Degradation of lignin in ionic liquid with HCl as catalyst

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• 作者：Liyuan Xue ; Liangcong Yan ; Yuhu Cui ; Man Jiang ; Xiaoling Xu ; Shengli Zhang ; Jihua Gou and Zuowan Zhou
• 刊名：Environmental Progress & Sustainable Energy
• 出版年：2016
• 出版时间：May 2016
• 年：2016
• 卷：35
• 期：3
• 页码：809-814
• 全文大小：447K
• ISSN：1944-7450

文摘

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.