石油化工2012，Vol.41Issue(2)：172-176,5.
碳五与二甲基甲酰胺+离子液体二组分物系汽液平衡数据的测定与关联
Measurement and Correlation of Vapor-Liquid Equilibrium Data of C5 Fraction and Dimethylformamide Containing Ionic Liquids
刘智信 1李东风1
作者信息
- 1. 中国石化北京化工研究院,北京100013
- 折叠
摘要
Abstract
The effects of ionic liquids on relative volatility of 1-pentene-isoprene system were investigated by experiment. At pressure of 101.3 kPa, vapor-liquid equilibrium data of isoprene, 1-pentene, 2-methyl-l-butene or cyclopentene and DMF+l-hexyl-3-methylimidazolium hexafluorophosphate ([hmim]PF6) four binary systems were measured, and were correlated by NRTL equation. The experimental results showed that the effect of [hmim]PF6 on the relative volatility was the strongest and its suitable concentration was 4%. All the experiment results accorded with the thermodynamic consistency test. By comparing the correlated results with the experimental data, the maximal deviations of both the bubble point temperature and the vapor composition were 1.59℃ and 0.016 4, respectively. The obtained parameters of NRTL models could meet the demand of current engineering design.关键词
碳五分离/二甲基甲酰胺/离子液体/汽液平衡Key words
C5 seperation/ dimethylformamide/ ionic liquid/ vapor-liquid equilibrium分类
化学化工引用本文复制引用
刘智信,李东风..碳五与二甲基甲酰胺+离子液体二组分物系汽液平衡数据的测定与关联[J].石油化工,2012,41(2):172-176,5.
