Abstract
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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