Development and experimental validation of kinetic models for the hydrogenation/dehydrogenation of Mg/Al based metal waste for energy storage
Publication date
2022-02-18
Document type
Forschungsartikel
Author
Organisational unit
Publisher
Elsevier
Series or journal
Journal of Magnesium and Alloys
ISSN
Periodical volume
10
Periodical issue
10
First page
2761
Last page
2774
Part of the university bibliography
✅
Language
English
Keyword
Thermo-chemical energy storage
Hydrogen storage
Metal hydride
Magnesium based waste
Abstract
With the increased use of renewable energy sources, the need to store large amounts of energy will become increasingly important in the near future. A cost efficient possibility is to use the reaction of recycled Mg waste with hydrogen as thermo-chemical energy storage. Owing to the high reaction enthalpy, the moderate pressure and appropriate temperature conditions, the broad abundance and the recyclability, the Mg/Al alloy is perfectly suitable for this purpose. As further development of a previous work, in which the performance of recycled Mg/Al waste was presented, a kinetic model for hydro- and dehydrogenation is derived in this study. Temperature and pressure dependencies are determined, as well as the rate limiting step of the reaction. First experiments are carried out in an autoclave with a scaled-up powder mass, which is also used to validate the model by simulating the geometry with the scaled-up experiments at different conditions.
Description
This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Version
Published version
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Metadata only access