Catalysts for the oxidative conversion of methane to higher hydrocarbons
AssigneeAmoco Corporation
InventorsDon M. Washecheck, Aileen E. Alvarado-Swaisgood, Mark P. Kaminsky, Mark S. Kleefisch, George A. Huff, Jr.
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Abstract
An oxidative coupling catalyst composition for converting methane to a higher hydrocarbon comprising a mixed oxide of: (a) a Group IIIB metal selected from the grouup consisting of yttrium, scandium and lanthanum; (b) a Group IIA metal selected from the group consisting of barium, calcium and strontium; and (c) a Group IVA metal selected from the group consisting of tin, lead and germanium and approximate ratio of 1:0.5-3:2-4, and an improved process employing same.
Claims10
An improved method for converting methane to a higher hydrocarbon comprising the steps of:
- contacting a gas comprising methane with an oxidative coupling catalyst comprising a mixed oxide of:
- (a) a Group IIIB metal cationic species selected from the group consisting of yttrium, lanthanum, and scandium;
- (b) a Group IIA metal cationic species selected from the group consisting of barium, calcium and strontium;
- and (c) a Group IVA metal cationic species selected from the group consisting of tin, lead and germanium and wherein the Group IIIB metal, Group IIA metal and Group IVA metal are present in the approximate atomic ratio of 1:0.5-3:2-4-1 , respectively, in the presence of oxygen.
Dependencies are inferred from the claim text.