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Return to Abstracts of Literature 1750-1999

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 1891.    ---------------.  [MURATA, Y., AND YAMADA, T.]  Benzine Synthesis From Carbon Monoxide and Hydrogen at Ordinary Pressure.  LV.  Influence of Nitrogen, Methane, Oxygen, and Ammonia in the Initial Gas Upon the Iron Catalyst.  Sci. Papers Inst. Phys. Chem. Research (Tokyo), vol. 38, 1941, pp. 218-229; Brennstoff-Chem., vol. 24, 1943, p. 10; Chem. Abs., vol. 35, 1941, p. 5284.

        When a mixture of approximate molecular proportions of CO and H₂ is diluted with N₂ and passed at 253° over catalyst having the composition Fe+25% Cu+125% kieselguhr+2% KOH and at a gas velocity of 3.4-4.1 l. per hr., the yield of liquid product decreases with respect to CO and H₂, with increasing amount of N₂ in the initial gas mixture, and the I number of the liquid product increases.  This effect of N₂ in the initial gas mixture is observed when the catalyst has high activity.  When the initial gas is diluted with CH₄, the effect is similar but much less (very little effect when the initial gas contains less than 10% CH₄) than when either N₂ or CO₂ is used as a diluent.  Oxygen strongly decreases the yield of liquid products (initial gas containing 12.6% O₂ decreased the yield 83.3%, based on the CO and H₂ present) and the I number of the liquid produce increases moderately with increasing O₂ content of the initial gas.  When the initial gas mixture contained 5% and 15% respectively of NH₂, the yields of liquid product were decreased 19.5% and 93%, based on the CO and H₂ present.