Influence of polymer additives on the gas-liquid mass transfer in stirred tanks

✍ Scribed by V. R. Ranade; J. J. Ulbrecht

• Publisher: American Institute of Chemical Engineers
• Year: 1978
• Tongue: English
• Weight: 802 KB
• Volume: 24
• Category: Article
• ISSN: 0001-1541
• DOI: 10.1002/aic.690240505

✦ Synopsis

Abstract

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.