CIESC Journal ›› 2016, Vol. 67 ›› Issue (2): 623-626.DOI: 10.11949/j.issn.0438-1157.20151217

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Synthesis of cinnamic acid-based ionic liquids and application in CO2 absorption

CHEN Kaihong1, MEI Ke1, LI Haoran1,2, WANG Congmin1,3   

  1. 1 Department of Chemistry, Zhejiang University, Hangzhou 310027, Zhejiang, China;
    2 State Key Laboratory of Chemical Engineering, Zhejiang University, Hangzhou 310027, Zhejiang, China;
    3 Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Zhejiang University, Hangzhou 310027, Zhejiang, China
  • Received:2015-07-29 Revised:2015-11-04 Online:2016-02-05 Published:2016-02-05
  • Supported by:

    supported by the National Basic Research Program of China (2015CB251401) and the National Natural Science Foundation of China (21322602, 21176205).

肉桂酸型离子液体的合成及其二氧化碳吸收

陈凯宏1, 梅柯1, 李浩然1,2, 王从敏1,3   

  1. 1 浙江大学化学系, 浙江 杭州 310027;
    2 化学工程联合国家重点实验室(浙江大学), 浙江 杭州 310027;
    3 生物质化工教育部重点实验室(浙江大学), 浙江 杭州 310027
  • 通讯作者: 王从敏
  • 基金资助:

    国家重点基础研究发展计划项目(2015CB251401);国家自然科学基金项目(21322602,21176205)。

Abstract:

A series of cinnamic acid-based ionic liquids [P66614][CIN] were prepared and applied in the CO2 absorption. The results showed that the cinnamic acid-based ionic liquids exhibited good CO2 absorption performance. The CO2 absorption ability was influenced by the substituent in the cinnamic acid. The CO2 absorption capacity would decrease with increasing temperature or decreasing pressure. Furthermore, these ionic liquids exhibited excellent reversibility since higher CO2 absorption capacity can be maintained after 5 times of absorption/desorption circulation. The results of a combination of FT-IR spectrum and CO2 absorption under 10% CO2 indicated that CO2 was absorbed by chemisorption.

Key words: ionic liquids, carbon dioxide, cinnamic acid, absorption, functionalized

摘要:

合成了一系列肉桂酸型功能化离子液体,研究了其CO2 吸收性能。结果表明,肉桂酸型功能化离子液体吸收二氧化碳性能良好,其阴离子苯环上的取代基会影响CO2 吸收性能。随着温度的升高和压力的降低,其CO2吸收性能都会降低。同时,该离子液体具有很好的循环稳定性,经过5 次吸收脱附循环,该离子液体仍能保持较高的CO2 吸收量。结合红外光谱和其低浓度下CO2 的吸收研究发现肉桂酸型离子液体吸收CO2 存在着化学作用。

关键词: 离子液体, 二氧化碳, 肉桂酸, 吸收, 功能化

CLC Number: