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Use of the pulsation to control a polydispersed particles flow in a new type of pulsed column

Brunet, Léna and Prat, Laurent E. and Casamatta, Gilbert and Carvin, Philippe Use of the pulsation to control a polydispersed particles flow in a new type of pulsed column. (2007) Chemical Engineering and Technology, vol. 3 (n° 11). pp. 1571-1575. ISSN 0930-7516

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Official URL: http://dx.doi.org/10.1002/ceat.200700245

Abstract

New internals have been designed and implemented in a semi-industrial continuous solid-liquid pulsed column. By coupling these internals with a non sinusoidal pulsation, a better control of polydispersed solid particles is achieved. The pulsation is composed of a mixing step during which only the liquid flows through the column and an impulsion step designed to transport the solid phase from stage to stage. Solid and liquid phase behaviours are characterized thanks to residence time distribution measurements. This study demonstrates the strong impact of the pulsation and of the liquid flow rate during the impulsion to reduce the particles segregation inside the pilot. The effects of operating parameters on the liquid phase are also investigated and the choice of an operating compromise is discussed to balance advantages and drawbacks on the process.

Item Type:Article
Additional Information:This publication is availalble on http://www3.interscience.wiley.com/journal/10008333/home
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Other partners > Rhodia (FRANCE)
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
French research institutions > Centre National de la Recherche Scientifique - CNRS
Laboratory name:
Laboratoire de Génie Chimique - LGC (Toulouse, France) - Réaction, mélange & séparation (RMS) - Procédés pour la Chimie Fine
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Deposited By:Laurent PRAT

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