| 离子液体对气体的溶解性研究进展 |
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| 引用本文： | 周丹桂,华一新. 离子液体对气体的溶解性研究进展[J]. 化学工业与工程技术, 2009, 30(5): 34-39 |
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| 作者姓名： | 周丹桂 华一新 |
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| 作者单位： | 昆明理工大学,材料与冶金工程学院,云南,昆明,650093 |
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| 摘 要： | 概述了不同离子液体对CO2，O2，SO2，CH4等以及烯烃和烷烃气体的溶解性。文献资料分析表明，气体在离子液体中的溶解性差别很大，离子液体中的阴离子对气体的溶解度影响较大，而阳离子的影响较小。大部分气体在离子液体中的亨利系数随温度的升高而增大。气体在[bmim][PF6]中的溶解度比在[bmim][BF4]中的稍大。低温时[bmim][PF4]离子液体对CO2气体的吸收效果较好；[hmim][Tf2N]离子液体对SO2气体的吸收较好。在将离子液体用于气体吸收时可优先考虑Tf2N^-阴离子和具有较长侧链的眯唑型离子液体。
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| 关 键 词： | 离子液体 气体 溶解 吸收 |
Research progress of solubility for gas in ionic liquid |
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| Zhou Dangui,Hua Yixin. Research progress of solubility for gas in ionic liquid[J]. Journal of Chemical Industry & Engineering, 2009, 30(5): 34-39 |
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| Authors: | Zhou Dangui Hua Yixin |
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| Affiliation: | (Faculty of Materials and Metallurgical Engineering,Kunming University of Science and Technology,Kunming 650093 ,China) |
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| Abstract: | The solubilities of various gases such as CO_2,O_2,SO_2,CH_4,alkenes and alkanes in different ionic liquids are summarized.Which mainly indudes demonstrated that solubilities of different gases in ionic liquids are varied greatly,and the anion of ionic liquids appears to play a significant role in determining the gas solubility,whereas the cation has little effect on the solubility.Henry's coefficients of most gases in ionic liquid are increased with enhancing of temperature.The solubility of various gases in[bmim][PF_6]is larger than that in[bmim][BF_4].The absorption of CO_2 in[bmim][PF_6]ionic liquid is better at low temperatures,and[hmim][Tf_2N]is a good absorber for SO_2.Therefore,Tf_2N~-anion and a longer side-chain imidazole -based ionic liquids may be preferred to the gas absorber. |
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| Keywords: | Ionic liquid Gas Solubility Absorption |
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