SO3H-functionalized ionic liquid: Efficient catalyst for bagasse liquefaction

被引：65

作者：

Long, Jinxing ^{[1
]}

Guo, Bin ^{[1
]}

Teng, Junjiang ^{[1
]}

Yu, Yinghao ^{[1
]}

Wang, Lefu ^{[1
]}

Li, Xuehui ^{[1
]}

机构：

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

来源：

BIORESOURCE TECHNOLOGY | 2011年 / 102卷 / 21期

基金：

中国国家自然科学基金;

关键词：

Liquefaction; Bagasse; Acidic ionic liquids; Biochemicals; Mechanism; HOT COMPRESSED WATER; BIOMASS; CONVERSION; HYDROCARBONS; ACID; GASIFICATION; PHASE; WOOD;

D O I：

10.1016/j.biortech.2011.08.043

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Liquefaction is a process for the production of biofuel or value-added biochemicals from non-food biomass. SO3H-. COOH-functionalized and HSO4-paired imidazolium ionic liquids were shown to be efficient catalysts for bagasse liquefaction in hot compressed water. Using SO3H-functionalized ionic liquid, 96.1% of bagasse was liquefied and 50.6% was selectively converted to low-boiling biochemicals at 543 K. The degree of liquefaction and selectivity for low-boiling products increased and the average molecular weight of the tetrahydrofuran soluble products decreased with increasing acidic strength of ionic liquids. Analysis of products and comparative characterization of raw materials and residues suggested that both catalytic liquefaction and hydrolysis processes contribute to the high conversion of bagasse. A possible liquefaction mechanism based on the generation of 3-cyclohexy1-1-propanol, one of the main products, is proposed. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：10114 / 10123

页数：10

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