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Progress in electrochemical flow reactors for laboratory and pilot scale processing

Progress in electrochemical flow reactors for laboratory and pilot scale processing
Progress in electrochemical flow reactors for laboratory and pilot scale processing
The principles governing the selection of an appropriate type of electrochemical flow reactor for use at laboratory or pilot scale are reviewed. Good practice in electrochemistry and electrochemical engineering must be incorporated, together with practical aspects, such as the form of reactants and products, the required performance, ease of assembly, the maintenance schedule and scale-up plans. Diverse electrode forms and reactor designs are illustrated by examples from the authors’ laboratories. The versatile parallel plate geometry, often in modular, filter-press format, occupies a prominent position, both in the laboratory and in industry. The simple parallel plate geometry is readily enhanced by inclusion of porous, 3-dimensional electrodes, structured electrode surfaces and bipolar electrical connections, with necessary consideration of the reaction environment, especially potential- and current-distributions, uniformity of flow and mass transport rates, electrode activity, side reactions and current leakage. More specialised electrode geometries, such as concentric reactors, rotating cylinder electrodes, porous electrodes, packed beds, fluidised beds and bipolar trickle towers, are sometimes chosen. Applications span materials recycling, environmental treatment and electrosynthesis. A decision tree to aid the choice of reactor design features is provided. Recent trends, such as fast prototyping of reactors via 3-D printing of flow channels, miniaturisation and use of multi-physics modelling, are highlighted. Future research and development needs are suggested.
3D printing, , electrochemical engineering, electrode material, porous electrode, reaction environment, reactor, three-dimensional electrodes
0013-4686
121-148
Walsh, Frank
309528e7-062e-439b-af40-9309bc91efb2
Ponce De Leon Albarran, Carlos
508a312e-75ff-4bcb-9151-dacc424d755c
Walsh, Frank
309528e7-062e-439b-af40-9309bc91efb2
Ponce De Leon Albarran, Carlos
508a312e-75ff-4bcb-9151-dacc424d755c

Walsh, Frank and Ponce De Leon Albarran, Carlos (2018) Progress in electrochemical flow reactors for laboratory and pilot scale processing. Electrochimica Acta, 280, 121-148. (doi:10.1016/j.electacta.2018.05.027).

Record type: Article

Abstract

The principles governing the selection of an appropriate type of electrochemical flow reactor for use at laboratory or pilot scale are reviewed. Good practice in electrochemistry and electrochemical engineering must be incorporated, together with practical aspects, such as the form of reactants and products, the required performance, ease of assembly, the maintenance schedule and scale-up plans. Diverse electrode forms and reactor designs are illustrated by examples from the authors’ laboratories. The versatile parallel plate geometry, often in modular, filter-press format, occupies a prominent position, both in the laboratory and in industry. The simple parallel plate geometry is readily enhanced by inclusion of porous, 3-dimensional electrodes, structured electrode surfaces and bipolar electrical connections, with necessary consideration of the reaction environment, especially potential- and current-distributions, uniformity of flow and mass transport rates, electrode activity, side reactions and current leakage. More specialised electrode geometries, such as concentric reactors, rotating cylinder electrodes, porous electrodes, packed beds, fluidised beds and bipolar trickle towers, are sometimes chosen. Applications span materials recycling, environmental treatment and electrosynthesis. A decision tree to aid the choice of reactor design features is provided. Recent trends, such as fast prototyping of reactors via 3-D printing of flow channels, miniaturisation and use of multi-physics modelling, are highlighted. Future research and development needs are suggested.

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Progress in Electrochemical Flow Reactors - Accepted Manuscript
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Accepted/In Press date: 3 May 2018
e-pub ahead of print date: 9 May 2018
Published date: August 2018
Keywords: 3D printing, , electrochemical engineering, electrode material, porous electrode, reaction environment, reactor, three-dimensional electrodes

Identifiers

Local EPrints ID: 421334
URI: http://eprints.soton.ac.uk/id/eprint/421334
ISSN: 0013-4686
PURE UUID: 505bb087-38f2-4348-9f93-b77fc8c329c6
ORCID for Carlos Ponce De Leon Albarran: ORCID iD orcid.org/0000-0002-1907-5913

Catalogue record

Date deposited: 01 Jun 2018 16:30
Last modified: 07 Oct 2020 04:13

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