FN Archimer Export Format PT J TI Calorimetric study of carbon dioxide (CO2) hydrate formation and dissociation processes in porous media BT AF Benmesbah, Fatima Doria Clainv, Pascal Fandino, Olivia Osswald, Veronique Fournaison, Laurence Dicharry, Christophe RUFFINE, Livio Delahaye, Anthony AS 1:1,2;2:1,3;3:2;4:1;5:1;6:4;7:2;8:1; FF 1:;2:;3:PDG-REM-GEOOCEAN-CYBER;4:;5:;6:;7:PDG-REM-GEOOCEAN-CYBER;8:; C1 Université Paris-Saclay, INRAE, FRISE, 92761, Antony, France Geo-Ocean, Univ Brest, CNRS, Ifremer, UMR6538, F-29280 Plouzane, France Leonard de Vinci Pôle Universitaire, Research Center, 12 avenue Léonard de Vinci, 92916, Paris La Défense, France CNRS/TOTALENERGIES/UNIV PAU & PAYS ADOUR, Laboratoire des Fluides Complexes et leurs Réservoirs - IPRA, UMR5150, 64000, Pau, France C2 INRAE, FRANCE IFREMER, FRANCE POLE LEONARD DE VINCI, FRANCE UNIV PAU & PAYS ADOUR, FRANCE SI BREST SE PDG-REM-GEOOCEAN-CYBER UM GEO-OCEAN IN WOS Ifremer UMR copubli-france copubli-p187 copubli-univ-france IF 4.7 TC 4 UR https://archimer.ifremer.fr/doc/00795/90734/96320.pdf LA English DT Article DE ;CO2 hydrate;Cold storage;Differential thermal analysis;Particle and pore size;Porous media;Water saturation AB Understanding the formation and dissociation mechanisms of gas hydrate in porous media is important for the development of new energy-efficient and environmentally friendly technologies related to cold storage as they provide significant latent heat and energy density at suitable phase change temperature. The challenge is to understand the interactions between gas hydrates and the chosen storage media in order to assess the operating conditions likely to optimize time and energy consumption in cold production and storage systems. In this work, CO2 hydrates formation and dissociation are investigated in two morphologically different porous materials: sand and silica gels. A calorimetric approach is applied to study both the CO2 hydrate formation kinetics, particularly the induction time, and the amount of hydrate formed for each of the two porous materials. The experiments are performed using a differential thermal analysis device with two identical measuring cells. The present work is focused on assessing the effect of key factors like water saturation, particle size and the morphology of porous media on CO2 hydrate formation and dissociation processes. Overall, the results do not show a statistically significant correlation between these factors and the induction time. Interestingly, the results obtained with dual porous silica gel showed a higher amount of hydrate formed compared to those with sand for similar initial pressure, temperature and water content conditions. This result may be due to the fact that silica gels provide higher surface area due to their smaller particle size (20-45 µm vs. 80-450 µm for sand), and the presence of internal pore volume in silica gel particles. PY 2022 PD DEC SO Chemical Engineering Science SN 0009-2509 PU Elsevier BV VL 264 UT 000875725900004 DI 10.1016/j.ces.2022.118108 ID 90734 ER EF