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 1990.    KROEPELIN, H.  [Heat Transfer in the Fischer-Tropsch Synthesis, Especially in Lamella Furnaces.]  Erdöl u. Kohle, vol. 3, No. 1, 1950, p. 10.

        Paper presented at the 1949 meeting of the Deutsche Gesellschaft Mineralöelwissenschaft u. Kohlechemie.  The transfer of the reaction heat set free in the Fischer-Tropsch synthesis is traced from the middle of the catalyst bed to the H₂O space of the catalyst furnace.  The problem is divided into 4 parts:  (a) From the middle of the catalyst bed to the lamella, (b) from the lamella to the cooling space, (c) from the tube wall to the cooling H₂O, (d) from the path of the steam in the cooling tube to the steam accumulator.  The heat transfer within the catalyst bed as in the lamella is calculated by the same formula, which shows a quadratic dependence between temperature and path.  For the main reaction zone, in which 86,000 kcal. per hr. are generated in 1 m.³ of catalyst, the following temperature differences are shown:  (a) In the catalyst bed about 8°; (b) in the lamella, 3°; (c) in the water-tube wall, 1°.  Experimental and operating temperature measurements are presented for an active catalyst.  Measurements of H₂O circulation in a synthesis furnace as well as its calculation is given briefly.