4.3 Article

Catalytic Conversion of Synthesis Gas to Olefins and Alcohols in the Presence of Fe/C Catalysts

Journal

PETROLEUM CHEMISTRY
Volume 59, Issue 11, Pages 1249-1255

Publisher

MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S0965544119110057

Keywords

synthesis gas; conversion; liquid olefins; monohydric fatty alcohols; catalysts; promoting additives

Funding

  1. Ministry of Education and Science of the Russian Federation [RFMEFI57417X0138, 14.574.21.0138]

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Effect of the chemical composition of catalysts for synthesis gas conversion to liquid olefins (carbon fiber-supported iron catalyst (Fe/CF) with promoting additives) and monohydric fatty alcohols (Fe-Co/C carbon-containing composite catalysts) on the main synthesis parameters has been studied. Characteristics of the pore structure and the morphology of test samples of catalysts for the synthesis of liquid olefins and monohydric fatty alcohols have been determined. It has been found that the introduction of promoters leads to significant changes in the characteristics of the pore structure of Fe/CF catalysts, in particular, to an increase in the surface area and average pore diameter of the catalyst. The highest efficiency for liquid olefins is achieved in the presence of a 15%Fe + 1%K/CF catalyst containing 15% Fe2O3 and 1% K2O. The study of synthesis gas conversion to monohydric alcohols has revealed that, for a 20%(Fe-Co)/C catalyst, the optimum ratio is Co : Fe = 1 : 1. This catalyst has a large specific surface area and provides the highest yield of liquid products, the highest efficiency for them, and a high selectivity for monohydric aliphatic fatty alcohols.

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