Enhanced pretreatment of cornstalks by binary ionic liquids

XU Tingting; XU Junli; ZHANG Zhibo; ZHOU Qing; XIN Jiayu; LV Xingmei; ZHANG Suojiang

doi:10.3969/j.issn.0438-1157.2013.z1.010

您当前的位置：

首页 >

文章列表页 >

Enhanced pretreatment of cornstalks by binary ionic liquids

更新时间：2025-12-10

- Enhanced pretreatment of cornstalks by binary ionic liquids
- CIESC Journal Issue S1, Pages: 66-72(2013)
- 作者机构：
  
  1. 中国科学院大学,北京,100190
  2. 中国科学院过程工程研究所,北京,100190
  3. 河南大学化学化工学院,河南,开封,475004
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2013.z1.010
  CLC： Q027TQ028.6
- Online First：30 December 2013，
  
  Published：30 December 2013
- 稿件说明：
移动端阅览
XU Tingting, XU Junli, ZHANG Zhibo, et al. Enhanced pretreatment of cornstalks by binary ionic liquids[J]. CIESC Journal, 2013, (S1): 66-72.
DOI：

XU Tingting, XU Junli, ZHANG Zhibo, et al. Enhanced pretreatment of cornstalks by binary ionic liquids[J]. CIESC Journal, 2013, (S1): 66-72. DOI： 10.3969/j.issn.0438-1157.2013.z1.010.

摘要

为了提高生物质秸秆的溶解率、优化秸秆组分再分布，采用1-丁基-3-甲基咪唑氯盐([Bmim]Cl)和1-乙基-3-甲基咪唑醋酸盐([Emim][OAc])的二元离子液体混合体系，考察溶剂组成、反应温度和处理时间三因素对预处理的影响。结果表明，随着[Bmim]Cl在二元离子液体中摩尔比的升高，秸秆溶解率呈先上升后下降的趋势；纤维素在处理后秸秆中所占比例也遵循此规律。随着温度升高，溶解率逐渐增加，当温度超过100℃时，二元离子液体溶解液的黏度发生突变，秸秆发生变性；此外，随着处理时间的延长，溶解率逐渐升高，但是超过3 h以后，溶解效果提升并不明显。综合各因素作用效果，确定最佳反应温度为90℃，最佳处理时间3 h。在此条件下，秸秆的溶解率达到46.53%，经处理后秸秆中纤维素比例达到55.77%。

Abstract

In order to promote biomass dissolution and optimize distribution of cornstalk components

1-butyl-3-methylimdazolium chloride ([Bmim]Cl) and 1-ethyl-3-methylimidazolium acetate([Emim][OAc]) were used. Effect of solvent ratio

temperature and time on pretreatment was investigated. As a result

with the rise of [Bmim]Cl

cornstalk dissolution shows an inverted “V” change tendency

and the same trend occurs to cellulose content in pretreated cornstalk. Furthermore

the dissolution rate increases with the time and temperature. However

when the temperature was over 100℃

the physical properties of dissolution system would change dramatically. Besides

more than 3 h treatment would not improve the dissolution performance. So the optimal condition is 90℃

3 h. Under these conditions

dissolution of cornstalk is up to 46.53%

and cellulose in pretreated cornstalk is also concentrated to 55.77%.

关键词

Keywords

references

Views

386

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Effect of ionic liquid micro emulsion pretreatment on rice straw at ultra-high pressure

Enhanced effects of ionic liquid pretreatment on rice straw by instant catapult steam explosion

Pyrolysis study of bamboo Phyllostachys edulis pretreated with ionic liquids mixtures

Progress of conversion of cellulose resource in ionic liquids

Study on dissolution of cellulose by [Emim]Ac-[Emim]OH-DMSO ternary system

Related Author

GAO Jing

ZHENG Caiju

TAN Tingru

ZHANG Di

LIU Shucheng

JI Hongwu

QIN Jincheng

HAO Xuemi

Related Institution

College of Food Science and Technology, Guangdong Ocean University

Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution

Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety

School of Life Science and Biotechnology, Dalian University of Technology

Graduate School of Science and Engineering, Saitama University, Saitama City 3388570

⁰