65. BEDFORD, F., AND WILLIAMS, C. E. (Cedford Gas Process Co.). Catalytic Synthesis of Methane. United States Patent 983,199. Jan. 31, 1911: appl. filed Feb. 25, 1910. Serial No. 546,016. Chem. Abs., vol. 5, 1911. p. 1184.

PATENTS

165. BEDFORD, F., AND WILLIAMS, C. E. (Cedford Gas Process Co.). Catalytic Synthesis of Methane. United States Patent 983,199. Jan. 31, 1911: appl. filed Feb. 25, 1910. Serial No. 546,016. Chem. Abs., vol. 5, 1911. p. 1184.

Catalytic synthesis of CH₄ form a commercial gas containing H₂ and CO, comprising cooling the gas to about-190° to -180° to separate out in the solid form impurities having little or no vapor tension in such manner that the H₂ retains the requisite amount of CO, passing the mixture into contact with a heated catalytic excess of N₂, and separating the CH₄. The gas used id subjected to a preliminary treatment, as with Na₂CO₃ solution, to remove the CO₂. The cooling may be sufficient to condense substantially all the CO, which is then distilled and if desired may be further purified and separated from N₂ by absorption in Cu₂Cl₂ solution and distillation.