Effects of Sulfur Poisoning of a Reduced Fused Magnetite Catalyst in the Fischer-Tropsch Synthesis

摘要: Addition of H/sub 2/S to synthesis gas with catalyst suspended in octacosane increased activity by 60% at a sulfur loading 1.3 mg S/g Fe, beyond which decreased. Dibenzothiophene (DBT) present phenanthrene during activation did not exhibit this effect. The two poisons reduced comparably loadings about 10 Fe. Unlike 2/S, DBT caused marked drop selectivity form methane and an increase olefin/paraffin ratio products, indicating that it decreased the hydrogenation capability catalyst. Effects on olefin isomerization oxygenate concentrations are also presented.