Hydrogen, carbon dioxide, and methane adsorption potential on Jordanian organic-rich source rocks: Implications for underground H2 storage and retrieval

Amer Alanazi*, Hussein Rasool Abid, Muhammad Usman, Muhammad Ali, Alireza Keshavarz, Volker Vahrenkamp, Stefan Iglauer, Hussein Hoteit

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

Hydrogen (H2) storage in geological formations offers a potential large-scale solution suitable for an industrial-scale hydrogen economy. However, the presence of organic residuals can significantly influence the H2 storage efficiency, as well as cushion gas performance, such as CO2 and CH4, injected to maintain healthy reservoir pressure. Thus, the H2 storage efficiency and cushion gas selectivity were thoroughly investigated in this work based on H2, CO2, and CH4 adsorption measurements using, for the first time, actual organic-rich carbonate-rich Jordanian source rock samples (TOC = 13 % to 18 %), measured at 60 °C temperature and a wide range of pressure (0.1 – 10.0 MPa). Initially, the samples were characterized using various analytical methods. Results demonstrated that H2 adsorption capacities reached up to 0.47 mol/kg at 9.0 MPa. The measured adsorption of CO2 was four times higher than H2. An increase in TOC significantly decreased H2 adsorption compared to CO2 and CH4. Additionally, CO2 demonstrated preferential behavior as a cushion gas compared to CH4, attributed mainly to the calcite content and presence of carboxyl and sulfonyl groups. This study provides fundamental data for understanding H2 potential storage issues in an organic-rich rock formation and thus aids in the industrial implementation of an H2 supply chain.

Original languageEnglish (US)
Article number128362
JournalFuel
Volume346
DOIs
StatePublished - Aug 15 2023

Bibliographical note

Publisher Copyright:
© 2023 The Author(s)

Keywords

  • Adsorption
  • Carbon dioxide
  • Hydrogen
  • Methane
  • Organic-rich
  • Underground storage

ASJC Scopus subject areas

  • General Chemical Engineering
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Organic Chemistry

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