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Liquid-liquid dispersion in co-current disc and doughnut pulsed column : effect of the operating conditions, physical properties and materials parameters

Lobry, Emeline and Gourdon, Christophe and Xuereb, Catherine and Lasuye, Thierry Liquid-liquid dispersion in co-current disc and doughnut pulsed column : effect of the operating conditions, physical properties and materials parameters. (2013) Chemical Engineering Journal, vol. 233. pp. 24-38. ISSN 1385-8947

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Official URL: http://dx.doi.org/10.1016/j.cej.2013.08.020

Abstract

Pulsed columns are traditionally used to perform liquid liquid extractions at counter-current. They are currently seen as a potential tubular reactor to perform co-current continuous processes. In this paper the case of liquid liquid dispersion is considered. Various parameters are investigated such as the dispersed phase holdup, the flowrate and pulsation conditions but also some process parameters such as the packing material or the physical properties such as the type of surfactant. The energy dissipation rate is estimated according to correlations found in literature. Breakage and coalescence rate models are applied in order to understand the various observed phenomena. Finally, a correlation to predict the mean droplet size is proposed depending on various dimensionless numbers characterizing the flow, the internal and the physico-chemistry of the phase systems.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF can be found at Chemical Engineering Journal website: http://www.sciencedirect.com/science/article/pii/S1385894713010644
HAL Id:hal-00861546
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS (FRANCE)
Other partners > Société Artésienne de Vinyle - SAV (FRANCE)
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Deposited By: Emeline LOBRY
Deposited On:13 Sep 2013 06:22

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