“Innovative high pressure/high temperature, multi-sensing bioreactors system for microbial risk assessment in underground hydrogen storage”

Vasile, Nicolò Santi; Bellini, Ruggero; Bassani, Ilaria; Vizzarro, Arianna; Abdel Azim, Annalisa; Coti, Christian; Barbieri, Donatella; Scapolo, Matteo; Viberti, Dario; Verga, Francesca; Pirri, Fabrizio; Menin, Barbara

doi:10.1016/j.ijhydene.2023.10.245

Cited by 13 publications

(2 citation statements)

References 42 publications

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“…In future work, tests of microbial activity under pressure and temperature conditions similar to those of the reservoir will be conducted in a customized reactor system to obtain experimental data representative of the underground systems ( Vasile et al, 2024 ). This will enable a better outlook on the effects that indigenous microbial communities may have on the storage of gases in Italian underground geological formations and serve as a reference model at national and international level for the implementation and operation of UHS facilities.…”

Section: Discussionmentioning

confidence: 99%

Investigating the activity of indigenous microbial communities from Italian depleted gas reservoirs and their possible impact on underground hydrogen storage

Bellini,

Vasile,

Bassani

et al. 2024

Front. Microbiol.

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H2 produced from renewable energies will play a central role in both greenhouse gas reduction and decarbonization by 2050. Nonetheless, to improve H2 diffusion and utilization as a fuel, large storage capacity systems are needed. Underground storage of natural gas in depleted reservoirs, aquifers and salt caverns is a well-established technology. However, new challenges arise when it comes to storing hydrogen due to the occurrence and activity of indigenous microbial populations in deep geological formations. In a previous study, four Italian natural gas reservoirs were characterized both from a hydro-chemical and microbiological point of view, and predictive functional analyses were carried out with the perspective of underground hydrogen storage (UHS). In the present work, formation waters from the same reservoirs were used as inoculant during batch cultivation tests to characterize microbial activity and its effects on different gas mixtures. Results evidence a predominant acidogenic/acetogenic activity, whilst methanogenic and sulfate reducing activity were only marginal for all tested inoculants. Furthermore, the microbial activation of tested samples is strongly influenced by nutrient availability. Obtained results were fitted and screened in a computational model which would allow deep insights in the study of microbial activity in the context of UHS.

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Section: Discussionmentioning

confidence: 99%

Investigating the activity of indigenous microbial communities from Italian depleted gas reservoirs and their possible impact on underground hydrogen storage

Bellini,

Vasile,

Bassani

et al. 2024

Front. Microbiol.

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“…In this paper, we do not aim to demonstrate the overall feasibility of hydrogen storage, which requires not only the mandatory assessments for any fluid storage (recalled above) but also substantial laboratory work and multidisciplinary studies as it is emerging from the recent scientific literature [4,[7][8][9][10][11][12][13]. Here, we focus on the evaluation of possible hydrogen diffusion through the caprock.…”

Section: Introductionmentioning

confidence: 99%

Underground Hydrogen Storage Safety: Experimental Study of Hydrogen Diffusion through Caprocks

Salina Borello,

Bocchini,

Chiodoni

et al. 2024

Energies

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Underground Hydrogen Storage (UHS) provides a large-scale and safe solution to balance the fluctuations in energy production from renewable sources and energy consumption but requires a proper and detailed characterization of the candidate reservoirs. The scope of this study was to estimate the hydrogen diffusion coefficient for real caprock samples from two natural gas storage reservoirs that are candidates for underground hydrogen storage. A significant number of adsorption/desorption tests were carried out using a Dynamic Gravimetric Vapor/Gas Sorption System. A total of 15 samples were tested at the reservoir temperature of 45 °C and using both hydrogen and methane. For each sample, two tests were performed with the same gas. Each test included four partial pressure steps of sorption alternated with desorption. After applying overshooting and buoyancy corrections, the data were then interpreted using the early time approximation of the solution to the diffusion equation. Each interpretable partial pressure step provided a value of the diffusion coefficient. In total, more than 90 estimations of the diffusion coefficient out of 120 partial pressure steps were available, allowing a thorough comparison between the diffusion of hydrogen and methane: hydrogen in the range of 1 × 10−10 m2/s to 6 × 10−8 m2/s and methane in the range of 9 × 10−10 m2/s to 2 × 10−8 m2/s. The diffusion coefficients measured on wet samples are 2 times lower compared to those measured on dry samples. Hysteresis in hydrogen adsorption/desorption was also observed.

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Carbon circular utilization and sequestration in depleted hydrocarbon reservoirs: Towards a carbon-neutral China

Wu,

Hou,

et al. 2024

Energy Geoscience

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“Innovative high pressure/high temperature, multi-sensing bioreactors system for microbial risk assessment in underground hydrogen storage”

Cited by 13 publications

References 42 publications

Investigating the activity of indigenous microbial communities from Italian depleted gas reservoirs and their possible impact on underground hydrogen storage

Investigating the activity of indigenous microbial communities from Italian depleted gas reservoirs and their possible impact on underground hydrogen storage

Underground Hydrogen Storage Safety: Experimental Study of Hydrogen Diffusion through Caprocks

Carbon circular utilization and sequestration in depleted hydrocarbon reservoirs: Towards a carbon-neutral China

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