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Liquid/Solid Mass Transfer in Fixed Beds
Author(s) -
Zaki M.,
Nirdosh I.,
Sedahmed G.H.,
Baird M.H.I.
Publication year - 2004
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.200401912
Subject(s) - raschig ring , mass transfer , cylinder , dissolution , chemistry , diffusion , copper , packed bed , analytical chemistry (journal) , chromatography , materials science , thermodynamics , geometry , mathematics , physics , organic chemistry
The liquid/solid mass transfer behavior of a fixed bed of cylinders was studied using the diffusion‐controlled dissolution of copper in acidified potassium dichromate. Variables studied were solution velocity and cylinder diameter. For a steady flow, the data were correlated for the conditions 25 < Re < 600 and Sc = 990 by the equation Sh = 2.65 Sc 0.33 Re 0.5 . A comparison between the present data and previously obtained data for a fixed bed of Raschig rings has revealed that cylinder packing produces higher rates of mass transfer than Raschig rings.