Introduction of Point Efficiency into Unsteady-State Distillation Calculation.
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- Tachibana Hiroshi
- Dept. of Ind. Chem., Tokyo Metropolitan Univ.
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- Hirose Yasuo
- Dept. of Ind. Chem., Tokyo Metropolitan Univ.
Bibliographic Information
- Other Title
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- 非定常蒸留計算への点効率の導入法
- ヒテイジョウ ジョウリュウ ケイサン エ ノ テン コウリツ ノ ドウニュウホ
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Abstract
Many distillation calculation methods at the steady state incorporaing various kind of point efficiencies have been developed for obtaining the actual distillation column composition profile, but a calculation method at the unsteady state incorporating the point efficiency for calculating the time dependence of the column profile from start-up to the steady state has not yet been reported. Here, a method to introduce point efficiencies into the unsteady state distillation calculation is proposed. The principle is as follows : the vapor compositions are eliminated from the derivatives by using the definition equation of point efficiency, so that numerical integration can be carried out with a function of only the liquid compositions. The efficiencies tested are the Murphree vapor, the Murphree liquid and the Hausen efficiencies. Generally speaking, the time required to reach the steady state increases with efficiency increasing. This method is also applicable to the Relaxation method.
Journal
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- KAGAKU KOGAKU RONBUNSHU
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KAGAKU KOGAKU RONBUNSHU 22 (2), 396-399, 1996
The Society of Chemical Engineers, Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390282679486589056
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- NII Article ID
- 10002668508
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- NII Book ID
- AN00037234
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- ISSN
- 13499203
- 0386216X
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- NDL BIB ID
- 3937003
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed