文献类型：期刊文献

英文题名：Comparative Study for the Separation and Depolymerization Behavior of Lignin from Different Separation Methods

作者：Yan, Bochao[1,2]; Lin, Xiaoyu[1,2]; Xiao, Jin[1,2]; Fu, Yingzheng[1,2]; Zhang, Suping[1,2]

机构：[1] Engineering Research Center of Resource Utilization of Carbon-containing Waste with Carbon Neutrality, Ministry of Education, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China; [2] Research Center for Biomass Energy, School of Resources and Environmental Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China

年份：2023

外文期刊名：SSRN

收录：EI(收录号：20230221925)

语种：英文

外文关键词：Condensation - Eutectics - Ionic liquids - Monomers - Solvents

摘要：Due to its natural phenolic structure, lignin is the promising feed stock for the production of value-added phenolic monomers. Various catalyze strategies have been developed for efficient lignin depolymerization, however the relationship among separation methods, lignin structure and its depolymerization behavior have received less attention. In this work, lignin samples were isolated by four methods (organic solvent, ionic liquids, deep eutectic solvents, acid-alcohol) using different strategies and their structure were characterized. It was found p-toluenesulfonic acid and deep eutectic solvents were effectively solvents for lignin separation and for structure protection. The less condensed lignin also showed better performance on mono-phenols production. Whereas the condensation C-C bonds formed in separation would hinder the depolymerization and lead to a lower phenolic monomers yield. The work reveals that the condensation degree caused by separation have great impact on lignin depolymerization to produce phenolic monomers. ? 2023, The Authors. All rights reserved.