スラリー法による塩素含有マグネタイト触媒上での一酸化炭素の軽質オレフィンへの水素化

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タイトル別名
  • Hydrogenation of carbon monoxide to light olefins over chlorine-containing magnetite catalysts in slurry phase.

抄録

Hydrogenation of carbon monoxide was carried out at P=10atm, T=325°C, and GHSV=1, 000-5, 000h-1 over chlorine-containing magnetite catalysts in the slurry phase. High selectivities to light olefins (C=2-C=4) of 48% with suppression of methane formation to 11% were obtained with these catalysts. Carbon dioxide, a by-product of the reaction, was hardly produced over the catalysts. The chlorine content in the used catalysts, determined by X-ray fluorescence spectrometry, was in the atomic ratio range of Cl/Fe=0.002-0.01. The XPS results of the catalysts showed that the surface concentration of chlorine was in the range of Cl/Fe=0.1-0.2, and that the chlorine on the surface was more negatively charged than that of the iron chloride. The chlorine prevented over-reduction of the surface to metallic iron during the reaction. These effects were explained in terms of electron attraction of the chlorine on the surface.

収録刊行物

  • 石油学会誌

    石油学会誌 29 (1), 1-7, 1986

    公益社団法人 石油学会

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