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Title

Effect of mo content in mo(x)/g-AL2O3 catalysts over the conversion of 2-methoxyphenol as lignin-derivates components

AuthorsLeiva, Katherine; Sepúlveda, Catherine; García Jiménez, Ricardo ; García Fierro, José Luis ; Reyes, P.; Ghampson, I.T; Baeza, Patricio; Villarroel, Mirza ; Escalona, Néstor
KeywordsMoS2
Acid strength
Hydrodeoxygenation
2-methoxyphenol
Issue DateDec-2013
PublisherSociedad Chilena de Química
CitationJournal of the Chilean Chemical Society 58(4): 1947-1951 (2013)
AbstractThe effect of Mo loading (10, 12, 15, 17 and 20 wt.%) on the physicochemical properties and reactivities of Mo(x)/g-Al2 O3 sulfide catalysts for the conversion of 2-methoxyphenol at 573 K and 5 MPa of hydrogen pressure were studied. The catalysts were characterized by specific area (SBET), electrophoretic migration (EM), X-ray photoelectron spectroscopy (XPS) and surface acidity techniques. The highest conversion observed for the catalyst with a Mo loading of 15 wt.% was attributed to an increase in the number of active sites due to highly dispersed Mo species. At higher Mo loadings, the formation of Mo aggregates led to lower guaiacol conversion. The differences in the phenol/catechol ratio were explained by the acid strengths of the sulfided catalysts.
Publisher version (URL)https://doi.org/10.4067/S0717-97072013000400007
URIhttp://hdl.handle.net/10261/183379
DOI10.4067/S0717-97072013000400007
ISSN0717-9324
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(ICP) Artículos
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