1467. ---------------. [HOLLINGS, H., AND KING, J. G.] Lurgi Gesellschaft für Wärmetechnik, Lurgi Haus, Frankfurt-am-Main. 6. Lurgi and Fischer-Tropsch. CIOS Rept. XXXII-91, 1945, p. 8-11, PB 1,722 and PB 4,328; TOM Reel 197.

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Literature Abstracts

1467. ---------------. [HOLLINGS, H., AND KING, J. G.] Lurgi Gesellschaft für Wärmetechnik, Lurgi Haus, Frankfurt-am-Main. 6. Lurgi and Fischer-Tropsch. CIOS Rept. XXXII-91, 1945, p. 8-11, PB 1,722 and PB 4,328; TOM Reel 197.

Because of outstanding developments in the Fischer process, Lurgi has been granted full rights by Ruhrchemie-A.-G. for constructing Fischer-Tropsch plants, with interchange of technical information. Although it is conceded the hydrogenation is more suitable for the production of high-octane fuel, nevertheless, because of its better applicability to the treatment of high-ash coals and the production of wax and other products, the Fischer-Tropsch process is of considerable potential importance from the chemical point of view. Operation under medium pressure enables the quality of the product to be rather closely controlled. Some tabulated data are given on the yields of products obtained at 7-10 atm., 190°-225° with a Co catalyst and at 20 atm., 230° and 275° with two Fe catalysts in 3, 2, and 1 stages, respectively. Yields per m.³ of high-CO:H₂ ratio water gas were 160, 170, and 135 gm., respectively. The Fe catalyst developed by Lurgi is stated to work at 218°-230°, 10 atm., and H₂:CO ratio =2, a 2d stage of conversion being necessary. It has the composition Fe, 100; Cu, 25; Al₂O₃, 9; K₂O, 2; SiO₂, 30. It is insinuated that the double-tube, medium-pressure oven is not very satisfactory, with operation at 20 atm. pressure. Its temperature limit is 230°. The average cost per kg. of product is given as 24 pf. The average price of all products is 45 pf. Capital cost is set at 800-900 RM per yr. per ton of liquid products. A recent plant was quoted at 600 RM.