肉桂酸型离子液体的合成及其二氧化碳吸收

发布时间：2018-03-13 12:34

本文选题：离子液体　切入点：二氧化碳　出处：《化工学报》2016年02期 　论文类型：期刊论文

【摘要】：合成了一系列肉桂酸型功能化离子液体,研究了其CO_2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CO_2吸收性能。随着温度的升高和压力的降低,其CO_2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CO_2吸收量。结合红外光谱和其低浓度下CO_2的吸收研究发现肉桂酸型离子液体吸收CO_2存在着化学作用。
[Abstract]:A series of cinnamic acid functionalized ionic liquids were synthesized and their CO_2 absorption properties were studied. The results showed that the cinnamic acid functionalized ionic liquids had good carbon dioxide absorption. The substituent on the anionic benzene ring will affect the absorption of CO_2. With the increase of temperature and the decrease of pressure, the absorption of CO_2 will decrease. At the same time, the ionic liquid has a good cycle stability, after 5 times of absorption and desorption cycle, This ionic liquid can still maintain a high CO_2 absorption capacity. Combined with infrared spectroscopy and CO_2 absorption at low concentration, it is found that the cinnamic acid ionic liquid absorbs CO_2 chemically.
【作者单位】：浙江大学化学系;化学工程联合国家重点实验室(浙江大学);生物质化工教育部重点实验室(浙江大学);
【基金】：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)~~
【分类号】：X511;TQ028

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