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- W2017316504 abstract "A new range of sulfided iron catalysts has been synthesised by adding small amounts of Na2S (500–20 000 ppm) to precipitated iron. The new materials, after calcination (400°C, 16 h) and reduction (400°C, 16 h), were subjected to syngas (2 : 1 H2 : CO) at 250°C at 8 bar pressure for up to 8 days. Catalysts with low sulfide concentrations were up to four times more active in the Fischer–Tropsch reaction than a sulfur-free catalyst, while catalysts with high sulfide loadings were apparently poisoned. Increased olefin/paraffin ratios were also obtained at the low sulfide loadings. The new sulfided materials were studied by a combination of BET, DRIFTS, XRD, TPR and SEM and the results indicate that the surface area and reducibility of the iron catalyst are affected by the presence of S2− ions and that SO42− acts as a promoter in the Fischer–Tropsch reaction." @default.
- W2017316504 created "2016-06-24" @default.
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- W2017316504 date "1999-10-01" @default.
- W2017316504 modified "2023-10-16" @default.
- W2017316504 title "The effect of sulfide ions on a precipitated iron Fischer–Tropsch catalyst" @default.
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- W2017316504 doi "https://doi.org/10.1016/s0926-860x(99)00150-7" @default.
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