燃料化学学报2017，Vol.45Issue(7)：798-804,7.
溶出温度对乙醇木质素超临界解聚特性影响研究
Effect of extraction temperature on depolymerization characteristics of ethanol organosolv lignin in supercritical ethanol
摘要
Abstract
Effect of extraction temperature (160, 180 and 200℃) on depolymerization characteristics of ethanol organosolv lignin ( EOL) was investigated with a micro autoclave reactor. Three different EOLs ( EOL-160, EOL-180 and EOL-200 ) were prepared by controlling extraction temperature, and their properties including functional groups, molecular weight distribution and thermogravimetric properties were analyzed by infrared spectroscopy ( FT-IR ) , gel permeation chromatography ( GPC ) and thermogravimetric analysis ( TG ) . The liquid and solid products obtaining from EOLs depolymerized in supercritical ethanol were analyzed by gas chromatography/mass spectrometry ( GC/MS) and FT-IR, respectively. The results show that the main phenolic compound product for EOL-160 , EOL-180 and EOL-200 depolymerized in supercritical ethanol were paraethyl phenol, 2,6-dimethoxy phenol and 4-hydroxy-3-methoxy-benzoate, respectively.关键词
溶出温度/乙醇木质素/超临界乙醇/解聚Key words
extraction temperature/ethanol organosolv lignin/supercritical ethanol/depolymerization分类
能源科技引用本文复制引用
王林芳,邹成,郭大亮,薛国新..溶出温度对乙醇木质素超临界解聚特性影响研究[J].燃料化学学报,2017,45(7):798-804,7.基金项目
The project was supported by Zhejiang Province Natural Science Foundation of China (LY16C160005), the Open Fund of Key Laboratory of Biomass Energy and Material of China (JSBEM201504), the Open Fund of Tianjin Key Laboratory of Pulp&Paper (Tianjin University of Science&Technology) (201601) and Zhejiang Provincial Top Key Academic Discipline of Chemical Engineering and Technology, Zhejiang Sci-Tech University(2013YBZX06, ZYG2015012).浙江省自然科学基金(LY16C160005),江苏省生物质能源与材料重点实验室开放基金 (JSBEM201504), 天津市制浆造纸重点实验室(天津科技大学)开放基金(201601)和浙江省高校重中之重学科(2013YBZX06, ZYG2015012)资助 （LY16C160005）
