Effect of water on the conversions of 2-methoxyphenol and phenol as bio-oil model compounds over ReS2/SiO2 catalyst

LEIVA, K.; SEPÚLVEDA, C.; GARCÍA, R.; FIERRO, J.; ESCALONA, N.:
Catalysis Communications, 53:5 (2014)33-37.

DOI: 10.1016/j.catcom.2014.04.023

Abstract

The effect of water content on the conversion of guaiacol and phenol over ReS₂/SiO₂ catalyst at 250 °C and 5 MPa of pressure was studied. X-ray photoelectron spectroscopy results showed loss of Re dispersion for the catalysts used in the reaction with over 0.5 mL of water content. The decrease in activity in phenol conversion was related to the changes in Re dispersion as a consequence of the effect of water addition. Meanwhile, the decrease in guaiacol conversion was related to loss of Re dispersion together with the inhibition of demethylation pathway.