论文成果
Efficient Cleavage of Lignin-Carbohydrate Complexes and Ultrafast Extraction of Lignin Oligomers from Wood Biomass by Microwave-Assisted Treatment with Deep Eutectic Solvent
- 发布时间：2017-01-05
- 点击次数：
- 影响因子：7.5
- DOI码：10.1002/cssc.201700552
- 所属单位：东北林业大学
- 发表刊物：ChemSusChem
- 摘要：Lignocellulosic biomass is an abundant and renewable resource for the production of biobased value-added fuels, chemicals, and materials, but its effective exploitation by an energy-efficient and environmentally friendly strategy remains a challenge. Herein, a facile approach for efficiently cleaving lignin–carbohydrate complexes and ultrafast fractionation of components from wood by microwave-assisted treatment with deep eutectic solvent is reported. The solvent was composed of sustainable choline chloride and oxalic acid dihydrate, and showed a hydrogen-bond acidity of 1.31. Efficient fractionation of lignocellulose with the solvent was realized by heating at 80 °C under 800 W microwave irradiation for 3 min. The extracted lignin showed a low molecular weight of 913, a low polydispersity of 1.25, and consisted of lignin oligomers with high purity (ca. 96 %), and thus shows potential in downstream production of aromatic chemicals. The other dissolved matter mainly comprised glucose, xylose, and hydroxymethylfurfural. The undissolved material was cellulose with crystal I structure and a crystallinity of approximately 75 %, which can be used for fabricating nanocellulose. Therefore, this work promotes an ultrafast lignin-first biorefinery approach while simultaneously keeping the undissolved cellulose available for further utilization. This work is expected to contribute to improving the economics of overall biorefining of lignocellulosic biomass.
- 合写作者：Wenshuai Chen,Qinqin Xia,Bingtuo Guo,Qingwen Wang,Shouxin Liu,Yixing Liu,Jian Li
- 第一作者：Yongzhuang Liu
- 论文类型：期刊论文
- 通讯作者：Haipeng Yu
- 文献类型：J
- 卷号：10
- 期号：8
- 页面范围：1692-1700
- 是否译文：否
- 发表时间：2017-01-01
- 收录刊物：SCI
- 发布期刊链接：https://chemistry-europe.onlinelibrary.wiley.com/doi/full/10.1002/cssc.201601795