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Aide à la décision pour le déploiement de l’hydrogène comme vecteur énergétiqueà l’échelle d’un territoire
No full textInternational audienc
Impact of biomethane in a deep aquifer storage: multiphase reactive transport modeling of H2S and O2 reactivity - Implication for hydrogen storage
No full textInternational audienceThe integration of renewable natural gas (biomethane) into gas grids is gaining attention as a means of reducing greenhouse gas emissions and accelerate the energy transition. In Europe, part of the natural gas stored in deep aquifers is being replaced by biomethane. Unlike conventional natural gas, biomethane may contain oxygen (O₂), which can affect groundwater, and gas quality. Additionally, hydrogen sulfide (H₂S) may be present in the injected gas or produced through microbial sulfate reduction. Field data from a sandstone aquifer storage site reveal long-term changes in H₂S content of the withdrawn gas and highlight the influence of co-injected O₂. To interpret these processes, we performed multiphase reactive transport simulations at reservoir scale with the HYTEC code. The models account for microbial kinetics and geochemical reactions, focusing on H₂S production by sulfate-reducing bacteria (SRB) and H₂S consumption by O₂.Reservoir modeling enables interpretation of changes in H₂S concentrations, using large-scale reservoir simulations that reproduce the annual cycles of injection/withdrawal of natural gas and biomethane-natural gas mixtures over two decades. These results emphasize the critical role of microbial processes and the importance of integrating them into reactive transport models to improve predictions of long-term storage behavior and gas quality. Beyond biomethane and O₂ influence, this study demonstrates the value of reactive transport modelling for studying renewable gas storage
Measurement and modeling of the thermodynamic behavior of xenon+argon system: application to direct detection of dark matter
No full textInternational audienc
A general Gibbs energy minimization algorithm for modelling solid-fluid equilibria in binary systems involving totally and partially miscible solids, pure solids, hydrates and co-crystals
No full textInternational audienc
ASSESSING FUTURE MATERIAL DEMAND FROM THE POWER SECTOR UNDER CARBON AND WATER CONSTRAINED SCENARIOS: A long-term study conducted with TIAM-FR
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Politiques matérielles de la maintenance urbaine. De quelques manières de faire durer la ville
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Organisateurs de la track “Re/symmetrizing Care: Thinking Technical and Natural Maintenance in the Anthropocene”
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Climate futures and valuation paradoxes: The technical and political affordances of negative emissions
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: À propos de : Thomas Angeletti, "L’invention de l’économie française", Les Presses de Sciences Po
No full textLa Vie des idéeshttps://laviedesidees.fr/Denaturaliser-l-economie-francais