Deep eutectic solvents consisting of 1-ethyl-3-methylimidazolium chloride and glycerol derivatives for highly efficient and reversible SO2 capture

被引：47

作者：

Long, Guangcai ^{[1
,2
]}

Yang, Chunliang ^{[1
,2
]}

Yang, Xiaoqing ^{[1
,2
]}

Zhao, Tianxiang ^{[1
,2
]}

Xu, Meisong ^{[1
,2
]}

机构：

[1] Guizhou Univ, Sch Chem & Chem Engn, Guiyang 550025, Guizhou, Peoples R China

[2] Key Lab Green Chem & Clean Energy Technol, Guiyang 550025, Guizhou, Peoples R China

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2020年 / 302卷 / 302期

关键词：

SO2; capture; Deep eutectic solvents; Glycerol; EmimCl; IONIC LIQUIDS; CHOLINE-CHLORIDE; LEVULINIC ACID; ABSORPTION; GAS;

D O I：

10.1016/j.molliq.2020.112538

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Development of eco-friendly materials for the removal of SO2 is a significant topic in sustainable chemical engineering process. In this work, we describe an efficient protocol for highly efficient and reversible SO2 capture by deep eutectic solvents (DESs) consisting of 1-ethyl-3-methylimidazolium chloride (EmimCl) and glycerol derivatives. The presented DESs exhibit an equal or much higher absorption capacity than previously reported DESs or ionic liquids in the same conditions. Particularly, EmimCl-glycerol (molar ratio 2:1) shows excellent reversible absorption through physical interactions supporting by FTIR and NMR spectroscopic experiments, thus presenting good potential as a candidate absorbent for the removal of SO2. (C) 2020 Published by Elsevier B.V.

引用

页数：6

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