Abstract
Effect of partial metal reduction on the property of supported iron catalysts has been studied using 9.1 wt% FWSiO2 as a model catalyst and CO hydrogenation as a test reaction. The extent of iron reduction does not alter the intrinsic activity of iron nor distribution of the hydrocarbon products with specific carbon numbers, but significantly changes the olefin/paraffin ratio among the products. This kinetic behavior agrees with the result of gas chemisorption that the rL/CO adsorption ratio decreases as the catalyst is reduced poorly. Well-reduced iron catalysts deactivate during the reaction because the carbon species deposited on the surface gradually transform into less-reactive ones as observed in the TPSR experiments.
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Moon, S.H., Park, C.W., Shin, H.K. et al. Effect of partial metal reduction on the catalytic property of Fe/SiO2 in CO hydrogenation. Korean J. Chem. Eng. 8, 114–119 (1991). https://doi.org/10.1007/BF02697385
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DOI: https://doi.org/10.1007/BF02697385