897a.    ---------------.  [FERRERO, P.]  [Chemical Utilization of Gas Collected in Coal Mines.]  Pubs. Assoc. Ing. Faculté Polytech.  Mons, 1952, No. 1, pp. 74-78.  Chem. Abs., vol. 46, 1952, p. 7736.

       Many ways might be found to chemically utilize the gas (grisou) emanating in coal mines.  Grisou contains 90% CH₄, 8% air, and small amounts of C₂H₄, H₂ and CO₂.  Processes are reviewed for converting grisou to town gas and to synthesis gas for manufacture of NH₃ or MeOH by steam reaction in the presence of catalysts or by partial oxidation.  Also mentioned are the manufacture of C₂H₂, HCN by various methods, chlorination, nitration, Oxo reaction, Fischer-Tropsch process.