3765.     ZHEMOCHKIN, M. N.  [Utilization of the Permanent Gases From the Dry Distillation of Wood for Organic Synthesis.  III.]  Lesokhim. Prom., vol. 2, No. 9, 1939, pp. 12-14; Chem. Zentralb., 1940, I, p. 1106; Chem. Abs., vol. 35, 1941, p. 7152.

        Permanent gases are now used for heating.  This is uneconomical owing to the low heating value, 2,000-3,000 cal. per m.³, and high CO₂ content, 50%.  By passing the gases and steam over Ni catalysts at 800°, CH₄+CO₂ or H₂O giving CO and H₂, and 500°, CO+H₂O=CO₂+H₂, a gas is obtained, which, after cooling and removal of CO₂, can be used directly for MeOH synthesis.