Alkaline membrane-free water electrolyser for liquid hydrogen production
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(Published version)
Date
2024
Authors
Yang, B.
Jafarian, M.
Freidoonimehr, N.
Arjomandi, M.
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Journal article
Citation
Renewable Energy, 2024; 233:121172-1-121172-9
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Bo Yang, Mehdi Jafarian, Navid Freidoonimehr, Maziar Arjomandi
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Abstract
Transporting hydrogen in liquid state holds promise as a cost-effective solution for long-distance and large-scale distribution. This paper investigates the feasibility of the application of a membrane-free water electrolyser for liquid hydrogen production. Both conventional alkaline and membrane-free water electrolysers are considered for hydrogen production. The hydrogen produced by these electrolysers are used as the feedstock for subsequent purification and liquefaction processes. Aspen HYSYS is used for systematic investigation of the impact of electrolyser operating conditions and hydrogen purity on the total power consumption for liquid hydrogen production. The findings reveal that, if the safety concerns of the membrane-free water electrolysers can be addressed, they can offer an energy-efficient alternative to alkaline water electrolysers, potentially reducing power consumption by approximately 4 %–10 %.
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Available online 13 August 2024
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© 2024 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).