1128.    ---------------.  [FUSSTEIG, R.] Synthesis of Petroleumlike Hydrocarbons From Carbonaceous Material.  Petrol. Eng., vol. 11, No. 8, 1940, pp. 95-96, 98, 100; Chem. Abs., vol. 34, 1940, p. 7086.

       Discusses fundamental principles of the Fischer synthesis and the allied process with emphasis on the production of the starting material, water gas.  The efficiency of the Fischer synthesis centers upon the control of reaction conditions, especially the ratio of CO:H₂, pressure, and temperature.  Mentions effects of changes in reaction conditions, especially on quality of product.  A flowsheet is given of the Fischer process combined with true vapor-phase cracking, and typical yields are tabulated.  The necessity for the desulfurization of the starting gases is stressed, the maximum permissible S content being given as 2 mg. per m.³  Catalytic desulfurization with alkali-activated Fe oxide is briefly outlined.  Paraffin wax can also be synthesized by the Fischer process.  A 2-stage synthesis in which the catalyst temperature is kept 5°-10° higher in the 2d stage than in the 1^st is claimed to increase the yield of hydrocarbons from 110 to 125-130 gm. per m.³ gases.