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    Development of an Attrition Resistant Fischer–Tropsch Catalyst for Slurry Operation
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    Abstract Used ZrO2 modified γ-Al2O3 as support, Co-Ru catalysts were prepared by incipient impregnation method. The effects of impregnation solvents on the performances of catalysts were examined. The catalyst was prepared with ethanol solution and high Co dispersion was obtained, exhibiting highest activity of CO hydrogenation, very low methane selectivity, and high heavy hydrocarbon C5 + selectivity. The catalysts were prepared with aqueous solution and methanol solution, and the reaction behaviors were similar. The solvent isopropanol caused the lowest catalytic activity and highest methane selectivity. Increasing the reaction temperature enhanced the CO hydrogenation rate, and the CO conversion slightly increased the CO2 selectivity and favored the formation methane and light hydrocarbons, while the chain growth probability decreased. For the catalyst prepared with ethanol, the CO conversion, the CH4 selectivity, and the C5 + selectivity were 94.16%, 5.65%, and 88.2%, respectively, and the chain growth probability was 0.87 at 493 K, 1.5 MPa, 800 h−1, and n(H2):n(CO) = 2.0 in feed.
    Fischer–Tropsch process
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    Fischer-Tropsch synthesis is one of the most important technologies for syngas to liquid. The activity and selectivity for catalysts are key factors in this process. At present, there are mainly two kinds of catalysts, Fe-based and Co-based ,for it. Fe-based catalysts have lower cost but higher WGS activity ,compared with Co-based catalysts.The characteristic and development of Fe-based catalysts are reviewed, and then the factors affecting the activity and selectivity of catalysts are analysed.
    Fischer–Tropsch process
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