Optimized design of an electrochemical filter-press reactor using CFD methods

A former laboratory filter-press electrochemical reactor previously used in electrodialysis, electrosynthesis and wastewater treatment was studied from a hydrodynamic point of view using computational fluid dynamics (CFD). A finite elements method (FEM) software environment was used in order to simu...

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Bibliographic Details
Published in:Chemical engineering journal (Lausanne, Switzerland : 1996) Switzerland : 1996), 2011-05, Vol.169 (1), p.270-281
Main Authors: Frías-Ferrer, Ángel, Tudela, Ignacio, Louisnard, Olivier, Sáez, Verónica, Esclapez, María Deseada, Díez-García, María Isabel, Bonete, Pedro, González-García, José
Format: Article
Language:English
Subjects:
Applied sciences
CFD
Chemical engineering
Computational fluid dynamics
Computer simulation
computer software
Electrochemistry
Engineering Sciences
Exact sciences and technology
Filter-press reactor
Finite element method
Fluid flow
Focusing
General purification processes
Hydrodynamics
Hydrodynamics of contact apparatus
Laminar flow
Mass transfer
Mathematical analysis
Mathematical models
Membrane separation (reverse osmosis, dialysis...)
Pollution
Reactors
RTD
wastewater treatment
Wastewaters
Water treatment and pollution
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Summary:A former laboratory filter-press electrochemical reactor previously used in electrodialysis, electrosynthesis and wastewater treatment was studied from a hydrodynamic point of view using computational fluid dynamics (CFD). A finite elements method (FEM) software environment was used in order to simulate both fluid velocity field and tracer diffusion in the reactor for different low Reynolds numbers, enabling the estimation of active and stagnant areas inside the reactor. These results provided interesting information in order to design a new electrochemical compartment focusing on the entrance-exit manifolds to minimize the formation of stagnant areas within the reactor. CFD methods were again employed to study and optimize the new reactor in order to predict its performance. In both cases, CFD calculations were compared with residence time distribution (RTD) studies in order to validate the simulations.
ISSN:1385-8947
1873-3212
DOI:10.1016/j.cej.2011.02.053