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 1346.    HAMAI, S., HAYASHI, S., AND SHIMAMURA, K.  Physicochemical Investigations of Catalytic Mechanisms.  V.  Fischer-Tropsch Synthesis of Hydrocarbons.  Bull. Chem. Soc. Japan, vol. 17, 1942, pp. 252-259; Chem. Abs., vol. 41, 1947, p. 4367.

       Co with kieselguhr was used as catalyst with various amounts of ThO₂, CeO₂, and Cu as promoters.  Gas contraction and oil formation from CO and H₂ are recorded.  The gas contraction % is higher for 15-10% CeO₂ and for 2-30% ThO₂.  When CeO₂% is low, the addition to the ThO₂ lowers the activity, but if CeO₂ is high, the addition of ThO₂ does not improve the gas contraction.  CeO₂ gives a relatively high yield of oil and low yield of CH₄, whereas ThO₂ gives a relatively high yield of CH₄ and low yield of oil.