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Effect of fluid properties on dispersion in flow through packed beds
Author(s) -
de Carvalho J. R. F. Guedes,
Delgado J. M. P. Q.
Publication year - 2003
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.690490808
Subject(s) - dispersion (optics) , packed bed , chemistry , flow (mathematics) , analytical chemistry (journal) , liquid flow , thermodynamics , range (aeronautics) , mechanics , mathematics , materials science , chromatography , physics , composite material , optics
An experimental study is described on the effect of liquid properties on axial dispersion in packed beds. Working with water between 278 and 373 K, the range 57600). A representation of Pe L vs. Pe m reveals the existence of a very flat minimum (typically 10 2 700, but it increases significantly with a decrease in Sc, for Sc<700. The experimental data used to test available correlations for predicting D L show that they are inaccurate over considerable ranges of the variables.