TY - JOUR
T1 - A holistic overview of underground hydrogen storage
T2 - Influencing factors, current understanding, and outlook
AU - Raza, Arshad
AU - Arif, Muhammad
AU - Glatz, Guenther
AU - Mahmoud, Mohamed
AU - Al Kobaisi, Mohammed
AU - Alafnan, Saad
AU - Iglauer, Stefan
N1 - Funding Information:
This work was supported by the King Fahd University of Petroleum and Minerals [Grant No. KU201004], Khalifa University [Grant No. KU-KFUPM-2020-28], and the Australian Research Council [Grant No. DP220102907]. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, or in the decision to publish the results.
Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2022/12/15
Y1 - 2022/12/15
N2 - Underground hydrogen storage in geologic media has gained significant interest as a strategy toward net-zero emissions. However, the selection of a feasible geologic storage medium is not a straightforward task but rather a complex function of the petrophysical and geo-mechanical characteristics of the host rock. This article, therefore, critically reviews the key elements pertinent to underground hydrogen storage along with significant recent developments. Firstly, the physical and chemical properties of hydrogen and the use of hydrogen as a fuel are introduced. Next, the trapping mechanisms pertinent to underground hydrogen storage and the factors influencing the hydrogen trapping capacity (e.g., relative permeability, capillary pressure, and wettability datasets for rock/ hydrogen /brine systems) are evaluated and their parametric trends are summarized. Other associated properties such as H2/brine interfacial tension, hydrogen-brine diffusivity, and biological factors are also evaluated. Moreover, a detailed assessment for storage capacity, injectivity, containment, storage delivery, storage efficiency, cost, monitoring, and challenges pertinent to hydrogen storage is provided. Finally, we categorise the current research gaps and the outlook for hydrogen storage. This review thus provides a comprehensive summary of the latest developments pertaining to subsurface hydrogen storage thereby helping to de-risk the design of large-scale repositories.
AB - Underground hydrogen storage in geologic media has gained significant interest as a strategy toward net-zero emissions. However, the selection of a feasible geologic storage medium is not a straightforward task but rather a complex function of the petrophysical and geo-mechanical characteristics of the host rock. This article, therefore, critically reviews the key elements pertinent to underground hydrogen storage along with significant recent developments. Firstly, the physical and chemical properties of hydrogen and the use of hydrogen as a fuel are introduced. Next, the trapping mechanisms pertinent to underground hydrogen storage and the factors influencing the hydrogen trapping capacity (e.g., relative permeability, capillary pressure, and wettability datasets for rock/ hydrogen /brine systems) are evaluated and their parametric trends are summarized. Other associated properties such as H2/brine interfacial tension, hydrogen-brine diffusivity, and biological factors are also evaluated. Moreover, a detailed assessment for storage capacity, injectivity, containment, storage delivery, storage efficiency, cost, monitoring, and challenges pertinent to hydrogen storage is provided. Finally, we categorise the current research gaps and the outlook for hydrogen storage. This review thus provides a comprehensive summary of the latest developments pertaining to subsurface hydrogen storage thereby helping to de-risk the design of large-scale repositories.
KW - Environment
KW - Porous media
KW - Subsurface formation
KW - Trapping mechanisms
KW - Underground hydrogen storage
UR - http://www.scopus.com/inward/record.url?scp=85136087536&partnerID=8YFLogxK
U2 - 10.1016/j.fuel.2022.125636
DO - 10.1016/j.fuel.2022.125636
M3 - Review article
AN - SCOPUS:85136087536
SN - 0016-2361
VL - 330
JO - Fuel
JF - Fuel
M1 - 125636
ER -