Prediction of Vapor-Liquid Equilibria of Alcohol-Hydrocarbon Systems by 1H NMR and Azeotropic Point

摘要/Abstract

摘要： With the energy parameters obtained from ¹H nuclear magnetic resonance(NMR)chemical shifts data by local composition model and coupled with azeotropic point,the low-pressure vapor-liquid equilibrium is satisfactorily predicted for alcohol+hexane,alcohol+cyclohexane,and alcohol+benzene binary systems at different temperatures.The relationship between the spectroscopic information and thermodynamic property is presented.

关键词: vapor-liquid equilibrium, ¹H nuclear magnetic resonance, azeotropic point, local composition, alcohol-hydrocarbon system

Abstract: With the energy parameters obtained from ¹H nuclear magnetic resonance(NMR)chemical shifts data by local composition model and coupled with azeotropic point,the low-pressure vapor-liquid equilibrium is satisfactorily predicted for alcohol+hexane,alcohol+cyclohexane,and alcohol+benzene binary systems at different temperatures.The relationship between the spectroscopic information and thermodynamic property is presented.

Key words: vapor-liquid equilibrium, ¹H nuclear magnetic resonance, azeotropic point, local composition, alcohol-hydrocarbon system

许映杰, 姚加, 姚萍, 李浩然, 韩世钧. Prediction of Vapor-Liquid Equilibria of Alcohol-Hydrocarbon Systems by ¹H NMR and Azeotropic Point[J]. , 2010, 18(3): 455-461.

XU Yingjie, YAO Jia, YAO Ping, LI Haoran, HAN Shijun. Prediction of Vapor-Liquid Equilibria of Alcohol-Hydrocarbon Systems by ¹H NMR and Azeotropic Point[J]. , 2010, 18(3): 455-461.

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Prediction of Vapor-Liquid Equilibria of Alcohol-Hydrocarbon Systems by ¹H NMR and Azeotropic Point

Prediction of Vapor-Liquid Equilibria of Alcohol-Hydrocarbon Systems by ¹H NMR and Azeotropic Point

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