Microbial hydrogen consumption leads to a significant pH increase under high-saline-conditions: implications for hydrogen storage in salt caverns.

ABSTRACT: Salt caverns have been successfully used for natural gas storage globally since the 1940s and are now under consideration for hydrogen (H₂) storage, which is needed in large quantities to decarbonize the economy to finally reach a net zero by 2050. Salt caverns are not sterile and H₂ is a ubiquitous electron donor for microorganisms. This could entail that the injected H₂ will be microbially consumed, leading to a volumetric loss and potential production of toxic H₂S. However, the extent and rates of this microbial H₂ consumption under high-saline cavern conditions are not yet understood. To investigate microbial consumption rates, we cultured the halophilic sulphate-reducing bacteria Desulfohalobium retbaense and the halophilic methan

SUBMITTER: Dopffel N 

PROVIDER: S-EPMC10310820 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature