Author Identifier

Stefan Iglauer

ORCID: 0000-0002-8080-1590

Document Type

Other

Publication Title

Geophysical Research Letters

Publisher

Wiley

School

School of Engineering

Funders

Edith Cowan University - Open Access Support Scheme 2021

Comments

Iglauer, S., Abid, H., Al-Yaseri, A., & Keshavarz, A. (2021). Hydrogen adsorption on sub-bituminous coal: Implications for hydrogen geo-storage. Geophysical Research Letters, 48(10), article e2021GL092976. https://doi.org/10.1029/2021GL092976


Abstract

Hydrogen is a clean fuel that can potentially revolutionize the energy supply chain and decarbonize fuel consumption. However, a key hurdle that needs to be overcome before a full-scale hydrogen economy can be established is hydrogen storage which is currently the main limitation. Here, we propose that hydrogen gas can be stored in underground coal seams, where it adsorbs on the coal surface. However, currently, no hard data related to such a procedure exists. We, therefore, demonstrate experimentally that significant amounts of hydrogen gas can be stored via this route. Hydrogen adsorption capacities reached 0.6 moles H2/kg of coal at 14.3 MPa, and adsorption capacity initially increased strongly with pressure (up to ∼4 MPa) and then plateaued out, while temperature only had a very minor influence. This study provides fundamental data for hydrogen storage in coal seams, and thus aids in the industrial implementation of a hydrogen supply chain.

DOI

10.1029/2021GL092976

Creative Commons License

Creative Commons Attribution 4.0 License
This work is licensed under a Creative Commons Attribution 4.0 License.

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