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Effect of external mass transport on permeation in a Wicke-Kallenbach cell

Indra Perdana (Institutionen för kemi- och bioteknik, Kemisk reaktionsteknik) ; Boma Wikan Tyoso ; I. Made Bendiyasa ; Rochmadi ; Sang Kompiang Wirawan (Institutionen för kemi- och bioteknik, Kemisk reaktionsteknik) ; Derek Creaser (Institutionen för kemi- och bioteknik, Kemisk reaktionsteknik)
Chemical Engineering Research and Design (0263-8762). Vol. 87 (2009), 10, p. 1438-1447.
[Artikel, refereegranskad vetenskaplig]

Wicke-Kallenbach (WK) cells are often used for studying separation and component transport in porous material. In order to obtain important transport parameters, mathematical models are frequently developed but they generally consider the fluid phase in the WK compartments to be free of concentration gradients and thus external mass transport resistance is neglected. The present work is a detailed study of how the external transport influences permeation through porous material in a WK cell. External mass transfer effects were demonstrated experimentally and they were further studied from three-dimensional (3-D) model simulations. Film theory was applied to develop an appropriate Sherwood number correlation for the external mass transport coefficient. It was shown that the flow in the compartment and geometrical factors of the WK cell had significant influences on the permeation. It was found that introducing the proposed external mass transport correlation into a simplified one-dimensional (1-D) model was adequate to reproduce results from both the experimental data and the 3-D model.

Nyckelord: Wicke Kallenbach cell, External mass tranport, Sherwood correlation



Denna post skapades 2009-10-02. Senast ändrad 2015-03-30.
CPL Pubid: 99479

 

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Institutioner (Chalmers)

Institutionen för kemi- och bioteknik, Kemisk reaktionsteknik (2005-2014)

Ämnesområden

Molekylära transportprocesser i kemisk processteknik
Annan kemiteknik
Kemisk apparatteknik

Chalmers infrastruktur