Copper, potassium promoted iron on metallosilicate and aluminum oxide supports synthesized via a non-hydrolytic sol-gel for Fischer-Tropsch
Articolo
Data di Pubblicazione:
2024
Citazione:
Copper, potassium promoted iron on metallosilicate and aluminum oxide supports synthesized via a non-hydrolytic sol-gel for Fischer-Tropsch / T.N. Eran, F. Galli, J. Guyot, J. Lefebvre, A. Grainca, G. Patience, C. Pirola. - In: CATALYSIS TODAY. - ISSN 0920-5861. - 433:(2024 May 01), pp. 114655.1-114655.15. [10.1016/j.cattod.2024.114655]
Abstract:
We developed a promoted iron based catalyst that converts 20% more CO to diesel than the unpromoted
counterparts. The synthesis involves a non-hydrolytic sol-gel method (NHSG) and 0.04 g g 1 copper and
0.02 g g 1 potassium as promoters. The iron catalyst supports included cerium and zirconium metallosilicates
and Catalox and Dispal commercial aluminum oxides from Sasol. At 325 ∘C and 20 bar, CO conversion over the
Fe/Ce/SiO2-K,Cu, exceeded 85% while at the same conditions it was only 68% over the unpromoted catalyst. Fe/
Zr/SiO2-K,Cu converted less CO than the cerium-silicate (75%) but the unpromoted zirconium-silicate only
converted 43% of the CO. The conversion and selectivity of the Catalox was about the same as the ceriumsilicate,
while the Dispal performance was equivalent to the zirconium-silicate. This study also highlights the
importance of support and promoters in FTS, demonstrates the potential of the NHSG method to synthesize
promoted iron catalysts with various supports and lays the foundation for developing efficient and stable catalysts
for converting syngas to hydrocarbons.
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
T.N. Eran, F. Galli, J. Guyot, J. Lefebvre, A. Grainca, G. Patience, C. Pirola
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