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Return to Abstracts of Literature 1750-1999

Literature Abstracts

 1930.    KODAMA, A., FUNABASHI, W., HASHIMOTO, G., HIRAO, T., TAHARA, H., MATSUMURA, A., KATO, J., AND TARAMA, Y.  Process Development in the Hydrocarbon Synthesis to 1941.  Bureau of Mines Inf. Circ. 7593, 1951, 41 pp.

        Report compiled from Japanese documents on the investigation of the Fischer-Tropsch process.  Some of the results are summarized as follows.  (Experiment 17.)  Using a Co catalyst in a water-cooled converter (designed for synthesis gas throughput of 100 m.³ per hr.), a 2-week run was carried out successfully.  Over a reaction temperature range 200°-215° and at an average gas throughput of 79.6 m.³ per hr., the following average yields were obtained at an average apparent contraction of 56.2%:  168 ml. H₂O, 86 ml. of primary liquid products (oil), and 7 l. of gasol per m.³ of synthesis gas.  Correcting these results for the 15.5% of inerts in the synthesis gas, an actual contraction of 66.5% was obtained and the yields were increased to 199 ml. H₂O, 102 ml. oil, and 8 l. gasol per m.³ of pure 2 H₂:1 CO synthesis gas.  The catalyst was constituted as follows:  100 Co:10 Cu:5 ThO₂:2.5 U₃O₈:125 diatomaceous earth.  The results suggest that commercial synthesis of gasoline and hydrocarbon oils in a water-cooled converter may be economically feasible.  Preparation and purification of synthesis gas is described.  Using the same converter and an Fe catalyst (experiment 18) 

         [a mixture of two catalysts of different Cu contents – 100 Fe:25 Cu (12.5 Cu); 2 Mn:20 H₃BO₃:4 K₂CO₃:125 kieselguhr], a 1-month run was made.  The average operating results compared favorably with that using Co catalyst:

                                                                                                                                                                                   Iron                   Cobalt  

Operating time, days......................................... 14........................ 25

Initial temp., °C................................................202...................... 235

Final temp., °C .............................................. 211....................... 238

Synthesis gas used m.³............................... 26,729.................. 56,255

Total oil formed, l......................................... 2,288....................4,203

            cc. per m.³ synthesis gas                        86                          75

            cc. per m.³ useful gas..                         102                         86

            cc. per m.³ H₂+CO.....                        139                       180