1467a. HOLLINGS, H., HOPTON, G. U., AND SPIVEY, E. Lurgi High-Pressure Gasification. Gas Jour., vol. 248, 1946, pp. 889-890, 895-897, 899; BIOS Final Rept. 521, 1945, 56 pp.; TOM Reel 227; PB 32,578; Chem. Abs., vol. 41, 1947, p. 847.

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Literature Abstracts

Critical examination of the working results of the plants of the Lurgi Co. in Germany. The fuel is dried in the top of the generator by the hot gases in exit. the latter leave at a temperature 300°-600° and a pressure of about 20 atm. The dried fuel passes down through the generator, and is carbonized by contact with the hot gases. The yield of tar plant and its operation are described at some length. It had a capacity of 150,000,000 m.³ of town gas per yr. and used dried brown-coal lumps and broken briquets as fuel. A diagram is attached. The O₂ consumption is 0.145 m.³ per m.³ of purified gas; steam consumption, 1.47 kg.; over-all power consumption for production of O₂, 1.1-1.2 kw.-hr. per N m.³; and the cost, 2.2 pf. per m.³, including capital charges. The total power consumption for gas manufacture including O₂ production is 0.22 kw.-hr. per N m.³ of purified gas. Based on costs of fuel at 6.50 RM per ton, H₂O at 6 pf. per m.³, power at 1.1 pf. per kw.-hr., labor at 0.4 pf. per m.³, maintenance cost at 0.4 pf. per m.³, and O₂ at 2.2 pf. per m.³, the total cost of gas is 3.8 pf. per m.³ After deducting a byproduct credit of 1.4 pf. per m.³, the net cost is 2.4 pf. per m.³ The Fischer-Tropsch pilot-plant unit was originally installed by Lurgi Gesellschaft Wärmetechnik m.b.H. to study detoxification of town gas but was later turned over to the production of hydrocarbons at 18 atm. pressure, 250° and with a precipitated Fe catalyst. The unit never operated satisfactorily and made only a few short runs. The yield of liquid and solid product was only 40 gm. per m.³