Absorption performance of CO2 in amino-functionalized task-specific ionic liquids

doi:10.11949/j.issn.0438-1157.20160729

CIESC Journal ›› 2016, Vol. 67 ›› Issue (12): 5057-5065.DOI: 10.11949/j.issn.0438-1157.20160729

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Absorption performance of CO₂ in amino-functionalized task-specific ionic liquids

ZHANG Hui^1,2, ZHANG Hongmei², SHEN Jinyou², WANG Lianjun²

1 Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology(CICAEET), Jiangsu Key Laboratory of Atmospheric Environment Monitoring & Pollution Control, Nanjing University of Information Science & Technology, Nanjing 210044, Jiangsu, China;
2 School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China

Received:2016-05-27 Revised:2016-10-08 Online:2016-12-05 Published:2016-12-05
Supported by:
supported by the Natural Science Foundation of Jiangsu Education Department(12KJB610003) and the Industrialization Project of Jiangsu Education Department(JH09-10).

氨基功能型离子液体吸收CO₂的性能

张慧^1,2, 张红梅², 沈锦优², 王连军²

1 南京信息工程大学江苏省大气环境与装备技术协同创新中心, 江苏省大气环境监测与污染控制高技术研究重点实验室, 江苏南京 210044;
2 南京理工大学环境与生物工程学院, 江苏南京 210094

通讯作者: 张慧(1977-),女,博士研究生,讲师。zhanghui13401@163.com
基金资助:
江苏省高校自科研究项目（12KJB610003）；江苏省教育厅成果产业化项目（JH09-10）。

Abstract

Abstract:

Amino-functionalized task-specific ionic liquids are thought to have good application prospects in terms of CO₂ fixation and separation, due to their strong CO₂ absorption with selectivity under ambient conditions. In this study, four task-specific ionic liquids were synthesized, with their structures and properties characterized by IR, ¹H NMR. The performances of these four task-specific ionic liquids in terms of CO₂ absorption and regeneration were investigated. It was found that these four task-specific ionic liquids are supervisor to traditional ionic liquids in terms of CO₂ absorption. In addition, these four task-specific ionic liquids showed excellent regeneration performance, which indicated that they could be reused for CO₂ absorption. The solubility of CO₂ in ionic liquids was affected significantly by the viscosity, decreased by increasing the temperature, increased by increasing the pressure and absorbent concentration. Enhanced mass transfer can improve the regeneration efficiency. However, no significant effect on the absorption properties of ionic liquids was observed after multiple regenerations.

Key words: task-specific ionic liquids, amino functionalization, preparation, absorption, regeneration

摘要：

氨基功能型离子液体在常温常压下对CO₂具有较强的吸收选择性能，在分离固定CO₂方面具有较好的应用前景。合成了4种氨基功能型离子液体，对产物进行了IR和¹H NMR表征，探究了这些功能型离子液体的CO₂吸收性能及再生性能。结果表明，4种氨基功能型离子液体均具有强于常规型离子液体的CO₂吸收性能，再生性能良好，可循环使用；离子液体的CO₂溶解度受黏度影响显著，随吸收温度的升高而降低，随吸收压力的升高，吸收剂浓度的增加而增大；强化传质能提高再生效率，多次的再生对离子液体的吸收性能没有明显影响。

关键词: 功能型离子液体, 氨基功能化, 制备, 吸收, 再生

CLC Number:

X511

ZHANG Hui, ZHANG Hongmei, SHEN Jinyou, WANG Lianjun. Absorption performance of CO₂ in amino-functionalized task-specific ionic liquids[J]. CIESC Journal, 2016, 67(12): 5057-5065.

张慧, 张红梅, 沈锦优, 王连军. 氨基功能型离子液体吸收CO₂的性能[J]. 化工学报, 2016, 67(12): 5057-5065.

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Absorption performance of CO₂ in amino-functionalized task-specific ionic liquids

氨基功能型离子液体吸收CO₂的性能

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