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Effect of Tween 80 on Bubble Size and Mass Transfer in a Bubble Contactor

✍ Scribed by I. Belo; A. García-Abuín; D. Gómez-Díaz; J. M. Navaza; I. Vidal-Tato

Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
315 KB
Volume
34
Category
Article
ISSN
0930-7516

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✦ Synopsis

Abstract

Gas absorption in aqueous solutions with Tween 80 and absorption processes based on hydrodynamics and mass transfer is determined. The impact of surfactant concentration on gas holdup and gas‐liquid interfacial area is analyzed, observing an increase of these parameters with surfactant concentration. The influence of liquid‐phase contamination on the absorption process is investigated on the basis of the liquid‐film mass transfer coefficient, removing the effect caused by the presence of a surfactant and the gas flow rate on the interfacial area and, thereby, on the volumetric mass transfer coefficient. The opposite effect on the mass transfer coefficient can be observed which decreases in the presence of the surfactant.

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Organic liquids in a bubble column: Hold
Organic liquids in a bubble column: Holdups and mass transfer coefficients
✍ S. S. öztürk; A. Schumpe; W.-D. Deckwer 📂 Article 📅 1987 🏛 American Institute of Chemical Engineers 🌐 English ⚖ 572 KB

Gas holdups and volumetric mass transfer coefficients k,a are studied in a bubble column of 0.095 m dia. with 50 different gas-liquid systems comprising pure and mixed organic liquids and various gases. The gas holdups measured in pure organic liquids can be represented by existing correlations but