1918. KODAMA, S., TARAMA, K., TAKAZAWA, T., FUJITA, K., TEJIMA, T., ITO, S., ANDYOKOMAKU, Y. Synthesis of Gaseous Hydrocarbons From Carbon Monoxide and Hydrogen. VII. Effect of Temperature on Synthesis With Cobalt Catalysts. Jour. Soc. Chem. Ind. (Japan), vol. 48, 1945, pp. 3-8; Chem. Abs., vol. 43, 1949, p. 2398.

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Literature Abstracts

Hydrocarbons were prepared from a 1:2 mixture of CO and H₂ by means of Co, 100; Cu, 12.5, ThO₂, 2.5; U₃O₈, 1.25; and diatomaceous earth 125 parts, a reaction temperature of 180°-290°, and a period of operation of 24 hr. Temperature elevation increased the yield of the lower hydrocarbons but did not increase the relative yield of CH₄, as was the case with the Fe catalysts. Usually with a Co catalyst a small elevation of temperature caused a remarkable increase in the yield of CH₄, but, from the results of these experiments, it was observed otherwise, although an increase in the relative yield of the gaseous hydrocarbons (CH₄ gasol) was noticeable. In short, it may be impossible to produce the gasol without the other components by elevating the temperature. In these experiments, the maximum yield of gasol was 18.9 l. per m.³ at 270°. In comparing Co and Fe catalysts, the difference is explained by evaporation of hydrocarbons from the surface of the catalyst and a decrease in adsorbed H atoms.