Removal of acetylenic contaminants by copper-tin and/or lead zinc aluminate
AssigneePhillips Petroleum Company
InventorsAlan D. Eastman, Floyd Farha, Jr.
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Abstract
Acetylenic compounds are selectively removed by conversion to innocuous materials by contacting hydrocarbon mixtures containing same with a copper-tin and/or lead-zinc aluminate catalyst. In one embodiment, acetylenic compounds are selectively removed from unsaturated hydrocarbon-containing mixtures in a cyclic process comprising alternate contact of the catalyst with a gaseous hydrocarbon phase containing acetylenic contaminants and thereafter of the catalyst with an oxygen-containing gas to regenerate the catalyst.
Claims10
A process for the selective removal of acetylenic contaminants or impurities present in hydrocarbon streams which comprises contacting a hydrocarbon-containing mixture contaminated with acetylenic compounds with a catalyst consisting essentially of zinc aluminate promoted with copper and at least one of tin and lead in which the total concentration of promoter metals present, calculated as the metals, ranges from about 0.1 to about 20 weight percent based on the weight of zinc aluminate plus metal promoters under reaction conditions including an elevated temperature sufficient to selectively remove a substantial portion of said acetylenic compounds present in said mixture.
Dependencies are inferred from the claim text.