CO-hydrogenation over silica supported iron based catalysts: Influence of potassium loading

Five different Fe-Cu/SiO2 catalysts were prepared by a combination of co-precipitation and wet impregnation technique at different K-loading ranging from 0 to 5 wt.% for the conversion of syngas to liquid fuel. Detailed Catalyst characterization was done by BET, TPR, TGA, XRD and TEM techniques. Maximum CO-hydrogenation obtained near to 1% K-loading and catalytic activity decreased at 3% and 5% K loading.