228.    ---------------. [ BERTHELOT, C.] [Sources of Hydrogen for Production of Liquid Fuels.]  Cong. Chim. Ind., 15^th Cong., Brussels, 1936, pp. 833-846; Brennstoff-Chem., vol. 16, 1935, p. 430; Chem. Abs., vol. 30, 1936, p. 5756.

                 Assuming 2,000 and 4,000 m.³ of H₂ is required, respectively, for the Bergius and Fischer processes and that H₂ from water-gas costs 30 centimes/m.³, it is estimated that the cost of H₂ required for 1 metric ton of gasoline would be 600 francs for the Bergius process and 1,200 francs for the Fischer process.  Much cheaper H₂ could be obtained from the carbonization of 900°-920° of anthracite agglomerates, which can give 300 m.³/ton of gas containing 72-74% of H₂.