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US 7,692,051 B2Granted
Process for liquid phase hydrogenation
AssigneeSynfuels International, Inc.
InventorsMarvin M. Johnson, Edward R. Peterson, Sean C. Gattis
Life of this patent
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Abstract
A process and catalyst for the liquid phase selective hydrogenation of alkynes to alkenes with high selectivity to alkenes relative to alkanes, high alkyne conversion, and sustained catalytic activity comprising a reactant comprising an alkyne and a non-hydrocarbon solvent/absorbent, contacting the reactant stream with a hydrogen-containing stream in the presence of a supported, promoted, Group VIII catalyst, removing the solvent/absorbent, and recovering the alkene product.
Claims16
A process for selective hydrogenation comprising:
- absorbing one or more acetylenic compounds in a liquid polar non-hydrocarbon absorbent to provide a reactant stream;
- providing a hydrogenation catalyst comprising a first metal selected from the group consisting of Group VIII metals and combinations thereof and a second metal selected from the group consisting of Group IB metals, Group IIB metals, Group IIIA metals, Group VIIB metals, and combinations thereof;
- contacting the reactant stream with the hydrogenation catalyst, in the presence of a gas stream comprising hydrogen and greater than 2000 ppm carbon monoxide, under selective hydrogenation conditions, to provide a product stream;
- wherein the product stream comprises the ethylenic compounds corresponding to the one or more acetylenic compounds in the reactant stream;
- and
- separating the absorbent from the product stream.
3 more elements
Dependencies are inferred from the claim text.