855.    EVANS, R. M., AND NEWTON, W. L.  Hydrogen From Water Gas.  Ind. Eng. Chem., vol. 18, 1926, pp. 513-517; Chem. Abs., vol. 20, 1926, p. 2242.

     Catalysts for the Bosch or “catalytic water gas” process for H₂ production by interacting with CO of the water gas with steam (and later removing the CO₂ thus formed) have been studied in detail.  With an oxide catalyst containing 97% Co, 2% Al, and 1% K and a space velocity per hr. of 1,000 at 450° and at 350°, the % CO in the dry effluent gas was reduced to 1.1 and 0.3, respectively, these corresponding to the equilibrium values.  Substitution of the Co, partly or wholly, by Fe produced only slightly less efficient catalysts.  The Co catalysts are slowly poisoned even by small quantities of H₂S, CS₂, or COS, so that careful purification would be necessary in operation, but the Fe catalysts are less sensitive and probably could function continuously on unpurified water gas from a good grade of coke.

      EVENTOVA, M. S.  See abs. 306.