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Liquid‐phase dispersion in packed beds with two‐phase flow
Author(s) -
Furzer I. A.,
Michell R. W.
Publication year - 1970
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.690160313
Subject(s) - péclet number , raschig ring , mechanics , dispersion (optics) , countercurrent exchange , flow (mathematics) , breakthrough curve , phase (matter) , thermodynamics , diffusion , mathematics , chemistry , materials science , packed bed , chromatography , physics , optics , organic chemistry , adsorption
Liquid‐phase Peclet numbers have been measured for 1/4 in. Raschig rings with countercurrent air flow in a 2 in I.D. column. The response curve has been analyzed by a computer program, since the output data was collected directly on paper tape. The Peclet number calculated from a moments analysis is considered unreliable, and the diffusion model can be rejected for the liquid phase. If the Peclet number is calculated by a least‐squares fit, and if the result is forced through the peak in the response curve, then a correlation for over one hundred runs with gas flows from 0 to 99% of flooding is given by Equations (7) and (8).