Model for Dynamic Liquid Hold-up in a Packed Distillation Column

A correlation for the estimation of the dynamic liquid hold-up in a packed distillation column was developed. It is based on the hydrodynamics of fluid flow in a packed distillation column. The model showed a deviation of less than 3.5% when compared with experimental data. The dynamic liquid hold-u...

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Bibliographic Details
Published inIndustrial & engineering chemistry research Vol. 43; no. 1; pp. 197 - 202
Main Authors Taiwo, Elijah A, Fasesan, Samuel O
Format Journal Article
LanguageEnglish
Published Washington, DC American Chemical Society 07.01.2004
Subjects
Applied sciences
Chemical engineering
Distillation
Exact sciences and technology
Heat and mass transfer. Packings, plates
Hydrodynamics of contact apparatus
Correlation
Flow(fluid)
Liquid holdup
Reynolds number
Hydrodynamics
Distillation column
Modeling
Packed column
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Summary:A correlation for the estimation of the dynamic liquid hold-up in a packed distillation column was developed. It is based on the hydrodynamics of fluid flow in a packed distillation column. The model showed a deviation of less than 3.5% when compared with experimental data. The dynamic liquid hold-up was found to decrease with increasing packed height, and a strong dependence of column performance on the dynamic liquid hold-up was observed. The liquid hold-up was, in general, found to be high at high Reynolds number of the gas phase and low at high relative volatility of the system components.
Bibliography:istex:8BB79CD312C73F11D722F78719AB038E55F575C4
ark:/67375/TPS-C5T8WHTD-Z
ISSN:0888-5885
1520-5045
DOI:10.1021/ie0210199