Research on Thermodynamic Properties of Binary Mixture of Ethylene Glycol and Ethylene Glycol Diacetate
1. College of Petrochemical Engineering, Changzhou University, Changzhou 213164, China;
2. State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Shanghai Research Institute of Petrochemical Technology, SINOPEC, Shanghai 201208, China
Abstract：The saturated vapor pressure of pure components of ethylene glycol (EG) and ethylene glycol diacetate (EGDA) and the vapor-liquid equilibrium (VLE) data of the binary mixture composed of EG and EGDA were measured using a self-made vacuum VLE device. The saturated vapor pressure and binary VLE experimental results were fitted by means of Antoine equation and Non-Random Two Liquids (NRTL) thermodynamic model respectively, and new binary interaction parameters were obtained. Furthermore, the density and surface tension of EG/EGDA binary mixture were measured at atmospheric pressure and temperature of 313.15-333.15 K, and the molar volume, excess molar volume and surface thermodynamic properties of the binary mixture system were further calculated. The experimental data and calculated results in this paper can provide basic physical data for the design and optimization of ethylene glycol esterification process.
WANG Fang1,WEN Wei1,YAN Linying1 et al. Research on Thermodynamic Properties of Binary Mixture of Ethylene Glycol and Ethylene Glycol Diacetate[J]. 化学反应工程与工艺, 2021, 37(1): 39-46.
