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Structure properties of pyrolytic lignin extracted from aged bio-oil

Structure properties of pyrolytic lignin extracted from aged bio-oil

作     者:JIANG XiaoXiang NAOKO Ellis ZHONG ZhaoPing 

作者机构:Thermoenergy Engineering Research Institute Southeast University Nanjing 210096 China Department of Chemical and Biological Engineering University of British Columbia Vancouver V6T 1Z3 Canada 

出 版 物:《Chinese Science Bulletin》 (中国科学通报)

年 卷 期:2011年第56卷第14期

页      面:1417-1421页

核心收录:

学科分类:0820[工学-石油与天然气工程] 08[工学] 082002[工学-油气田开发工程] 

基  金:supported by the National Basic Research Program of China (2007CB210208) the National S&T Major Project of China (2008ZX07101) the China Scholarship Council (CSC),NSERC (the Natural Science and Engineering Research Council of Canada),BIOCAP and CFI (Canadian Funding for Innovations) 

主  题:快速热解 木质素 生物油 年龄 结构特性 提取 差示扫描量热法 傅立叶变换红外光谱 

摘      要:Fast pyrolysis is a promising technology that can convert biomass into ***-oil is one such product,known not only as a greenhouse gas-neutral energy source,but also an opportunity to reduce reliance on fossil *** lignin,a fine homogeneous powder,is the water-insoluble fraction of bio-oil and it contributes to the instability of ***,pyrolytic lignin can be used in commercial materials such as adhesives in the wood-based panel *** paper presents the structural characterization of pyrolytic lignin extracted from aged bio-oil and the relationship between its properties and the treatment temperature of the aged *** lignin samples were characterized by Fourier transform infrared spectroscopy,gel permeation chromatography,differential scanning calorimetry,thermogravimetric analysis and proton nuclear magnetic resonance *** average molecular weight of pyrolytic lignin increased from 700 to 1000 g/mol with increasing aging temperature (6-50°C).Differential scanning calorimetry showed that the glass transition temperature of pyrolytic lignin increases with lower heating rate and higher treatment temperature of *** increase in the initial decomposition temperature and the temperature at 95 wt% weight loss of the aged pyrolytic lignin in thermogravimetry were observed for the bio-oil aged at higher *** increase in residue weight of aged pyrolytic lignin was found in bio-oil aged at higher temperatures.

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