Isobaric Vapor-Liquid Equilibrium for Water+ Acetic acid+ P-xylene+ Methyl acetate+ Isobutyl acetate
碩士 === 國立中央大學 === 化學工程與材料工程研究所 === 96 === Acetic acid and water is a mixture with close-boiling temperature. Therefore, a conventional distillation can not produce high purity acetic acid. In this work use packed distillation column to find the ternary azeotropic of water-acetic acid-p-xylene. The...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2008
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| Online Access: | http://ndltd.ncl.edu.tw/handle/84522107843184468602 |
| Summary: | 碩士 === 國立中央大學 === 化學工程與材料工程研究所 === 96 === Acetic acid and water is a mixture with close-boiling temperature. Therefore, a conventional distillation can not produce high purity acetic acid.
In this work use packed distillation column to find the ternary azeotropic of water-acetic acid-p-xylene. The ternary azeotropic doesn''t exist in this work result.
In this work, the vapor liquid equilibrium and vapor liquid liquid equilibrium data of water-acetic acid-p-xylene were conducted in a modified Othmer type equilibrium still at 101.32 kPa. The measured VLE and VLLE data were correlated by the activity coefficient models of UNIQUAC and NRTL with the consideration of the association by Hayden and O’Connell in the vapor phase. Our calculated results show that the correlation by the UNIQUAC model was in good agreement with the experimental data for VLE and VLLE.
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