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Towards the design of an intensified coagulator

Lachin, Kevin and Le Sauze, Nathalie and Di Miceli Raimondi, Nathalie and Aubin, Joelle and Fletcher, David F. and Cabassud, Michel and Gourdon, Christophe Towards the design of an intensified coagulator. (2017) Chemical Engineering and Processing, 121. 1-14. ISSN 0255-2701

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Official URL: https://dx.doi.org/10.1016/j.cep.2017.08.003

Abstract

This study compares the hydrodynamics in three millimeter-scale continuous reactor geometries that can be easily used in laboratories and industries – a straight tube, a coiled tube and a Dean-Hex reactor – via numerical simulations and analyses the data in a way that is specifically relevant to coagulation processes, thereby offering insights for engineers to develop new coagulation reactors. A numerical approach based on Lagrangian particle tracking is presented to better understand the impact of the geometry and flow on properties that influence coagulation. The results show that the Dean-Hex meandering geometry provides narrower residence time and shear rate distributions, as well as higher mean average shear rates and Camp number distribution than the other geometries. This is attributed to the generation of transverse flows and radial mixing in the Dean-Hex reactor and suggests that a faster and more homogenous coagulation can be expected.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The original PDF of the article can be found at Chemical Engineering and Processing website : https://www.sciencedirect.com/science/article/pii/S0255270117305809?via%3Dihub
HAL Id:hal-01769569
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 Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > University of Sydney (AUSTRALIA)
Laboratory name:
Funders:
French National Research Agency (ANR)
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Deposited By: Michel CABASSUD
Deposited On:18 Apr 2018 08:49

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