| 二氧化碳-二甲醚-甲醇-水四元体系汽液平衡的测定与预测 |
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| 引用本文： | 宋怀俊,张海涛,应卫勇,房鼎业.二氧化碳-二甲醚-甲醇-水四元体系汽液平衡的测定与预测[J].医学教育探索,2007(3):301-305. |
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| 作者姓名： | 宋怀俊 张海涛 应卫勇 房鼎业 |
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| 作者单位： | 华东理工大学化学工程联合国家重点实验室;郑州大学化工学院; |
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| 基金项目： | 国家重点基础研究发展计划项日(2005CB221205) |
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| 摘 要： | 利用自吸式搅拌静态平衡釜,由气相色谱检测汽液相组成,测定298.15、313.15、333.15、353.15 K下二氧化碳-二甲醚-甲醇-水四元体系的等温汽液相平衡数据。采用状态方程-活度系数法,由彭-罗宾逊方程计算气相各组分的逸度系数,有序双液方程计算液相活度系数,进行了二氧化碳-二甲醚-甲醇-水四元体系汽液平衡数据的热力学计算。模型计算值与实验值吻合良好。
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| 关 键 词： | 二甲醚 四元体系 汽液平衡 |
Measurement and Prediction on Vapor-Liquid Equilibrium for Carbon Dioxide-Dimethyl Ether-Methanol-Water Quternary System |
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| SONG Huai-jun,ZHANG Hai-tao,YING Wei-yong,FANG Ding-ye.Measurement and Prediction on Vapor-Liquid Equilibrium for Carbon Dioxide-Dimethyl Ether-Methanol-Water Quternary System[J].Researches in Medical Education,2007(3):301-305. |
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| Authors: | SONG Huai-jun ZHANG Hai-tao YING Wei-yong FANG Ding-ye |
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| Institution: | 1;2;1;1;1;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 |
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| Abstract: | The isothermal vapor-liquid equilibrium data for carbon dioxide-dimethyl ether-methanolwater quter-nary 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 quternary 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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| Keywords: | dimethyl ether quternary system vapor-liquid equilibrium |
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