室温离子液体溶解和分离木质纤维素  

Dissolution and Separation of Lignocellulose with Room-Temperature Ionic Liquids

作　　者：郑勇[1] 轩小朋[1] 许爱荣[2] 郭蒙[1] 王键吉[1] 

机构地区：[1]河南师范大学化学与环境科学学院,新乡453007 [2]兰州大学化学化工学院,兰州730000

出　　处：《化学进展》2009年第9期1807-1812,共6页Progress in Chemistry

基　　金：国家高技术发展计划(863)项目(No.2007AA05Z454);河南省杰出人才计划(No.084200510015)资助

摘　　要：作为世界上最丰富的生物质资源,木质纤维素是生产清洁能源和精细化工品的天然原料。室温离子液体是近年来出现的一类绿色材料,在溶解和分离木质纤维素方面具有广阔的应用前景。本文在介绍木质素、纤维素、半纤维素和相关室温离子液体的组成与结构的基础上,综述了室温离子液体在溶解、分离木质纤维素方面的研究进展。根据目前所报道的研究结果,总结了不同离子液体对木质素、纤维素、半纤维素的溶解作用以及对木质纤维素的分离性能,分析了离子液体的结构与其溶解性能的关系,讨论了可能的溶解机理。最后提出了这一领域存在的问题,并对其未来的发展作了展望。As the richest biomass in the world, lignocellulose is the natural feedstock for producing clean energy and fine chemicals. Room-temperature ionic liquids, as a class of green materials developed in recent years, have important applications in the area of dissolution and separation of lignocellulose. In this paper, after a brief introduction for the composition and structure of lignin, cellulose, hemicellulose and room-temperature ionic liquids, the recent progress in dissolution and separation of lignocellulose with ionic liquids is reviewed. Based on the experimental results reported in literature, the dissolution and separation performance of ionic liquids for lignin, cellulose and hemicellulose are summarized. The relationship between structure of ionic liquids and their dissolution performance is analyzed, and the possible dissolution mechanism is discussed. Finally, some problems in this area are proposed and the development tendency is prospected.

关 键 词：室温离子液体 木质纤维素 溶解 分离 

分 类 号：O645.4[理学—物理化学] TQ35[理学—化学]