Investigation of tertiary amine-based PILs for ideal efficient SO2 capture from CO2

被引：15

作者：

Geng, Zeyu ^{[1
]}

Xie, Qin ^{[1
]}

Fan, Zhongjiao ^{[1
]}

Sun, Weining ^{[1
]}

Zhao, Wei ^{[1
]}

Zhang, Junhao ^{[1
]}

Chen, Jianqiu ^{[1
]}

Xu, Yun ^{[1
]}

机构：

[1] China Pharmaceut Univ, Sch Engn, Nanjing 211198, Peoples R China

来源：

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING | 2021年 / 9卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Ionic liquids; SO2; Tertiary amine; Absorption; FUNCTIONALIZED IONIC LIQUIDS; HIGHLY EFFICIENT; FLUE-GAS; REVERSIBLE CAPTURE; CARBON-DIOXIDE; LOW-VISCOSITY; ABSORPTION; MDEA; DESULFURIZATION; SOLUBILITY;

D O I：

10.1016/j.jece.2021.105824

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Four tertiary amine-based protic ionic liquids (PILs) have been carefully designed to investigate the performance of SO2 uptake. Their physical properties of densities and viscosities were determined. In the four PILs, the highest capacity for SO2 of the four PILs reached up to 5.64 mol/kg ILs (P = 1.0 bar, T = 313.2 K). The ideal selectivity of SO2/CO2 was up to 250 in the separation application of SO2 from CO2. The kinetic study demonstrated that the PILs could efficiently capture SO2 quickly under the ambient pressure. Based on the SO2 absorption capacity and selectivity, excellent recyclability, and fast absorption process, the PILs in this work are considered as a potential alternative to traditional absorbents in the flue gas desulfurization (FGD).

引用

页数：9

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