Liquefaction of lignin by polyethyleneglycol and glycerol

被引：174

作者：

Jin, Yanqiao ^{[1
]}

Ruan, Xuemin ^{[1
]}

Cheng, Xiansu ^{[1
]}

Lue, Qiufeng ^{[1
]}

机构：

[1] Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2011年 / 102卷 / 03期

关键词：

Enzymatic hydrolysis lignin; Polyethyleneglycol; Liquefaction; Polyol; AGRICULTURAL RESIDUES; POLYURETHANE; PRODUCTS; FOAMS; WOOD;

D O I：

10.1016/j.biortech.2010.10.050

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Enzymatic hydrolysis lignin (EHL), isolated from the enzymatic hydrolysis residues of the biomass, was liquefied using the mixed solvents of polyethyleneglycol (PEG) and glycerol at the temperature of 130-170 degrees C with sulfuric acid as a catalyst. The influences of liquefaction parameters, such as the molecular weight of PEG, mass ratio of sulfuric acid to EHL, liquefaction temperature and time, and mass ratio of liquid (liquefying cosolvent) to solid (EHL) on the residue content and hydroxyl number were discussed. The FT-IR spectrum result showed that the liquefaction product of EHL was polyether polyol. The hydroxyl number of the liquefaction product was 80-120 mgKOH/g higher than that of PEG. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：3581 / 3583

页数：3

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