| N,N-二甲基甲酰胺和乙醇、乙酸乙酯二元物系常压汽液平衡数据的测定 |
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| 引用本文： | 华超,白鹏,李鑫钢,马沛生. N,N-二甲基甲酰胺和乙醇、乙酸乙酯二元物系常压汽液平衡数据的测定[J]. 石油化工, 2005, 34(6): 547-550 |
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| 作者姓名： | 华超 白鹏 李鑫钢 马沛生 |
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| 作者单位： | 1. 天津大学,化工学院,天津,300072
2. 天津大学,化工学院,天津,300072;天津大学,国家精馏技术研究中心,天津,300072 |
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| 摘 要： | 利用气相单循环平衡釜测定了乙醇-N,N-二甲基甲酰胺和乙酸乙酯-N,N-二甲基甲酰胺二元物系的常压(101.3kPa)汽液平衡数据。所测数据通过了Herington法的热力学一致性检验,利用W ilson方程和修正的UN IFAC方程对实验数据进行关联和估算。汽相摩尔分数的实验值和计算值的平均相对偏差均小于0.78%。实验结果表明,乙醇-N,N-二甲基甲酰胺和乙酸乙酯-N,N-二甲基甲酰胺二元物系均不形成共沸物。
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| 关 键 词： | N,N-二甲基甲酰胺 乙醇 乙酸乙酯 汽液平衡 |
| 文章编号： | 1000-8144(2005)06-0547-04 |
| 修稿时间： | 2004-11-19 |
Atmospheric Vapor- Liquid Equilibrium of Ethanol -N,N- Dimethyl Formamide and Ethyl Acetate - N,N - Dimethyl Formamide Systems |
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| HUA Chao,Bai Peng,Li Xingang,Ma Peisheng. Atmospheric Vapor- Liquid Equilibrium of Ethanol -N,N- Dimethyl Formamide and Ethyl Acetate - N,N - Dimethyl Formamide Systems[J]. Petrochemical Technology, 2005, 34(6): 547-550 |
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| Authors: | HUA Chao Bai Peng Li Xingang Ma Peisheng |
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| Affiliation: | Hua Chao~1,Bai Peng~1,Li Xingang~ |
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| Abstract: | Vapor-liquid equilibrium data of ethanol-N,N-dimethyl formamide(DMF)and ethyl acetate-DMF systems were first determined at 101.3kPa.Thermodynamic consistency of the experimental data was confirmed by means of Herington method.Data were then correlated and calculated by Wilson equation and modified UNIFAC equation respectively.Average relative deviations between calculated values and experimental data of gas phase mole fraction were all less than 0.78%.Ethanol-DMF and ethyl acetate-DMF does not form azeotrope. |
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| Keywords: | N N-dimethyl formamide ethanol ethyl acetate vapor-liquid equilibrium |
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