Assessment of the in situ biomethanation potential of a deep aquifer used for natural gas storage.

ABSTRACT: The dihydrogen (H2) sector is undergoing development and will require massive storage solutions. To minimize costs, the conversion of underground geological storage sites, such as deep aquifers, used for natural gas storage into future underground hydrogen storage sites is the favored scenario. However, these sites contain microorganisms capable of consuming H2, mainly sulfate reducers and methanogens. Methanogenesis is, therefore expected but its intensity must be evaluated. Here, in a deep aquifer used for underground geological storage, 17 sites were sampled, with low sulfate concentrations ranging from 21.9 to 197.8 µM and a slow renewal of formation water. H2-selected communities mainly were composed of the families Methanobacteriaceae and Methanothermobacteriaceae and the genera Desu

SUBMITTER: Ranchou-Peyruse M 

PROVIDER: S-EPMC11092278 | biostudies-literature | 2024 May

REPOSITORIES: biostudies-literature