| 溶碱萃取剂对乙醇-水体系汽液平衡的影响 |
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| 引用本文： | 林军,顾正桂. 溶碱萃取剂对乙醇-水体系汽液平衡的影响[J]. 南京师范大学学报, 2003, 3(4): 11-14 |
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| 作者姓名： | 林军 顾正桂 |
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| 作者单位： | 林军（南京师范大学化学与环境科学学院,210097,南京） 顾正桂（南京师范大学化学与环境科学学院,210097,南京） |
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| 摘 要： | 提出了溶碱萃取精馏制取无水乙醇的方法．通过恒沸点相对挥发度的测定与全浓度下的汽液平衡测定，考察了溶碱萃取剂对乙醇一水体系汽液平衡的影响．采用LIQUAC模型与Wilson模型相结合的关联计算方法，进行了汽液平衡数据的预测与萃取精馏工艺条件的模拟．结果表明，与传统的溶盐萃取剂相比，溶碱萃取剂可以更好地提高乙醇-水体系的分离效果．
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| 关 键 词： | 汽液平衡 萃取精馏 关联计算 |
| 文章编号： | 1672-1292-(2003)04-0011-04 |
| 修稿时间： | 2003-06-23 |
Effect of Alkali Extraction Solvent on Vapor-Liguid Equilibrium of Ethanol-Water System |
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| Lin Jun,Gu Zhenggui. Effect of Alkali Extraction Solvent on Vapor-Liguid Equilibrium of Ethanol-Water System[J]. Journal of Nanjing Nor Univ: Eng and Technol, 2003, 3(4): 11-14 |
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| Authors: | Lin Jun Gu Zhenggui |
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| Abstract: | An extrative rectification with alkali for absolute ethanol production was suggested. The effect of alkali extraction solvent on vapor liguid equilibrium of ethanol water system was studied by determinations of relative volatility at azotropic point and vapor liquid equilibrium under total concentration. Prediction on vapor liquid equlibrium and simulation of process prameters for extraction rectification were made using interactive calculation method by combination of LIQUAC and Wilson Models. The results shows that the separation of ethanol water system is better by ertraction agent with alkali than by traditional extractive rectification with salt solvent. |
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| Keywords: | extractive rectification VLE ethanol interactive calculation |
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