Volume 42, Issue 11 pp. 2340-2347
Research Article

Hydrogen Production via Load-Matched Coupled Solar-Proton Exchange Membrane Electrolysis Using Aqueous Methanol

Harvey Arellano-Garcia

Corresponding Author

Harvey Arellano-Garcia

University of Surrey, Department of Chemical and Process Engineering, Stag Hill Campus Guildford, GU2 7XH Guildford, United Kingdom

Brandenburgische Technische Universität Cottbus-Senftenberg, LS Prozess- und Anlagentechnik, Platz der Deutschen Einheit 1, 03046 Cottbus, Germany

Correspondence: Harvey Arellano-Garcia ([email protected]), University of Surrey, Department of Chemical and Process Engineering, Stag Hill Campus Guildford, Guildford GU2 7XH, United Kingdom.Search for more papers by this author
Maximilian R. Ife

Maximilian R. Ife

University of Surrey, Department of Chemical and Process Engineering, Stag Hill Campus Guildford, GU2 7XH Guildford, United Kingdom

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Mohammed Sanduk

Mohammed Sanduk

University of Surrey, Department of Chemical and Process Engineering, Stag Hill Campus Guildford, GU2 7XH Guildford, United Kingdom

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Daniel Sebastia-Saez

Daniel Sebastia-Saez

University of Surrey, Department of Chemical and Process Engineering, Stag Hill Campus Guildford, GU2 7XH Guildford, United Kingdom

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First published: 17 July 2019
Citations: 8

Abstract

Hydrogen production via a directly coupled solar-proton exchange membrane (PEM) electrolysis system using aqueous methanol instead of water was investigated. The effect of load matching and methanol concentration on hydrogen production rates, electrolysis efficiency, and solar-hydrogen efficiency was evaluated. The electrolysis efficiencies were subsequently used in simulation studies to estimate production costs in scaled-up systems. The results demonstrate that the added hydrogen production associated with the methanol solutions leads to favorable hydrogen production costs at smaller scales.

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