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Influence of polymer additives on the gas‐liquid mass transfer in stirred tanks
Author(s) -
Ranade V. R.,
Ulbrecht J. J.
Publication year - 1978
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.690240505
Subject(s) - carboxymethyl cellulose , mass transfer , viscoelasticity , mass transfer coefficient , viscosity , chemistry , polymer , polyacrylamide , chemical engineering , chromatography , thermodynamics , sodium , polymer chemistry , organic chemistry , physics , engineering
The influence of polymer additives upon the gas‐liquid mass transfer in stirred tanks is examined. While the addition of sodium carboxymethyl‐cellulose brings about a reduction of the overall liquid side mass transport coefficient which is in line with the predictions by earlier works, the reduction of k L a in polyacrylamide solutions of equal viscosity is much stronger. This is explained by the viscoelasticity of the PAA solutions, and an empirical correlation is proposed.