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Title: PHASE BOUNDARY EQUILIBRIUM CONDITIONS FOR CH4, C2H6 AND C3H8 IN MARINE QUARTZ-BASED POROUS SAND: THERMODYNAMIC EVOLUTION OF THE SYSTEM AND DEVIATION FROM THE IDEAL TREND
PHASE BOUNDARY EQUILIBRIUM CONDITIONS FOR CH4, C2H6 AND C3H8 IN MARINE QUARTZ-BASED POROUS SAND: THERMODYNAMIC EVOLUTION OF THE SYSTEM AND DEVIATION FROM THE IDEAL TREND

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Alberto Maria Gambelli; Jessica Di Mario; Giovanni Gigliotti
10.5593/sgem2024v/3.2/s06.47
10.5593/sgem2024v/3.2
1314-2704
978-619-7603-76-7
English
24
3.2
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE •    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
Sustainable Oil, Gas, and Energy Transition Exploration
Natural gas hydrate reservoirs often consist of a mixture of various gaseous species: small-chain hydrocarbons, as methane, ethane, propane and butane, and other species, as carbon dioxide, nitrogen, oxygen, hydrogen sulfide and others. Every species shows different forming conditions. Moreover, those conditions may change as a function of the mixture composition and the properties of the surrounding environment. The present study deals the production of hydrates with small-chain hydrocarbons, within a silica-based porous marine sediment. Hydrates were formed and melted, the experimental phase boundary equilibrium conditions were then compared with the ideal ones, obtained from literature. Such a comparison allowed to characterize how the sediment acted during the process. In presence of methane and ethane, It was found capable to promote the process, while It acted as inhibitor for propane hydrates. The difference observed between the various species, were finally explained in terms of typology of hydrate structure formed and molecular diameter of the guest species.
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The authors would acknowledge the Department of Civil and Environmental Engineering of the University of Perugia.
conference
https://doi.org/10.5593/sgem2024v/3.2/s06.47
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Proceedings of 24th International Multidisciplinary Scientific GeoConference SGEM 2024
24th International Multidisciplinary Scientific GeoConference SGEM 2024, 27 - 30 November, 2024
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.
367-374
27 - 30 November, 2024
website
10089
natural gas hydrates; phase boundary equilibrium conditions; marine porous sediments; cage occupancy; small-chain hydrocarbons.

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