Decomposition of a phenolic lignin model compound over organic N-bases in an ionic liquid
发表时间：2019-03-09
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- 论文类型：
- 期刊论文
- 第一作者：
- Jia, Songyan
- 通讯作者：
- Ekerdt, JG (reprint author), Univ Texas Austin, Dept Chem Engn, Austin, TX 78712 USA.
- 合写作者：
- Cox, Blair J.,Guo, Xinwen,Zhang, Z. Conrad,Ekerdt, John G.
- 发表时间：
- 2010-08-01
- 发表刊物：
- HOLZFORSCHUNG
- 收录刊物：
- SCIE、EI
- 文献类型：
- J
- 卷号：
- 64
- 期号：
- 5
- 页面范围：
- 577-580
- ISSN号：
- 0018-3830
- 关键字：
- beta-O-4 bond; ionic liquid; lignin model compound; N-base; TBD
- 摘要：
- Lignin depolymerization is a necessary process step in utilizing the carbohydrates in biomass and in potentially converting the lignin into a chemical feedstock. Lignin contains several aryl-alkyl ether linkages and the beta-O-4 linkage is dominant among lignins. Base-mediated cleavage of the beta-O-4 bond in a lignin model compound, guaiacylglycerol-beta-guaiacyl ether, is reported. Ionic liquids have shown promise in a variety of biomass processes and this study explores the potential to use an ionic liquid solvent (1-butyl-2,3-dimethylimidazolium chloride) and non-aqueous bases in cleaving the beta-O-4 bond. N-bases of varying basicity and structure were used at temperatures up to 150 degrees C. The cleavage reaction was not found to be catalytic. Among all the tested N-bases, 1,5,7-triazabicyclo[4.4.0]dec-5-ene was the most active, leading to more than 40% beta-O-4 ether bond cleavage, and the higher activity is probably associated with the exposed nature of the N-atoms.
- 是否译文：
- 否
