2772.     RAPOPORT, I. B., AND BLYUDOV, A. P.  [Methane Synthesis.]  Khim. Tverdogo Topliva, vol. 5, 1934, pp. 625-632; Chem. Abs., vol. 29, 1935, p. 2905.

        CH₄ synthesis is effective, using CO and H₂ over a Ni catalyst at 250° at 270° the conversion of CO is 99%.  A Ni-Mn catalyst permits of carrying out the reaction at 200°-204°.  A considerable amount of CO₂ is formed when the temperature is raised to 250°-280°.  A Ni-Mn-Al catalyst at the above temperature promotes the simultaneous formation of CO₂ and CH₄.  Mo catalyst promotes CH₄ formation at 350°-400°; this reaction slows down and a considerable amount of CO₂ is produced when the above temperature is exceeded.  Addition of Al₂O₃ has almost no effect on the yield of various products.  The operations are described in detail, and analytical data are tabulated.