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Performance of packed columns: Part VIII. Liquid flow patterns and velocities in packed beds
Author(s) -
Shulman H. L.,
Mellish W. G.
Publication year - 1967
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.690130620
Subject(s) - raschig ring , packed bed , laminar flow , flow (mathematics) , mechanics , mixing (physics) , liquid phase , chemistry , liquid flow , materials science , phase (matter) , chromatography , thermodynamics , physics , organic chemistry , quantum mechanics
Abstract To develop a basis for a better understanding of the behavior of the liquid phase in packed columns, liquid velocities and flow patterns were studied at several typical points in a column packed with 1.0‐in. porcelain Raschig rings with a high‐speed photographic technique. Liquid velocities were found to fluctuate rapidly with time. Laminar flow predominates, but mixing occurs at junctions between pieces of packing. A complex model is required to describe the behavior of the liquid phase in packed columns.