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Effect of Superimposed Pulsating Flow on Liquid‐Solid Mass Transfer in Fixed Beds
Author(s) -
Zaki Magdy,
Nirdosh Inderjit,
Baird Malcolm H. I.,
Sedahmed Gomaa H.
Publication year - 2005
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450830326
Subject(s) - reynolds number , sherwood number , schmidt number , mass transfer , physics , oscillation (cell signaling) , analytical chemistry (journal) , chemistry , thermodynamics , turbulence , chromatography , nusselt number , biochemistry
The liquid‐solid mass transfer behaviour of a fixed bed of cylinders has been studied using the dissolution of copper in acidified dichromate solution under pulsating flow conditions. The bed diameter was 100 mm. The depth of the working section was 95 mm and the length and diameter of the cylinders were 19.1 mm. Variables studied were steady flow superficial liquid velocity, and oscillation amplitude and frequency. Data have been correlated as the Sherwood number in terms of Schmidt number and the cylinder Reynolds numbers for steady and oscillatory flow. The form of the correlation permits comparison with literature data for the limiting cases where either of these Reynolds numbers is zero.