Vanadium catalyzed guaiacol deoxygenation

被引：45

作者：

Filley, J ^{[1
]}

Roth, C ^{[1
]}

机构：

[1] Natl Renewable Energy Lab, Golden, CO 80401 USA

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 1999年 / 139卷 / 2-3期

关键词：

guaiacol; vanadium oxide; phenol; alpha-terpinene;

D O I：

10.1016/S1381-1169(98)00202-7

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The first row transition metals (vanadium to zinc) supported on alumina were evaluated for their ability to catalyze the formation of phenol from guaiacol (2-methoxyphenol) at atmospheric pressure and 350 degrees C. Vanadium oxide on alumina had the highest activity for phenol formation. The vanadium catalyst was studied in more detail, and the highest yields of phenol and methylated phenols, and the lowest yields of coke, were obtained when an organic reductant, such as alpha-terpinene, was co-fed with the guaiacol. The vanadium catalyst remained active for a significant period of time on stream (8 g of feed per g of catalyst), even with 20% coke present on the catalyst. The possible benefits of vanadium in new biomass upgrading catalysts are discussed, and a reaction mechanism is proposed. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：245 / 252

页数：8

共 23 条

[1] The aryl ether bond reactions with H-donor solvents: Guaiacol and tetralin in the presence of catalysts [J].