| 立方型+缔合状态方程模拟离子液体的pVT性质和汽液平衡(英文) |
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| 引用本文： | 马俊,李进龙,范冬福,彭昌军,刘洪来,胡英.立方型+缔合状态方程模拟离子液体的pVT性质和汽液平衡(英文)[J].中国化学工程学报,2011,19(6):1009-1016. |
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| 作者姓名： | 马俊 李进龙 范冬福 彭昌军 刘洪来 胡英 |
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| 作者单位： | State Key Laboratory of Chemical Engineering and Department of Chemistry, East China University of Science and Technology, Shanghai 200237, China |
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| 基金项目： | Supported by the National Natural Science Foundation of China (20876041, 20736002); the National Basic Research Program of China (2009CB219902); the Program for Changjiang Scholars and Innovative Research Team in University of China(Grant IRT0721); the Programme of Introducing Talents of Discipline to Universities (Grant B08021) of China |
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| 摘 要： | Combining Peng-Robinson (PR) equation of state (EoS) with an association model derived from shield-sticky method (SSM) by Liu et al., a new cubic-plus-association (CPA) EoS is proposed to describe the ther-modynamic properties of pure ionic liquids (ILs) and their mixtures. The new molecular parameters for 25 ILs are obtained by fitting the experimental density data over a wide temperature and pressure range, and the overall aver-age deviation is 0.22%. The model parameter b for homologous ILs shows a good linear relationship with their mo-lecular mass, so the number of model parameters is reduced effectively. Using one temperature-independent binary adjustable parameter kij, satisfactory correlations of vapor-liquid equilibria (VLE) for binary mixtures of ILs + non-associating solvents and + associating solvents are obtained with the overall average deviation of vapor pressure 2.91% and 7.01%, respectively. In addition, VLE results for ILs + non-associating mixtures from CPA, lattice-fluid (LF) and square-well chain fluids with variable range (SWCF-VR) EoSs are compared.
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| 关 键 词： | 离子液体 汽液平衡 关联模型 状态方程 性能建模 二元混合物 流体混合物 模型参数 |
| 收稿时间： | 2011-02-25 |
Modeling pVT Properties and Vapor-Liquid Equilibrium of Ionic Liquids Using Cubic-plus-association Equation of State |
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| MA Jun,LI Jinlong,FAN Dongfu,PENG Changjun,LIU Honglai , HU Ying State Key Laboratory of Chemical Engineering.Modeling pVT Properties and Vapor-Liquid Equilibrium of Ionic Liquids Using Cubic-plus-association Equation of State[J].Chinese Journal of Chemical Engineering,2011,19(6):1009-1016. |
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| Authors: | MA Jun LI Jinlong FAN Dongfu PENG Changjun LIU Honglai HU Ying State Key Laboratory of Chemical Engineering |
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| Affiliation: | State Key Laboratory of Chemical Engineering and Department of Chemistry, East China University of Science and Technology, Shanghai 200237, China |
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| Abstract: | Combining Peng-Robinson (PR) equation of state (EoS) with an association model derived from shield-sticky method (SSM) by Liu et al., a new cubic-plus-association (CPA) EoS is proposed to describe the ther-modynamic properties of pure ionic liquids (ILs) and their mixtures. The new molecular parameters for 25 ILs are obtained by fitting the experimental density data over a wide temperature and pressure range, and the overall aver-age deviation is 0.22%. The model parameter b for homologous ILs shows a good ... |
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| Keywords: | cubic-plus-association equation of state ionic liquids vapor-liquid equilibrium |
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