5 wt. % tantalum, and about 0.1 to about 5 wt. % alkali or alkaline earth metal;
- wherein the platinum group, catalytically available cobalt, tantalum and alkali or alkaline earth components are uniformly dispersed throughout the porous carrier material;
- wherein substantially all of the platinum group component is present in the elemental metallic state;
- wherein substantially all of the tantalum component is present in a positive oxidation state;
- wherein substantially all of the catalytically available cobalt component is present in the elemental metallic state or in a state which is reducible to the elemental metallic state under hydrocarbon dehydrogenation conditions or in a mixture of these states;
- and wherein substantially all of the alkali or alkaline earth component is present in a positive oxidation state.
Dependencies are inferred from the claim text.