| 甲酸乙酯和乙醇汽液相平衡的估算 |
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| 引用本文： | 张士旭,胡丹云,房颖.甲酸乙酯和乙醇汽液相平衡的估算[J].山东理工大学学报,2006,20(1):88-91. |
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| 作者姓名： | 张士旭 胡丹云 房颖 |
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| 作者单位： | 华东理工大学化工学院 上海200237(张士旭，胡丹云)，山东理工大学外语学院 山东淄博255049(房颖) |
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| 摘 要： | 用修正的UNIFAC模型对常压下甲酸乙酯和乙醇的汽液平衡进行估算,得到理论共沸组成为0.935(甲酸乙酯摩尔分数).与UNIFAC模型计算结果相比,修正的UNIFAC模型更接近实验值.常压下甲酸乙酯和乙醇存在共沸点,共沸温度为327.38K,不能用普通精馏进行分离.
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| 关 键 词： | 甲酸乙酯 乙醇 修正UNIFAC模型 汽液平衡 |
| 文章编号： | 1672-6197(2006)01-0088-04 |
| 收稿时间： | 04 18 2005 12:00AM |
| 修稿时间： | 2005年4月18日 |
Prediction of vapor-liquid equilibria for ethyl formate and ethanol system |
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| ZHANG Shi-xu,HU Dan-yun,FANG Ying.Prediction of vapor-liquid equilibria for ethyl formate and ethanol system[J].Journal of Shandong University of Technology:Science and Technology,2006,20(1):88-91. |
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| Authors: | ZHANG Shi-xu HU Dan-yun FANG Ying |
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| Institution: | 1. College of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China; 2. School of Foreign Languages, Shandong University of Technology, Zibo 255049, China |
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| Abstract: | The equilibria for ethyl formate and ethanol system at atmosphere were predicted by modified UNIFAC model.The calculation results showed that the mole fraction of ethyl formate at boiling point azeotrope is 0.935.Compared with the results from UNIFAC model,the modified UNIFAC model is more accurate for calculation.It was convinced that normal distillation was not an ideal method for the separation of ethyl formate and ethanol because of azeotrope. |
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| Keywords: | ethyl formate ethanol modified UNIFAC model vapor-liquid equilibrium |
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