2703.     PIGNOT, A.  [Catalytic Process for Preparation of a Methane-Rich Fuel Gas from Manufactured Gas.]  Ind. Petrol., vol. 9, No. 36, 1941, pp. 29-35; Chem. Zentralb., 1943, I, pp. 471-472; Chem. Abs., vol. 38, 1944, p. 3111.

        This process is based on the transformation of CO according to the equation CO+3H₂=CH₄+H₂O.  In this way a fuel gas having a heating value of 6,000-7,000 kcal. per m.³ can be prepared from manufactured gas, which is a mixture of coal gas and blue gas from coke.  Calculations are presented for a plant capable of handling 200 m.³ of manufactured gas per hr.