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Mass transport and flow dispersion in the compartments of a modular 10 cell filter-press stack

Ponce de León, Carlos, Whyte, Ian, Reade, Gavin W., Male, Stewart E. and Walsh, Frank C. (2008) Mass transport and flow dispersion in the compartments of a modular 10 cell filter-press stack Australian Journal of Chemistry, 61, (10), pp. 797-804. (doi:10.1071/CH07161).

Record type: Article


Flow dispersion, pressure drop, and averaged mass transport measurements have been made to characterize the reaction environment in an industrial scale electrochemical reactor. The 10 cell filter-press stack was operated with a relatively low mean linear velocity in the range 0.6 to 6.2 cm s–1. Flow dispersion was studied by a perturbation–response technique by electrolyte conductivity measurements at the reactor outlet. Mass transport coefficients were evaluated from the first order reaction decay of dissolved bromine (Br3–) which was anodically generated from 1 mol dm–3 NaBr (aq). Each cell consisted of two 0.72 m2 projected area electrodes separated by a cationic membrane, and each electrolyte compartment contained a high-density polyolefin turbulence promoter. The electrodes consisted of a carbon/polyethylene core with a layer of an activated carbon–poly(vinylidene difluoride) composite on each side. Comparison is made with the mass transport characteristics of a similar system that contains five bipolar cells.

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Submitted date: 18 May 2007
Published date: 6 October 2008
Keywords: activated carbon electrode, bromide ion, bromine, energy storage, filter-press cells, flow dispersion, mass transport, pressure drop, redox flow battery, reaction environment, tribromide ion
Organisations: Engineering Mats & Surface Engineerg Gp


Local EPrints ID: 63401
ISSN: 0004-9425
PURE UUID: ef5fc652-2f3e-4efa-8b3e-161a7bd2a450

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Date deposited: 07 Oct 2008
Last modified: 17 Jul 2017 14:17

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Author: Ian Whyte
Author: Gavin W. Reade
Author: Stewart E. Male
Author: Frank C. Walsh

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