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Turbulent liquid–liquid dispersion in SMV static mixer at high dispersed phase concentration

Lobry, Emeline and Theron, Félicie and Gourdon, Christophe and Le Sauze, Nathalie and Xuereb, Catherine and Lasuye, Thierry Turbulent liquid–liquid dispersion in SMV static mixer at high dispersed phase concentration. (2011) Chemical Engineering Science, vol. 66 (n° 23). pp. 5762-5774. ISSN 0009-2509

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Official URL: http://dx.doi.org/10.1016/J.CES.2011.06.073

Abstract

The aim of this paper is to investigate the influence of physico-chemical parameters on liquid–liquid dispersion at high dispersed phase concentration in Sulzer SMV™ mixer. Four different oil-in-water systems involving two different surfactants are used in order to evaluate the effect of interfacial tension, densities and viscosities ratio on mean droplets size diameters. Moreover the influence of the dispersed phase concentration on the pressure drop as well as on the droplet size distribution is investigated. Two different droplets size distribution analysis techniques are used in order to compare the resulting Sauter mean diameters. The comparison between residence time in the mixer and surfactants adsorption kinetics leads to take into account the evolution of the interfacial tension between both phases at short times. Finally experimental results are correlated as a function of dimensionless Reynolds and Weber numbers.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at :http://www.sciencedirect.com/science/article/pii/S0009250911005380
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
Other partners > Société Artésienne de Vinyle - SAV (FRANCE)
Laboratory name:
Laboratoire de Génie Chimique - LGC (Toulouse, France) - Réaction, mélange & séparation (RMS)
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Deposited By: Audrey LEFEVRE

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