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

Journal Article · · Ind. Eng. Chem. Process Des. Dev.; (United States)
OSTI ID:5421997
Addition of H/sub 2/S to synthesis gas with catalyst suspended in octacosane increased catalyst activity by 60% at a sulfur loading of 1.3 mg of S/g of Fe, beyond which catalyst activity decreased. Dibenzothiophene (DBT) present in phenanthrene during catalyst activation did not exhibit this effect. The two poisons reduced activity comparably at loadings of about 10 mg of S/g of Fe. Unlike H/sub 2/S, DBT caused a marked drop in selectivity to form methane and an increase in olefin/paraffin ratio of products, indicating that it decreased the hydrogenation capability of the catalyst. Effects of the two poisons on olefin isomerization and oxygenate concentrations are also presented.
Research Organization:
Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts
OSTI ID:
5421997
Journal Information:
Ind. Eng. Chem. Process Des. Dev.; (United States), Journal Name: Ind. Eng. Chem. Process Des. Dev.; (United States) Vol. 24:2; ISSN IEPDA
Country of Publication:
United States
Language:
English