Temperature dependence of hydrogen diffusion in reservoir rocks: implications for hydrogen geologic storage

Yun Yang, Amber Zandanel, Shimin Liu, Chelsea W. Neil, Timothy C. Germann, Michael R. Gross

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Hydrogen (H2) has recently gained momentum as a promising clean energy alternative to fossil fuels. The intermittent nature of renewable energy, as the source of green H2, necessitates temporary H2 storage in subsurface geologic formations. To quantify storage potential and leakage risk, it is crucial to fully characterize subsurface H2 transport behavior. This work aims to measure the diffusion of H2 through relevant reservoir rocks, including two sandstones (Amherst Grey and Birmingham) and a limestone (Indiana). Breakthrough as a function of temperature is measured and used to calculate the effective diffusion coefficients and activation energy for diffusion at three different temperatures between 20 and 75 °C. Calculated diffusion coefficients are then used to estimate the subsurface plume size during storage in sandstone and limestone reservoirs. We observe that diffusive flow slightly expands plume size by up to 7%, and this effect is most pronounced in formations with low water saturation.

Original languageEnglish (US)
Pages (from-to)2051-2065
Number of pages15
JournalEnergy Advances
Volume3
Issue number8
DOIs
StatePublished - Jul 9 2024

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Energy (miscellaneous)

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