Pontificia Universidad Católica de Chile Pontificia Universidad Católica de Chile
Blanco E., Dongil A., Tyrone I., García-Fierro J.L., Escalona N. (2021)

Optimizing the carburization conditions of supported rhenium carbide for guaiacol conversion

Revista : Applied Catalysis A-General
Volumen : 623
Páginas : 118267
Tipo de publicación : ISI Ir a publicación


The present work evaluates the effect of ethylene content of a carburization mixture on the formation of carburized rhenium supported on activated carbon. The resulting catalysts were characterized by N2 physisorption, X-ray diffraction, Raman spectroscopy, X-ray photoelectron spectroscopy and temperature-programmed reduction, and the results show a strong effect on the final phase obtained. A high amount of ethylene inhibited the carburization process, resulting in carbon formation, while a lower amount (? 35 %) of ethylene was favorable to the formation of the carbide phase. The catalysts were evaluated for the hydrodeoxygenation (HDO) of guaiacol, a bio-oil model compound, and a high yield of benzene (50 %), a desirable aromatic compound, was obtained at complete conversion over the catalysts containing the carbide phase