Enhancing Stability of γ-Al2O3-Supported NiCu Catalysts by Impregnating Basic Oxides in the Hydrodeoxygenation of Anisole

Enhancing Stability of γ-Al2O3-Supported NiCu Catalysts by Impregnating Basic Oxides in the Hydrodeoxygenation of Anisole

Basic oxides such as CaO and MgO were added to a γ-Al2O3 support in NiCu-catalyzed hydrodeoxygenation of anisole. A commercial CaO-MgO-γ-Al2O3 was compared to a benchmark γ-Al2O3 and in-house variants with sequential oxide impregnation prior to NiCu impregnation. CaO did not have a significant impac...

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Veröffentlicht in:Catalysts 2024-03, Vol.14 (3), p.166
Hauptverfasser: Vandevyvere, Tom, Sabbe, Maarten K., Thybaut, Joris W., Lauwaert, Jeroen
Format: Artikel
Sprache:eng
Schlagworte:
Acids
Aluminum oxide
Anisole
Basic oxides
Benchmarks
bimetallic catalyst
bio-oil
Biodiesel fuels
Biofuels
Biomass
Calcium oxide
Catalysts
hydrodeoxygenation
Lignocellulose
Magnesium oxide
Nanoparticles
NiCu
pyrolysis-oil
Stability
Transitional aluminas
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Zusammenfassung:Basic oxides such as CaO and MgO were added to a γ-Al2O3 support in NiCu-catalyzed hydrodeoxygenation of anisole. A commercial CaO-MgO-γ-Al2O3 was compared to a benchmark γ-Al2O3 and in-house variants with sequential oxide impregnation prior to NiCu impregnation. CaO did not have a significant impact on activity compared to the benchmark, while MgO improved NiCu dispersion, enhancing activity. Co-impregnation of CaO and MgO resulted in intermediate activity. Despite decreased demethoxylation, likely due to moderated support acidity, both CaO-modified and the commercially supported catalysts showed improved stability over 48 h Time On Stream.
ISSN:2073-4344
2073-4344
DOI:10.3390/catal14030166