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Gas–liquid flow modeling in columns equipped with structured packing
Author(s) -
Soulaine Cyprien,
Horgue Pierre,
Franc Jacques,
Quintard Michel
Publication year - 2014
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.14550
Subject(s) - structured packing , porous medium , mechanics , flow (mathematics) , liquid flow , capillary action , dispersion (optics) , distillation , materials science , column (typography) , porosity , geometry , engineering , mechanical engineering , chemistry , chromatography , mass transfer , physics , optics , composite material , mathematics , connection (principal bundle)
The modeling of gas–liquid flow in distillation columns equipped with structured packing has been dealt. The devices are seen as bistructured porous media, and a macroscale model is proposed taking into account this specific geometry. In this model, the two liquid films, one‐per‐sheet, are treated separately and are allowed to exchange matter at the vicinity of the contact points between corrugated sheets. The model emphasizes mechanisms that lead to the liquid radial dispersion effects: a main part comes from the geometry itself, another part is due to the capillary effects. A particular attention is paid to model these phenomena from a macroscale point of view. Finally, the simulation results are confronted to tomography imaging within a lab‐scale column and show a qualitative good agreement of the liquid distribution. © 2014 American Institute of Chemical Engineers AIChE J , 60: 3665–3674, 2014