812. ------. [GILLER, F., AND WINKLER, F.] (Standard Oil Development Co.). Method for Forming Synthesis Gas. United States Patent 2,496,342, Feb. 7, 1950; appl. filed Sept. 7, 1945, Serial No. 615,083; 2 claims (Cl. 252-373). Chem. Abs., vol. 44, 195

Patent Abstracts

812. ------. [GILLER, F., AND WINKLER, F.] (Standard Oil Development Co.). Method for Forming Synthesis Gas. United States Patent 2,496,342, Feb. 7, 1950; appl. filed Sept. 7, 1945, Serial No. 615,083; 2 claims (Cl. 252-373). Chem. Abs., vol. 44, 1950, p. 3702.

Cu on activated C is used as catalyst in reacting CH₄or gas containing it with CO₂. The catalyst is prepared by placing activated C (4-mesh) in a vessel fitted with means for introducing liquid and a connection with a vacuum pump. The C is heated to 300º-600º F. for several hr. under vacuum. The C is cooled to 200º F., or lower still, under vacuum. Enough hot, saturated Cu nitrate solution is added to immerse the C. Air is admitted, and the C is kept immersed for 1 hr. It is then removed, drained, and heated slowly to 400º C. to drive off nitrous fumes. When the last of the nitrate has been decomposed, the residual nitrous fumes are displaced by air or N₂ to avoid formation of explosive mixtures of H₂ and N oxides. H₂ is passed in to reduce the Cu oxide at 400º C. The catalyst has a bulk density about 0.52 gm. per ml. and contains 10-15 wt. % of Cu. The Cu is in finely divided state. 1 foreign and 5 United States patents cited.