| 高压下CO2异丙醚体系的汽液相平衡 |
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| 引用本文： | 朱彩凤,郑丹星,武向红,何伟,荆树宏.高压下CO2异丙醚体系的汽液相平衡[J].北京化工大学学报(自然科学版),2007,34(4):350-353. |
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| 作者姓名： | 朱彩凤 郑丹星 武向红 何伟 荆树宏 |
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| 作者单位： | 北京化工大学化学工程学院， 北京 100029 |
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| 摘 要： | 采用带有可视石英玻璃窗的高压汽液相平衡装置，测定了压力0.5～25MPa、温度265.15～333.15K条件下CO2异丙醚体系的二元汽液相平衡数据，并通过了热力学一致性检验。用Peng-Robinson(PR)状态方程对CO2-异丙醚体系的汽液相平衡数据进行关联，得到该方程的二元交互作用参数。结果表明，体系的汽液相平衡数据计算值与实验值偏差较小，可采用PR方程对CO2-异丙醚二组分物系的汽液相平衡数据进行预测。
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| 关 键 词： | 汽液平衡 CO2 异丙醚 Peng-Robinson状态方程 热力学一致性检验 汽液平衡 CO2 异丙醚 Peng-Robinson状态方程 热力学一致性检验 |
| 修稿时间： | 2007-01-24 |
High pressure vapor-liquid equilibrium for the carbon dioxide-diisopropyl ether binary system |
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| ZHU CaiFeng,ZHENG DanXing,WU XiangHong,HE Wei,JING ShuHong.High pressure vapor-liquid equilibrium for the carbon dioxide-diisopropyl ether binary system[J].Journal of Beijing University of Chemical Technology,2007,34(4):350-353. |
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| Authors: | ZHU CaiFeng ZHENG DanXing WU XiangHong HE Wei JING ShuHong |
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| Institution: | College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China |
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| Abstract: | An experimental device incorporating vision windows,for measuring vapor-liquid equilibrium(VLE) data at high-pressures is described.Online-sampling of the vapor and liquid phases can be carried out by gas chromatography.The vapor-liquid equilibrium(VLE) data for the binary system carbon dioxide-diisopropyl ether have been measured at 265.15-333.15 K and 0.5-2.5 MPa.The experimental data set passed the thermodynamic consistency test.An isothermal correlation of the experimental data has been carried out based on the Peng-Robinson(PR) equation and the correlated results accord with the experimental data.The results show that the VLE data for the binary system carbon dioxide-diisopropyl ether can be calculated by the PR equation. |
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| Keywords: | vapor-liquid equilibrium carbon dioxide diisopropyl ether Peng-Robinson equation thermodynamic consistency test |
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