Injection of CO2/N2 gaseous mixtures into gas hydrates to contemporary perform CH4 recovery and CO2 storage

Carbon dioxide injection into natural gas hydrate reservoirs represents a promising opportunity to predispose a theoretically carbon neutral energy source. This technique allows to replace methane molecules with an equal number of carbon dioxide molecules and, consequently, to balance in advance emi...

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Autores principales:	Filipponi Mirko, Gambelli Alberto Maria, Li Yan, Presciutti Andrea, Castellani Beatrice, Nicolini Andrea, Rossi Federico, Cotana Franco
Formato:	article
Lenguaje:	EN FR
Publicado:	EDP Sciences 2021
Materias:	natural gas hydrates co2 capture flue-gas methane replacement Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/01fccdb87b3044f595640f8b80cda4ce
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spelling	oai:doaj.org-article:01fccdb87b3044f595640f8b80cda4ce2021-11-08T15:18:54ZInjection of CO2/N2 gaseous mixtures into gas hydrates to contemporary perform CH4 recovery and CO2 storage2267-124210.1051/e3sconf/202131208009https://doaj.org/article/01fccdb87b3044f595640f8b80cda4ce2021-01-01T00:00:00Zhttps://www.e3s-conferences.org/articles/e3sconf/pdf/2021/88/e3sconf_ati2021_08009.pdfhttps://doaj.org/toc/2267-1242Carbon dioxide injection into natural gas hydrate reservoirs represents a promising opportunity to predispose a theoretically carbon neutral energy source. This technique allows to replace methane molecules with an equal number of carbon dioxide molecules and, consequently, to balance in advance emissions associated to methane utilization. While the direct CH4/CO2 replacement has been widely investigated, more data and scientific evidences are required to well define the feasibility of recovering methane by replacing it with CO2-based gaseous mixtures. In this sense, the most promising opportunity consists in flue-gas mixtures. In some cases, the presence of nitrogen was found capable to improve the overall efficiency, due to the direct competition between CH4 and N2 molecules to fill small cages characterizing hydrate structures. Moreover, these mixtures are extremely less-expensive than pure carbon dioxide. In this work, a binary CO2/N2 (50/50 vol%) gaseous mixture was used to recover methane contained into hydrate structures. Experiments were carried out in a small-scale experimental apparatus, designed to simulate a natural gas hydrate reservoir and to intervene on it with replacement techniques. Composition of gaseous mixtures present into hydrates and in the gaseous phase present immediately above, where defined via gas-chromatographic analyses. Finally, results were compared with data currently present in literature, in order to validate their consistency.Filipponi MirkoGambelli Alberto MariaLi YanPresciutti AndreaCastellani BeatriceNicolini AndreaRossi FedericoCotana FrancoEDP Sciencesarticlenatural gas hydratesco2 captureflue-gasmethane replacementEnvironmental sciencesGE1-350ENFRE3S Web of Conferences, Vol 312, p 08009 (2021)
institution	DOAJ
collection	DOAJ
language	EN FR
topic	natural gas hydrates co2 capture flue-gas methane replacement Environmental sciences GE1-350
spellingShingle	natural gas hydrates co2 capture flue-gas methane replacement Environmental sciences GE1-350 Filipponi Mirko Gambelli Alberto Maria Li Yan Presciutti Andrea Castellani Beatrice Nicolini Andrea Rossi Federico Cotana Franco Injection of CO2/N2 gaseous mixtures into gas hydrates to contemporary perform CH4 recovery and CO2 storage
description	Carbon dioxide injection into natural gas hydrate reservoirs represents a promising opportunity to predispose a theoretically carbon neutral energy source. This technique allows to replace methane molecules with an equal number of carbon dioxide molecules and, consequently, to balance in advance emissions associated to methane utilization. While the direct CH4/CO2 replacement has been widely investigated, more data and scientific evidences are required to well define the feasibility of recovering methane by replacing it with CO2-based gaseous mixtures. In this sense, the most promising opportunity consists in flue-gas mixtures. In some cases, the presence of nitrogen was found capable to improve the overall efficiency, due to the direct competition between CH4 and N2 molecules to fill small cages characterizing hydrate structures. Moreover, these mixtures are extremely less-expensive than pure carbon dioxide. In this work, a binary CO2/N2 (50/50 vol%) gaseous mixture was used to recover methane contained into hydrate structures. Experiments were carried out in a small-scale experimental apparatus, designed to simulate a natural gas hydrate reservoir and to intervene on it with replacement techniques. Composition of gaseous mixtures present into hydrates and in the gaseous phase present immediately above, where defined via gas-chromatographic analyses. Finally, results were compared with data currently present in literature, in order to validate their consistency.
format	article
author	Filipponi Mirko Gambelli Alberto Maria Li Yan Presciutti Andrea Castellani Beatrice Nicolini Andrea Rossi Federico Cotana Franco
author_facet	Filipponi Mirko Gambelli Alberto Maria Li Yan Presciutti Andrea Castellani Beatrice Nicolini Andrea Rossi Federico Cotana Franco
author_sort	Filipponi Mirko
title	Injection of CO2/N2 gaseous mixtures into gas hydrates to contemporary perform CH4 recovery and CO2 storage
title_short	Injection of CO2/N2 gaseous mixtures into gas hydrates to contemporary perform CH4 recovery and CO2 storage
title_full	Injection of CO2/N2 gaseous mixtures into gas hydrates to contemporary perform CH4 recovery and CO2 storage
title_fullStr	Injection of CO2/N2 gaseous mixtures into gas hydrates to contemporary perform CH4 recovery and CO2 storage
title_full_unstemmed	Injection of CO2/N2 gaseous mixtures into gas hydrates to contemporary perform CH4 recovery and CO2 storage
title_sort	injection of co2/n2 gaseous mixtures into gas hydrates to contemporary perform ch4 recovery and co2 storage
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/01fccdb87b3044f595640f8b80cda4ce
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Injection of CO2/N2 gaseous mixtures into gas hydrates to contemporary perform CH4 recovery and CO2 storage

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