| 乙烯-甲苯等温汽液平衡数据的测定 |
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| 引用本文： | 何伟,郑丹星,武向红,朱彩凤,荆树宏.乙烯-甲苯等温汽液平衡数据的测定[J].石油化工,2007,36(4):362-365. |
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| 作者姓名： | 何伟 郑丹星 武向红 朱彩凤 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： | 自行设计了高压汽液平衡数据的测定装置,实现汽液两相在线气相色谱分析。在压力0.305～2.036MPa、温度303.15,333.15,363.15K的条件下,测定了乙烯-甲苯二组分物系的汽液平衡数据。汽液平衡数据满足热力学一致性检验。由实验数据对乙烯-甲苯二组分物系的汽相采用Peng-Robinson方程、液相采用NRTL方程进行关联,得到NRTL方程的二元交互作用参数。乙烯-甲苯二组分物系的汽液平衡数据的计算值与实验值的平均偏差为3.14%,最大偏差为10.68%。
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| 关 键 词： | 乙烯-甲苯二组分物系 汽液平衡 状态方程 |
| 文章编号： | 1000-8144(2007)04-0362-04 |
| 修稿时间： | 2006年12月1日 |
Isothermal Vapor-Liquid Equilibrium Data of Ethylene-Toluene Binary System |
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| He Wei,Zheng Danxing,Wu Xianghong,Zhu Caifeng,Jing Shuhong.Isothermal Vapor-Liquid Equilibrium Data of Ethylene-Toluene Binary System[J].Petrochemical Technology,2007,36(4):362-365. |
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| Authors: | He Wei Zheng Danxing Wu Xianghong Zhu Caifeng Jing Shuhong |
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| Abstract: | Isothermal vapor-liquid equilibrium(VLE) data of ethylene-toluene binary system under high-pressure were measured by a self-made apparatus.The vapor and liquid samples could be analyzed online by means of gas chromatography.The VLE data of the binary system were determined under 0.305-2.036 MPa at 303.15,333.15 and 363.15 K.The VLE data can meet demand of thermodynamic consistency test. Correlation of experimental data was carried out by means of Peng-Robinson(PR) equation for gas phase and NRTL equation for liquid phase.The average deviation between experimental data and correlated results is 3.14% and the maximum deviation is 10.68%.The VLE data of ethylene-toluene binary system can be calculated by PR-NRTL equation. |
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| Keywords: | ethylene-toluene binary system vapor-liquid equilibrium state equation |
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