文献类型：期刊文献

英文题名：Vapor-liquid equilibria in the propyl acetate + ethanoic acid binary system from (323.15 to 353.15) K: Measurement with a static method and modeling with the NRTL, Wilson, UNIQUAC, and COSMO-SAC approaches

作者：Fan, Dongfu[1]; Li, Jinlong[1,2]; Shi, Jibin[1]; Peng, Changjun[1]; Liu, Honglai[1]; Hu, Ying[1]; Paricaud, Patrice[2]

机构：[1] State Key Laboratory of Chemical Engineering, Department of Chemistry, East China University of Science and Technology, Shanghai 200237, China; [2] Laboratoire de Chimie et Procédés, ENSTA-ParisTech, 32 Boulevard Victor, 75739 Paris Cedex 15, France

年份：2011

卷号：56

期号：4

起止页码：1323

外文期刊名：Journal of Chemical and Engineering Data

收录：EI(收录号：20111613928464)

语种：英文

外文关键词：Liquids - Binary mixtures - Equations of state of liquids - Systems (metallurgical)

摘要：A static total pressure method was employed to determine the vapor pressures of pure propyl ethanoate (propyl acetate), pure ethanoic acid, and the corresponding propyl acetate + ethanoic acid binary system at different feeding compositions over the temperature range (323.15 to 353.15) K. The isothermal vapor-liquid equilibrium (VLE) data of the binary mixture at various temperatures were obtained from classical thermodynamic relations and mass-balance equations. The nonrandom two-liquid (NRTL), Wilson, and universal quasi-chemical (UNIQUAC) models were used to represent the nonideality of the liquid phase, and a modified Peng-Robinson equation of state was used to compute the properties of the vapor phase. The overall average relative deviations between the experimental equilibrium pressures and the NRTL, Wilson, and UNIQUAC models were (0.95, 0.96, and 0.94) %, respectively. The three models gave about the same equilibrium pressures and vapor compositions. A new version of the conductor-like screening model-segment activity coefficient (COSMO-SAC) model was applied to predict the VLE of propyl acetate + ethanoic acid mixtures, and good agreement with the experimental data was obtained. ? 2011 American Chemical Society.