期刊
CATALYSIS TODAY
卷 259, 期 -, 页码 460-466出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cattod.2015.03.041
关键词
Lignin; Depolymerization; Supercritical ethanol; Lewis acid; Alkylation
资金
- Smart Mix Program of the Netherlands Ministry of Economic Affairs
- Netherlands Ministry of Education, Culture and Science
The use of metal acetates, metal chlorides and metal triflates as Lewis acid catalysts for the depolymerization of soda lignin under supercritical conditions was investigated. The reactions were carried out at 400 degrees C in water and ethanol. Lignin conversion in supercritical water led to formation of insoluble char and resulted in low yields of monomeric products. When the reaction was performed in supercritical ethanol, char formation was inhibited and higher yields of low molecular-weight organic products were obtained. The ethanol solvent was also converted in two ways. Firstly, the lignin depolymerization products were alkylated by ethanol. Secondly, ethanol was converted into a range of higher hydrocarbons including paraffins and olefins. Possible mechanisms of the lignin and ethanol conversion reactions are discussed. (C) 2015 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据