| 高压下CO_2-乙醇二元系统的气液平衡 |
| |
| 引用本文： | 田宜灵,韩铭,陈丽,冯季军,秦颖.高压下CO_2-乙醇二元系统的气液平衡[J].物理化学学报,2001,17(2). |
| |
| 作者姓名： | 田宜灵 韩铭 陈丽 冯季军 秦颖 |
| |
| 作者单位： | 天津大学化学系, |
| |
| 摘 要： | 在带有可视石英窗的可变体积高压釜内 ,在 60－ 180℃温度范围、 4.0－ 14.5 MPa压力范围下测定了 CO2和乙醇二元系统的相平衡数据 .根据实验结果预测了 pc,Tc,xc.用 Peng-Robinson方程和 Wong-Sandler混合规则进行了拟合 ,所得结果与实验数据基本相符 .
|
| 关 键 词： | 高压相平衡 CO_2 乙醇 Peng-Robinson状态方程 |
Study on Vapor-Liquid Phase Equilibria for CO2-C2H5OH System |
| |
| TIAN Yi-ling,Han Ming,Chen Li,Feng Ji-Jun,Qin Ying.Study on Vapor-Liquid Phase Equilibria for CO2-C2H5OH System[J].Acta Physico-Chimica Sinica,2001,17(2). |
| |
| Authors: | TIAN Yi-ling Han Ming Chen Li Feng Ji-Jun Qin Ying |
| |
| Abstract: | The vapor-liquid phase equilibria of the binary system of CO2-C2H5OH were measured for four isotherms between 60 ℃ and 180 ℃ under the pressure range of 5.0 MPa to 14.5 MPa.The measurements were carried out in a cylindrical autoclave with a moveable piston and a window allowing observation. The compositions,densities and molar volumes of the two coexisting phases are presented. The critical values Tc.pc,xc were predicted.We have correlated phase equilibrium data with the Peng-Robinson equation of state and the Wong-Sandle mixture combination rule for this system.The calculated results agree fairly with the experimental data. |
| |
| Keywords: | High-pressure phase equilibrium Ethanol Carbon dioxide Peng-Robinson equation of state |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
