Degradation of Lignin in Ionic Liquid with HCl as Catalyst

作者：Xue, Liyuan; Yan, Liangcong; Cui, Yuhu; Jiang, Man^*; Xu, Xiaoling; Zhang, Shengli; Gou, Jihua; Zhou, Zuowan

来源：Environmental Progress & Sustainable Energy, 2016, 35(3): 809-814.

DOI：10.1002/ep.12276

• ionic liquid
• lignin degradation
• liquefaction
• low molecular phenols

Lignocellulosic materials consist of 10-30% lignin by weight and 40% by energy (Perlack et al., 2005). As the highest energy component of plant biomass, lignin is composed of phenol units. Eco-friendly degradation of lignin in ILs provides an important way to utilize it efficiently. In this study, 1-methyl-3-benzylimidazolium chloride (BnMIMCl) and 1-methyl-3-benzylimidazolium trichloroacetate (BnMIMTFA) were applied for degradation liquefaction of lignin. The highest liquefaction efficiency of 75.45% was obtained under the optimized condition. This attributed to the good dissolving capability and assistance of ILs to lignin during the degradation. GC-MS analysis showed that 60% of low molecular products were phenols.

• 出版日期2016-5
• 单位西南交通大学