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 1466.    HOLLINGS, H., AND KING, J. G.  Lurgi Geselschaft für Wärmetechnik, Lurgi Haus, Frankfurt-am-Main. 5 and 7.  High-Pressure Gasification.  CIOS Rept. XXXII-91, 1945, pp. 6-7, 11; PB 1,722 and PB 4,328.

        3 plants are gasifying brown coal under high pressure:  Zittau, Böhlen and Brüx, the last 2 having productive capacities of 150 and 100 million cu. ft. per yr., respectively.  The process had been investigated for production of synthesis gas from bituminous coal, but no plant had been installed.  The process uses 0.5-0.2 m.³ of O₂ per m.³ of gas.  The purity of the O₂ utilized depends upon the reactivity of the fuel, the higher than reactivity, the lower the purity.  Zittau had used O₂ of 72-75% purity.  The maximum size of the generator at present is 2.5 m.  An Fe, 10; Cu, 10; Al₂O₃, 9; kieselguhr 120 catalyst made by Lurgi Gesellschaft is used at a temperature 70° higher than in the Fischer process.  The total cost of producing O₂ in the standard Linde-type plant is estimated at 2.2-2.5 pf. per N m.³ for plants producing 1,000-2,000 N m.³ per hr., of which 40% is for depreciation, 40% for power, and 20% for wages, maintenance, and chemicals.  For large units of 17,000 m.³ per hr., the cost would be 1.5 pf., of which 0.4 pf. would be for depreciation.