Measurement and prediction on vapor-liquid equilibrium for carbon dioxide-dimethyl ether-methanol-water quaternary system

被引：0
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作者：
Song, Huai-Jun
Zhang, Hai-Tao
Ying, Wei-Yong
Fang, Ding-Ye
机构：
[1] State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
[2] School of Chemical Engineering, Zhengzhou University, Zhengzhou 450002, China
来源：
Huadong Ligong Daxue Xuebao /Journal of East China University of Science and Technology | 2007年 / 33卷 / 03期
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摘要：
The isothermal vapor-liquid equilibrium data for carbon dioxide-dimethyl ether-methanol-water quaternary system were measured at 298.15, 313.15, 333.15, 353.15 K in a self-sucking type agited static equilibrium cell. The pressure of cell was recorded using an on-line computer and acquisition system. The composition of vapor phase and liquid phase were analysed using gas chromatography. Thermodynamic calculation of vapor-liquid equilibrium data for carbon dioxide-dimethyl ether-methanol-water quaternary system were carried out using method based on equation of state-activity coefficient, PR equation for fugacity coefficient of gas phase and NRTL equation for activity coefficient of liquid phase. The calculated data fit the experimental data well.
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页码：301 / 305
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