EFFECT OF MO CONTENT IN MO(X)/γ-AL2O3 CATALYSTS OVER THE CONVERSION OF 2-METHOXYPHENOL AS LIGNIN-DERIVATES COMPONENTS

Journal of The Chilean Chemical Society

FIERRO, J. L. G¹  BAEZA, P²  VILLARROEL, M³  SEPÚLVEDA, C⁴  ESCALONA, N⁴  REYES, P⁴  GHAMPSON, I. T⁴  GARCÍA, R⁴  LEIVA, K⁴ 

[1] CSIC, Madrid, Spain;Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile;Universidad Católica Silva Henríquez, Santiago, Chile;Universidad de Concepción, Concepción, Chile

关键词: hydrodeoxygenation;    2-;    methoxyphenol;    MoS2;    acid strength.;   

DOI  :  10.4067/S0717-97072013000400007

学科分类：化学（综合）

来源: Sociedad Chilena de Quimica

【 摘 要 】

The effect of Mo loading (10,12, 15, 17 and 20 wt.%) on the physicochemical properties and reactivities ofMo(x)/γ-Al2O3sulfide catalysts for the conversion of 2-methoxyphenol at 573 K and 5 MPaof hydrogen pressure were studied. The catalysts were characterized by specificarea (SBET), electrophoretic migration (EM), X-ray photoelectronspectroscopy (XPS) and surface acidity techniques. The highest conversion observedfor the catalyst with a Mo loading of 15 wt.% was attributed to an increasein the number of active sites due to highly dispersed Mo species. At higherMo loadings, the formation of Mo aggregates led to lower guaiacol conversion.The differences in the phenol/catechol ratio were explained by the acid strengthsof the sulfided catalysts.

【 授权许可】

Unknown