Establishment of efficient system for bagasse bargaining: Combining fractionation of saccharides, recycling of high-viscosity solvent and dismantling
文献类型： 外文期刊
作者： Li, Yihan 1 ; Kang, Xiheng 1 ; You, Zi 1 ; He, Tieguang 2 ; Su, Tianming 2 ; Zhang, Junhua 3 ; Zhuang, Xinshu 5 ; Zhang, Zhanying 6 ; Ragauskas, Arthur J. 7 ; Song, Xueping 1 ; Li, Kai 1 ;
作者机构： 1.Guangxi Univ, Coll Light Ind & Food Engn, Guangxi Key Lab Clean Pulp & Papermaking & Pollut, Nanning 530004, Peoples R China
2.Guangxi Acad Agr Sci, Agr Resources & Environm Res Inst, Guangxi Key Lab Arable Land Conservat, Nanning 530007, Guangxi, Peoples R China
3.Nanjing Forestry Univ, Coll Chem Engn, Nanjing 210037, Peoples R China
4.Minist Educ, Engn Res Ctr Sugar Ind & Comprehens Utilizat, Nanning 530004, Peoples R China
5.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China
6.Queensland Univ Technol, Ctr Agr & Bioecon, Sch Mech Med & Proc Engn, Brisbane, Qld 4000, Australia
7.Univ Tennessee, Dept Chem & Biomol Engn, Knoxville, TN 37996 USA
关键词： Sugarcane bagasse; Dismantling; High-viscosity system; Saccharides; Solvent reusing; Solvent reusing
期刊名称：BIORESOURCE TECHNOLOGY （ 影响因子：9.0； 五年影响因子：9.5 ）
ISSN： 0960-8524
年卷期： 2024 年 413 卷
页码：
收录情况： SCI
摘要： Sugarcane bagasse (SCB) has a recalcitrant structure, which hinders its component dismantling and subsequent high value utilization. Some organic solvents are favorable to dismantle lignocellulose, but their high viscosity prevents separation of components and reuse of solvents. Herein, ethylene glycol phenyl ether (EGPE)-acid system is used as an example to develop green and efficient methods to dismantle SCB, purify polysaccharides and lignin, and reuse solvents. Results show that dismantling SCB at 130 degrees C, 0.5 % H2SO4, and 100 min can obtain 85.5 % cellulose recovery, 94.1 % hemicellulose removal and 83.7 % lignin removal. Different molecular weight saccharides are separated by membranes filtration and centrifugation, and lignin recovered by antisolvent precipitation. The solvent recovered by distillation, achieving high dismantling efficiency of 89.2 % cellulose recovery, 94.1 % hemicellulose removal and 94.4 % lignin removal after four recycles. Results show a promising approach for the closed-loop process of dismantling lignocellulose, fractionating saccharides, and reusing solvents in high-viscosity systems.
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