Ternary System of Fe-based Ionic Liquid, Ethanol and Water for Wet Flue Gas Desulfurization

Chinese Journal of Chemical Engineering ›› 2012, Vol. 20 ›› Issue (1): 140-145.

Ternary System of Fe-based Ionic Liquid, Ethanol and Water for Wet Flue Gas Desulfurization

解美莹, 李沛沛, 郭惠锋, 高丽霞, 余江

Research Group of Environmental Catalysis and Separation Process, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China

收稿日期:2011-08-14 修回日期:2011-11-16 出版日期:2012-02-28 发布日期:2012-05-03
通讯作者: YU Jiang,E-mail:yujiang@mail.buct.edu.cn
基金资助:
Supported by the National Natural Science Foundation of China (21076019,90610007);the National High Technology Research and Development Program of China (2007AA06Z115);the Ph.D. Programs Foundation of Ministry of Education of China (20090010110003);the Fundamental Research Funds for the Central Universities (ZD1001)

Ternary System of Fe-based Ionic Liquid, Ethanol and Water for Wet Flue Gas Desulfurization

XIE Meiying, LI Peipei, GUO Huifeng, GAO Lixia, YU Jiang

Research Group of Environmental Catalysis and Separation Process, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China

Received:2011-08-14 Revised:2011-11-16 Online:2012-02-28 Published:2012-05-03
Supported by:
Supported by the National Natural Science Foundation of China (21076019,90610007);the National High Technology Research and Development Program of China (2007AA06Z115);the Ph.D. Programs Foundation of Ministry of Education of China (20090010110003);the Fundamental Research Funds for the Central Universities (ZD1001)

摘要/Abstract

摘要： Fe-based ionic liquid(Fe-IL) was synthesized by mixing FeCl₃·6H₂O and 1-butyl-3-methylimidazolium chloride [Bmim]Cl in this paper.The phase diagram of a ternary Fe-IL,ethanol and water system was investigated to construct a ternary desulfurization solution for wet flue gas desulfurization.The effects of flow rate and concentration of SO₂,reaction temperature,pH and Fe-IL fraction in aqueous desulfurization solution on the desulfurization efficiency were investigated.The results shows that the best composition of ternary desulfurization solution of Fe-IL,ethanol and water is 1:1.5:3 by volume ratio,and pH should be controlled at 2.0.Under such conditions,a desulfurization rate greater than 90% could be obtained.The product of sulfuric acid had inhibition effect on the wet desulfurization process.With applying this new ternary desulfurization solution,not only the catalyst Fe-IL can be recycled and reused,but also the product sulfuric acid can be separated directly from the ternary desulfurization system.

关键词: Fe-based ionic liquid, ternary phase diagram, sulfide dioxide, wet flue gas desulfurization

Abstract: Fe-based ionic liquid(Fe-IL) was synthesized by mixing FeCl₃·6H₂O and 1-butyl-3-methylimidazolium chloride [Bmim]Cl in this paper.The phase diagram of a ternary Fe-IL,ethanol and water system was investigated to construct a ternary desulfurization solution for wet flue gas desulfurization.The effects of flow rate and concentration of SO₂,reaction temperature,pH and Fe-IL fraction in aqueous desulfurization solution on the desulfurization efficiency were investigated.The results shows that the best composition of ternary desulfurization solution of Fe-IL,ethanol and water is 1:1.5:3 by volume ratio,and pH should be controlled at 2.0.Under such conditions,a desulfurization rate greater than 90% could be obtained.The product of sulfuric acid had inhibition effect on the wet desulfurization process.With applying this new ternary desulfurization solution,not only the catalyst Fe-IL can be recycled and reused,but also the product sulfuric acid can be separated directly from the ternary desulfurization system.

Key words: Fe-based ionic liquid, ternary phase diagram, sulfide dioxide, wet flue gas desulfurization

中图分类号:

X701.3

解美莹, 李沛沛, 郭惠锋, 高丽霞, 余江. Ternary System of Fe-based Ionic Liquid, Ethanol and Water for Wet Flue Gas Desulfurization[J]. Chinese Journal of Chemical Engineering, 2012, 20(1): 140-145.

XIE Meiying, LI Peipei, GUO Huifeng, GAO Lixia, YU Jiang. Ternary System of Fe-based Ionic Liquid, Ethanol and Water for Wet Flue Gas Desulfurization[J]. Chin.J.Chem.Eng., 2012, 20(1): 140-145.

参考文献

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Ternary System of Fe-based Ionic Liquid, Ethanol and Water for Wet Flue Gas Desulfurization

Ternary System of Fe-based Ionic Liquid, Ethanol and Water for Wet Flue Gas Desulfurization

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