CFD Simulation of Flow and Mass Transfer in Structured Packing Distillation Columns

陈江波; 刘春江; 袁希钢; 余国琮

doi:10.1016/S1004-9541(08)60220-7

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CFD Simulation of Flow and Mass Transfer in Structured Packing Distillation Columns

催化、动力学与反应工程 | Updated：2026-01-06

- CFD Simulation of Flow and Mass Transfer in Structured Packing Distillation Columns
- Chinese Journal of Chemical Engineering Vol. 17, Issue 3, Pages: 381-388(2009)
- Affiliations：
  
  State Key Laboratory for Chemical Engineering (Tianjin University), Chemical Engineering Research Center and School of Chemical Engineering and Technology, Tianjin University,Tianjin,China,300072
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(08)60220-7
  CLC：
- Published：2009
- Accepted：
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CHEN Jiangbo, LIU Chunjiang, YUAN Xigang, YU Guocong. CFD Simulation of Flow and Mass Transfer in Structured Packing Distillation Columns[J]. Chin.J.Chem.Eng., 2009, 17(3): 381-388.
DOI：

CHEN Jiangbo, LIU Chunjiang, YUAN Xigang, YU Guocong. CFD Simulation of Flow and Mass Transfer in Structured Packing Distillation Columns[J]. Chin.J.Chem.Eng., 2009, 17(3): 381-388. DOI： 10.1016/S1004-9541(08)60220-7.

摘要

Abstract

Detailed investigation of flow behavior in structured packing distillation columns is of great importance in accurate prediction of process efficiency and development of more efficient and optimal equipment internals. In this study

a three-dimensional two-phase flow model based on VOF method for simulating the hydrodynamics and mass-transfer behavior in a typical representative unit of the structured packing is developed. In the proposed model

the c

-ε

model is used for the closure of turbulent mass transfer equation. By solving the proposed model

the velocity distribution

phase fraction profile and concentration field are obtained. Using these data

the total liquid holdup

the wetted area and the separation efficiency [height equivalent to a theoretical plate (HETP)

]

are estimated. For testing the model validation

the simulated HETPs are compared with our previous experimental data obtained in a 150 mm-diameter column containing Mellapak 350Y operating at the pressures of 0.6-1.8 MPa. The comparison shows that they are in satisfactory agreement

with an average absolute deviation (AAD) of 25.4%.

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