663.    DANULAT, F.  [Gasification of Solid Fuels by Oxygen Under Pressure.]  Mitt. Metallges., No. 13, 1938, pp. 14-22; Ind. Eng. Chem., news ed., vol. 16, 1938, p. 535; Braunkohle, vol. 37, 1937, pp. 200-202; Chem. Abs., vol. 33, 1939, p. 1471.

     Description of commercial manufacture of city gas in Germany by the gasification of brown coal in a plant having two generators of 3.9 ft. diameter, 47,300 lb. of coal is gasified per 24 hr., yielding 563,000 cu. ft. of gas (at 0° and 760 mm.).  It is claimed that any non-coking solid fuel can be used for gasification.  O₂ is introduced at approximately 300 p.s.i.; this pressure is maintained during gasification of coal.  Before entering the generator, the O₂ is mixed with superheated steam at 500°.  After purification and CO₂ reduction, the gas has the following composition:  CO₂, 3.0; illuminants, 0.5; O₂, 0.1; CO, 22.8; H₂, 48.7; CH₄, 22.6; N₂, etc., 2.3%.  For certain synthetic purposes, it is possible to limit the CO production to 15% and increase H₂ to as much as 75% by suitable control of steam input, temperature, and pressure and by use of proper fuels.