文献类型：期刊文献

英文题名：Mild one-pot three components fractionation of lignocellulose enhancing by ternary solvents behavior

作者：Ding, Wenbin[1,2,3];Huang, Lintao[1,2,3];Shi, Gaojie[1,2,3];Yan, Bochao[1,2,3];Zhang, Suping[1,2,3]

机构：[1]East China Univ Sci & Technol, Engn Res Ctr Resource Utilizat Carbon containing W, Minist Educ, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, State Key Lab Coal Liquificat Gasificat & Utilizat, 130 Meilong Rd, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, Res Ctr Biomass Energy, Sch Resources & Environm Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2025

卷号：226

外文期刊名：INDUSTRIAL CROPS AND PRODUCTS

收录：;EI(收录号：20250917938483);WOS:【SCI-EXPANDED(收录号:WOS:001435241200001)】；

基金：This work was supported financially by the National Key R & D Pro-gram of China (2022YFC3902504) .

语种：英文

外文关键词：Lignocellulose fractionation; Biphasic system; Ternary solvents; Acetone/pentanol/DA; Hansen solubility parameters

摘要：The sustainable biorefinery concept relies on the isolation and transformation of three primary components in lignocellulose. Herein, a one-pot method for lignocellulose fractionation/conversion system was proposed by a combination of organic solvents called acetone/pentanol/dilute sulphuric acid (DA) (volume ratio=2:3:5). Up to 70.44 % of hemicellulose was recovered from the aqueous phase in the form of xylose, and 87.52 % of cellulose with purity of 90.11 % and 86.43 % of lignin were obtained as solid from the insoluble solid and organic phase, respectively (140 degrees C, 40 min, 0.8 % DA). The characterization of the separated cellulose and lignin showed that the crystallinity of cellulose was limited and the native structure of lignin with beta-O-4 bonds of 85.88 % was recovered. The effect of acetone on delignification ability of the system was analyzed via density functional theory (DFT), indicating that acetone could improve mass transfer efficiency and promote the migration of lignin to organic phase. This study provides a possibility for efficient fractionation /conversion of the whole components from lignocellulose.