Analytical solution to an axial dispersion model for the fixed-bed adsorber

Citation
Ht. Liao et Cy. Shiau, Analytical solution to an axial dispersion model for the fixed-bed adsorber, AICHE J, 46(6), 2000, pp. 1168-1176
Citations number
23
Categorie Soggetti
Chemical Engineering
Journal title
AICHE JOURNAL
ISSN journal
00011541 → ACNP
Volume
46
Issue
6
Year of publication
2000
Pages
1168 - 1176
Database
ISI
SICI code
0001-1541(200006)46:6<1168:ASTAAD>2.0.ZU;2-E
Abstract
An axial dispersion model for the operation of a fixed-bed adsorber with a linear adsorption isotherm was formulated and solved analytically using the separation of variables method. The asymptotic solution for a large Peclet number and/or a small operation time was also obtained using two limiting cases. The results can be used to correlate or to predict both the mass-tra nsfer zones and the breakthrough curves of a fixed-bed adsorber. Influence of both the Peclet number and the retardation coefficient on the operation of a fired-bed adsorber was also studied As an example, the axial dispersio n model was applied to the experimental data of the removal of phenol from the solution in the activated carbon and the Amberlite resin XAD-4 fixed-be d adsorbers.