|本期目录/Table of Contents|

[1]贾昭炎,王成成,曹春晖,等.深度共熔溶剂预处理木质纤维素研究进展[J].江苏农业科学,2022,50(20):77-85.
 Jia Zhaoyan,et al.Research progress on pretreatment of lignocellulose with deep eutectic solvent[J].Jiangsu Agricultural Sciences,2022,50(20):77-85.
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深度共熔溶剂预处理木质纤维素研究进展(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第50卷
期数:
2022年第20期
页码:
77-85
栏目:
专论与综述
出版日期:
2022-10-20

文章信息/Info

Title:
Research progress on pretreatment of lignocellulose with deep eutectic solvent
作者:
贾昭炎12王成成12曹春晖12刘洋12奚永兰2刘明庆3
1.江苏大学农业工程学院,江苏镇江 212013 ;2.江苏省农业科学院,江苏南京 210014;3.生态环境部南京环境科学研究所,江苏南京 210042
Author(s):
Jia Zhaoyanet al
关键词:
共熔溶剂木质纤维素生物质预处理DES
Keywords:
-
分类号:
TQ353.1
DOI:
-
文献标志码:
A
摘要:
木质纤维素是自然界含量丰富的可再生能源,可转化为生物燃料及其他化工产品,有望代替传统化石燃料,助力碳达峰。但木质纤维素拥有复杂的化学结构,在合理利用前需进行预处理。传统预处理方法存在工艺复杂、成本高等问题。而深度共熔溶剂(DES)作为一种新型的预处理生物质溶剂,在生物质分离方面具有巨大潜力,已得到众多科研工作者认可。本文综述了DES预处理木质纤维素相关研究,对DES进行了详细介绍及分类,根据化学组成将其分为Ⅰ、Ⅱ、Ⅲ、Ⅳ型4种类型的DES。阐明了DES预处理木质纤维素三大组分(木质素、半纤维素、纤维素)的作用机制。并分别对DES预处理木质纤维素三大组分的研究进展进行了总结。在去除木质素时,采用酸度较强的物质作为氢键供体(HBD)制备DES或者选用羧基、胺/酰胺基类DES对木质素的去除效果会更好。另外,相较于纯DES,加水会降低DES的黏度,有利于木质素的溶解。但过量的水会降低DES中氢键的数量,反而不利于木质素的溶解。关于DES分离半纤维素的研究目前大多数集中于预处理条件优化等方面,众多研究表明,以氯化胆碱为氢键受体(HBA)的DES去除半纤维素能力更强。通常情况下,DES在分离三大组分时都希望减少纤维素的溶解,提高半纤维素和木质素的去除率。但也有很多学者进行了提高纤维素在DES中溶解度的研究,然而提升效果并不明显。本文还分析了摩尔比、DES类型和反应温度等因素对预处理效果的影响。众多研究表明,当改变HBD/HBA的摩尔比时,DES预处理效果也各不相同。DES类型和反应温度也会影响木质纤维素的预处理效果。当HBD均为多元醇时,对木质素的去除率为丙二醇>乙二醇>丙三醇。在一定温度范围内,温度提高可获得较好的预处理效果及提高糖收率,但过高的温度会造成较大的糖损失。最后还针对DES存在的问题,对DES的有效设计及未来大规模应用和经济效益前景进行了展望。
Abstract:
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备注/Memo

备注/Memo:
收稿日期:2021-11-24
基金项目:江苏省自然科学基金(编号:BK20201242);国家重点研发计划(编号:2018YFD1100600);中央级公益性科研院所基本科研业务费专项资金(编号:GYZX210514)。
作者简介:贾昭炎(1997—),男,河南濮阳人,硕士研究生,从事农业废弃物资源化利用研究。E-mail:2212016017@stmail.ujs.edu.cn。
通信作者:刘明庆,硕士,工程师,主要从事农业农村污染防治。E-mail:lmq@nies.org。
更新日期/Last Update: 2022-10-20