731. ------. [FRANKENBERG, W. G.] (Hydrocarbon Research, Inc.). Catalytic Reduction of Carbon Oide by Hydrogen. United States Patent 2,531,420, Nov. 28, 1950; appl. filed Apr. 30, 1947, Serial No. 745,117; 4 claims (Cl. 260-449). Chem. Abs., vol. 45,

Patent Abstracts

731. ------. [FRANKENBERG, W. G.] (Hydrocarbon Research, Inc.). Catalytic Reduction of Carbon Oide by Hydrogen. United States Patent 2,531,420, Nov. 28, 1950; appl. filed Apr. 30, 1947, Serial No. 745,117; 4 claims (Cl. 260-449). Chem. Abs., vol. 45, 1951, p. 1326.

Nitrides of elements from Groups IV-A, V-A, VI-A, and VII-A, such as Ti, V, Cr, Mn, Zr, Cb, Mo, Ma, Hf, Ta, W, Re, Th, Pa, and U, are active as Fischer-Tropsch catalysts. Formation of normally liquid hydrocarbons is favored over formation of gaseous hydrocarbons, CO₂ production is usually moderate. The catalysts may be used individually or in combination with each other or with known catalysts and activators. Optimum temperature and pressure conditions are specific for each catalyst but lie in the ranges 400º-70º F. and atmospheric –500 p. s. i. Apparatus design may follow typical known processing equipment. 1 literature ref., 2 foreign patents, and 3 United States patents cited.