2500.     OFFENBERG, W.  [Gasification of Solid Fuels With Oxygen Under Pressure.]  Stahl u. Eisen, vol. 63, 1943, pp. 936-939; British Abs., 1946, B, I, p. 123.

        Solid, noncaking fuel (brown coal, lean bituminous coal, gas coke) in a 2-25 mm. size is gasified in a refractory-lined, water-jacketed reaction vessel by a mixture of superheated steam and O₂ at 20-30 atm.  The gas after cooling is washed with oil and then with H₂O, which removes most of the CO₂ and H₂S.  Residual H₂S is removed by Fe₂O₃, and the purified gas is delivered at 20-25 atm. to high-pressure mains.  The gas has a gross calorific value of 4,000-4,500 kcal. per m.³, depending on the reactivityof the solid fuel.  That from a brown coal contained CO₂, 3.0; C_nH_m, 0.5; O₂, 0.1; CO, 22.8; H₂, 48.7; CH₄, 22.6; N₂, etc., 2.3%; the total S was 0.1 gm. per 100 m.³, and NO was 0.052 cc. per m.³  The consumption of O₂ is approximately 0.18 m.³ and that of steam 1.25 kg. per m.³ of purified gas.  Production cost is competitive with that of other gasification processes.

        OGARKOV, N. P.  See abs. 2754.