Method of extending catalyst life in vinyl aromatic hydrocarbon formation
AssigneeFina Technology, Inc.
InventorJim Butler
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Abstract
Methods of extending the life of dehydrogenation catalyst are described herein. For example, one embodiment includes providing a catalytic dehydrogenation system, wherein the catalytic dehydrogenation system includes at least one reaction vessel, the at least one reaction vessel loaded with a dehydrogenation catalyst including an alkali metal enhanced iron oxide, contacting the dehydrogenation catalyst with a feedstream including an alkyl aromatic hydrocarbon to form a vinyl aromatic hydrocarbon and contacting the feedstream with a catalyst life extender, wherein the catalyst life extender includes cesium.
Claims8
A method of forming a vinyl aromatic hydrocarbon comprising:
- providing a catalytic dehydrogenation system, wherein the catalytic dehydrogenation system comprises at least one reaction vessel, the at least one reaction vessel loaded with a dehydrogenation catalyst comprising an alkali metal enhanced iron oxide;
- contacting the dehydrogenation catalyst with a feedstream comprising an alkyl aromatic hydrocarbon to form a vinyl aromatic hydrocarbon;
- and
- contacting the feedstream with a catalyst life extender, wherein the catalyst life extender comprises cesium.
A catalytic dehydrogenation system comprising:
- at least one reaction vessel, the at least one reaction vessel loaded with a dehydrogenation catalyst comprising an alkali metal enhanced iron oxide and wherein the at least one reaction vessel comprises a vessel inlet adapted to provide a feedstream comprising an alkyl aromatic hydrocarbon to the dehydrogenation catalyst and a vessel outlet adapted to pass a vinyl aromatic hydrocarbon therethrough;
- and
- a supply system adapted to provide a catalyst life extender to the feedstream, wherein the catalyst life extender comprises cesium.
Dependencies are inferred from the claim text.