Articles | Volume 67
https://doi.org/10.5194/adgeo-67-15-2025
https://doi.org/10.5194/adgeo-67-15-2025
10 Oct 2025
 | 10 Oct 2025

Preliminary laboratory studies on hydrogen storage in a salt cavern of the Eocene Barbastro Formation, Southern Pyrenees, Spain

Timea Kovács, José Mediato, Berta Ordóñez, Nuria Garcia-Mancha, Pablo Santolaria, Pablo Calvín, José Sanchez Guzman, Jesús Gracia, Sara Roces, Pilar Mata Campos, and Edgar Berrezueta

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Cited articles

Abe, J. O., Popoola, A. P. I., Ajenifuja, E., and Popoola, O. M.: Hydrogen energy, economy and storage: Review and recommendation, Int. J. Hydrogen Energy, 44, 15072–15086, 2019. 
Bacci, G., Korre, A., and Durucan, S.: An Experimental and Numerical Investigation into the Impact of Dissolution/Precipitation Mechanisms on CO2 Injectivity in the Wellbore and Far Field Regions, Int. J. Greenh. Gas Control, 5, 579–588, https://doi.org/10.1016/j.ijggc.2010.05.007, 2011. 
Basniev, F. A., Omelchenko, K. S., and Adzynova, R. J.: Underground Hydrogen Storage Problems in Russia, in: 18th World Hydrogen Energy Conf. (WHEC 2010), Essen, Germany, 16–21 May 2010, edited by: Stolten, D. and Grube, T., 47–53, ISBN 978-3-89336-654-5, 2010. 
Berrezueta, E., Kovács, T., Herrera-Franco, G., Caicedo-Potosí, J., Jaya-Montalvo, M., Ordóñez-Casado, B., Carrión-Mero, P., and Carneiro, J.: Laboratory Studies on Underground H2 Storage: Bibliometric Analysis and Review of Current Knowledge, Appl. Sci., 14, 11286, https://doi.org/10.3390/app142311286, 2024. 
Carden, P. and Paterson, L.: Physical, Chemical and Energy Aspects of Underground Hydrogen Storage, Int. J. Hydrogen Energy, 4, 559–569, https://doi.org/10.1016/0360-3199(79)90083-1, 1979. 
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Short summary
This study explores how rock salt reacts to hydrogen, aiming to support safe underground storage of renewable energy. Lab tests on samples from a potential salt cavern-type site in Spain showed that hydrogen caused no major changes to the rock. Minor effects were limited and did not impact overall stability. These findings help confirm that storing hydrogen in salt formations is a safe and reliable option for future energy systems.
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