PATENTS

      1632.  INSTITUTION OF GAS ENGINEERS.  Combustible Gas.  British Patent 528,338.  Oct. 28. 1940.  Chem. Abs., vol. 35. 1941. p. 7689.

            Carbonaceous fuel is gasified by the action of O₂ and steam under pressure with a high rate of gasification so as to produce a gas consisting mainly of H₂ and CO.  CO and H₂, thus produced, are caused to react to form CH₄ while the gas is still under pressure.  Heat evolved by this reaction is used to preheat steam under pressure to be used for the gasification.