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- W3120133798 abstract "CO2 hydrogenation to light olefins over Fe-Co-Zn/K-Al2O3 catalysts with different Zn loading contents (0–1.74 wt%) is studied. The addition of Zn improves the dispersion and the reducibility of iron oxides. The amount of CO adsorbed of the catalysts showed a volcanic trend as a function of Zn content with its maximum of 2.42 μmol g−1 at 0.58 wt% Zn, suggesting an increase of number of active sites. The 0.58 wt% Zn-promoted Fe-Co/K-Al2O3 catalyst shows superior activity for light olefins yield (19.9%) under the optimum operating conditions of 340 °C, 25 bar, 9,000 mL gcat−1 h−1 and H2 to CO2 ratio = 4. A gradual decrease in olefin to paraffin ratio with an almost constant CO2 conversion as a function of time-on-stream is observed, which is related to a continuous increase of iron carbide content, indicating that the iron carbide can be acted as the active site for paraffins production." @default.
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- W3120133798 date "2021-04-01" @default.
- W3120133798 modified "2023-10-14" @default.
- W3120133798 title "Highly active Fe-Co-Zn/K-Al2O3 catalysts for CO2 hydrogenation to light olefins" @default.
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- W3120133798 doi "https://doi.org/10.1016/j.ces.2020.116428" @default.
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