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Literature Abstracts

 1844.    ---------------.  [KODAMA, S.]  Catalytic Reduction of Carbon Monoxide Under Ordinary Pressure.  VI.  The Hydrocarbon-Forming Action of Iron Catalysts.  Jour. Soc. Chem. Ind. (Japan), vol. 33, suppl. 1930, pp. 399-400; Sci. Papers Inst. Phys. Chem. Research (Tokyo), vol. 14, 1930, pp. 169-183; Chem. Abs., vol. 25, 1931, pp. 496, 1039.

        Fe catalysts for synthetic hydrocarbons are of greater commercial importance than those containing Co.  No experimental details on Fe catalysts have yet appeared.  Fe catalysts produce no H₂O; Co catalysts always, sometimes several times as much as hydrocarbon.  The CO₂ content of the reaction gas is about 20% when using Fe catalysts; with Co 5-10%.  The unconverted reaction gas with Fe catalyst contains more CO than H₂; with Co the opposite.  Fe catalysts give a colored oil; Co seldom a yellow, never a colored benzine.  Fe catalysts require higher temperature than Co.  Catalysts containing mostly Fe withdraw O of the CO in the form of CO₂.  Since CO is more decomposed than H₂, the H₂ content of the final gas is always greater than the CO content; with Co, vice versa.  A catalyst containing Fe 1, Cu 1, Na₂CO₃ 0.02, gives the best yield, 1.8 cm.³ kerosine and 1.4 cm.³ benzine from 157.0 l. of gas, which is lower than that from Co-Cu catalysts containing MgO or ZrO₂.  Addition of MgO to the Fe catalyst injured it.  Without addition of alkali an Fe-Cu catalyst forms only lower hydrocarbons.