Catalytic delignification of sugarcane bagasse in the presence of acidic ionic liquids

被引：67

作者：

Long, Jinxing ^{[1
]}

Li, Xuehui ^{[1
]}

Guo, Bin ^{[1
]}

Wang, Lefu ^{[1
]}

Zhang, Ning ^{[2
]}

机构：

[1] S China Univ Technol, Pulp & Paper Engn State Key Lab China, Sch Chem & Chem Engn, Guangzhou 510640, Guangdong, Peoples R China

[2] Nanchang Univ, Dept Chem, Nanchang 330047, Peoples R China

来源：

CATALYSIS TODAY | 2013年 / 200卷

关键词：

Bagasse; Delignification; Ionic liquids; Lignin; Liquefaction; STRUCTURAL-CHARACTERIZATION; WOOD LIGNIN; CELLULOSE; CHLORIDE; BIOMASS; HEMICELLULOSES; DISSOLUTION; HYDROLYSIS; CONVERSION; CHEMICALS;

D O I：

10.1016/j.cattod.2012.08.018

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Lignin is one of main components in the most abundant lignocelluloses and is recognized as a unique renewable natural resource for the synthesis of aromatic chemicals. Its isolation and transformation have thereby attracted increasing attention in recent times. Here, an efficient method for the separation of lignin from sugarcane bagasse is reported using acidic ionic liquid catalysts. The structure and physicochemical properties and the molecular weight distribution of the isolated lignin were characterized by FT-IR, H-1 NMR and C-13 NMR, TG, elemental analysis, UV-vis, SEM and GPC. The results showed that acid functionalized ionic liquids are excellent catalysts for the delignification of sugarcane bagasse: 100% isolation of the desired product was achieved under optimized conditions. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：99 / 105

页数：7

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