Observation of the Main Natural Parameters Influencing the Formation of Gas Hydrates
Chemical composition in seawater of marine sediments, as well as the physical properties and chemical composition of soils, influence the phase behavior of natural gas hydrate by disturbing the hydrogen bond network in the water-rich phase before hydrate formation. In this article, some marine sedim...
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ftuncamerinoiris:oai:pubblicazioni.unicam.it:11581/452974 2024-04-14T08:02:52+00:00 Observation of the Main Natural Parameters Influencing the Formation of Gas Hydrates Gambelli A. M. Tinivella U. Giovannetti R. Castellani B. Giustiniani M. Rossi A. Zannotti M. Rossi F. Gambelli, A. M. Tinivella, U. Giovannetti, R. Castellani, B. Giustiniani, M. Rossi, A. Zannotti, M. Rossi, F. 2021 https://hdl.handle.net/11581/452974 https://doi.org/10.3390/en14071803 https://www.mdpi.com/1996-1073/14/7/1803 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000638411700001 volume:14 issue:7 firstpage:1 lastpage:25 numberofpages:25 journal:ENERGIES https://hdl.handle.net/11581/452974 doi:10.3390/en14071803 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85104997863 https://www.mdpi.com/1996-1073/14/7/1803 info:eu-repo/semantics/openAccess info:eu-repo/semantics/article 2021 ftuncamerinoiris https://doi.org/10.3390/en14071803 2024-03-21T20:38:37Z Chemical composition in seawater of marine sediments, as well as the physical properties and chemical composition of soils, influence the phase behavior of natural gas hydrate by disturbing the hydrogen bond network in the water-rich phase before hydrate formation. In this article, some marine sediments samples, collected in National Antarctic Museum in Trieste, were analyzed and properties such as pH, conductivity, salinity, and concentration of main elements of water present in the sediments are reported. The results, obtained by inductively coupled plasma-mass spectrometry (ICP-MS) and ion chromatography (IC) analysis, show that the more abundant cation is sodium and, present in smaller quantities, but not negligible, are calcium, potassium, and magnesium, while the more abundant anion is chloride and sulfate is also appreciable. These results were successively used to determine the thermodynamic parameters and the effect on salinity of water on hydrates’ formation. Then, hydrate formation was experimentally tested using a small-scale apparatus, in the presence of two different porous media: a pure silica sand and a silica-based natural sand, coming from the Mediterranean seafloor. The results proved how the presence of further compounds, rather than silicon, as well as the heterogeneous grainsize and porosity, made this sand a weak thermodynamic and a strong kinetic inhibitor for the hydrate formation process. Article in Journal/Newspaper Antarc* Antarctic CAMPUS Pubblicazioni Scientifiche Unicam (Università di Camerino) Antarctic Energies 14 7 1803 |
institution |
Open Polar |
collection |
CAMPUS Pubblicazioni Scientifiche Unicam (Università di Camerino) |
op_collection_id |
ftuncamerinoiris |
language |
English |
description |
Chemical composition in seawater of marine sediments, as well as the physical properties and chemical composition of soils, influence the phase behavior of natural gas hydrate by disturbing the hydrogen bond network in the water-rich phase before hydrate formation. In this article, some marine sediments samples, collected in National Antarctic Museum in Trieste, were analyzed and properties such as pH, conductivity, salinity, and concentration of main elements of water present in the sediments are reported. The results, obtained by inductively coupled plasma-mass spectrometry (ICP-MS) and ion chromatography (IC) analysis, show that the more abundant cation is sodium and, present in smaller quantities, but not negligible, are calcium, potassium, and magnesium, while the more abundant anion is chloride and sulfate is also appreciable. These results were successively used to determine the thermodynamic parameters and the effect on salinity of water on hydrates’ formation. Then, hydrate formation was experimentally tested using a small-scale apparatus, in the presence of two different porous media: a pure silica sand and a silica-based natural sand, coming from the Mediterranean seafloor. The results proved how the presence of further compounds, rather than silicon, as well as the heterogeneous grainsize and porosity, made this sand a weak thermodynamic and a strong kinetic inhibitor for the hydrate formation process. |
author2 |
Gambelli, A. M. Tinivella, U. Giovannetti, R. Castellani, B. Giustiniani, M. Rossi, A. Zannotti, M. Rossi, F. |
format |
Article in Journal/Newspaper |
author |
Gambelli A. M. Tinivella U. Giovannetti R. Castellani B. Giustiniani M. Rossi A. Zannotti M. Rossi F. |
spellingShingle |
Gambelli A. M. Tinivella U. Giovannetti R. Castellani B. Giustiniani M. Rossi A. Zannotti M. Rossi F. Observation of the Main Natural Parameters Influencing the Formation of Gas Hydrates |
author_facet |
Gambelli A. M. Tinivella U. Giovannetti R. Castellani B. Giustiniani M. Rossi A. Zannotti M. Rossi F. |
author_sort |
Gambelli A. M. |
title |
Observation of the Main Natural Parameters Influencing the Formation of Gas Hydrates |
title_short |
Observation of the Main Natural Parameters Influencing the Formation of Gas Hydrates |
title_full |
Observation of the Main Natural Parameters Influencing the Formation of Gas Hydrates |
title_fullStr |
Observation of the Main Natural Parameters Influencing the Formation of Gas Hydrates |
title_full_unstemmed |
Observation of the Main Natural Parameters Influencing the Formation of Gas Hydrates |
title_sort |
observation of the main natural parameters influencing the formation of gas hydrates |
publishDate |
2021 |
url |
https://hdl.handle.net/11581/452974 https://doi.org/10.3390/en14071803 https://www.mdpi.com/1996-1073/14/7/1803 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000638411700001 volume:14 issue:7 firstpage:1 lastpage:25 numberofpages:25 journal:ENERGIES https://hdl.handle.net/11581/452974 doi:10.3390/en14071803 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85104997863 https://www.mdpi.com/1996-1073/14/7/1803 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3390/en14071803 |
container_title |
Energies |
container_volume |
14 |
container_issue |
7 |
container_start_page |
1803 |
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1796318197819899904 |