Influence of pressure on the formation process of CH 4 hydrate in porous media below the freezing point
Abstract Natural gas hydrates are mainly stored in the pores of the sedimentary layer in permafrost regions, and the formation characters in porous media were particularly important for the exploitation and utilization of natural gas hydrates. So, it is essential to understand the formation process...
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crwiley:10.1002/ep.13601 2024-06-02T08:10:23+00:00 Influence of pressure on the formation process of CH 4 hydrate in porous media below the freezing point Zhang, Xuemin Li, Jinping Wu, Qingbai Wang, Jiaxian Wang, Yingmei Li, Yang National Natural Science Foundation of China 2021 http://dx.doi.org/10.1002/ep.13601 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ep.13601 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ep.13601 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Environmental Progress & Sustainable Energy volume 40, issue 4 ISSN 1944-7442 1944-7450 journal-article 2021 crwiley https://doi.org/10.1002/ep.13601 2024-05-03T11:00:35Z Abstract Natural gas hydrates are mainly stored in the pores of the sedimentary layer in permafrost regions, and the formation characters in porous media were particularly important for the exploitation and utilization of natural gas hydrates. So, it is essential to understand the formation process of methane hydrate in porous media below freezing point. In this study, the formation process of methane hydrate was studied in a closed system in porous media below freezing point. The results indicated that the initial pressure played an important role in the formation characteristics of methane hydrate in porous media below freezing point. The higher the initial pressure was, the larger the formation rate of methane hydrate. And the maximum formation rate attained 6.46 × 10 −4 mol/h when the initial pressure was 9.0 MPa under the same temperature and particle size conditions. Furthermore, the final conversion rate was larger at higher initial pressure and the final conversion rate attained 56.5% at an initial pressure of 9.0 MPa. Furthermore, the pressure disturbance could improve the formation process of methane hydrate and the final conversion rate was larger to some extent. The relevant results will provide a theoretical reference for natural gas hydrates exploitation. Article in Journal/Newspaper Methane hydrate permafrost Wiley Online Library Environmental Progress & Sustainable Energy 40 4 |
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Abstract Natural gas hydrates are mainly stored in the pores of the sedimentary layer in permafrost regions, and the formation characters in porous media were particularly important for the exploitation and utilization of natural gas hydrates. So, it is essential to understand the formation process of methane hydrate in porous media below freezing point. In this study, the formation process of methane hydrate was studied in a closed system in porous media below freezing point. The results indicated that the initial pressure played an important role in the formation characteristics of methane hydrate in porous media below freezing point. The higher the initial pressure was, the larger the formation rate of methane hydrate. And the maximum formation rate attained 6.46 × 10 −4 mol/h when the initial pressure was 9.0 MPa under the same temperature and particle size conditions. Furthermore, the final conversion rate was larger at higher initial pressure and the final conversion rate attained 56.5% at an initial pressure of 9.0 MPa. Furthermore, the pressure disturbance could improve the formation process of methane hydrate and the final conversion rate was larger to some extent. The relevant results will provide a theoretical reference for natural gas hydrates exploitation. |
author2 |
National Natural Science Foundation of China |
format |
Article in Journal/Newspaper |
author |
Zhang, Xuemin Li, Jinping Wu, Qingbai Wang, Jiaxian Wang, Yingmei Li, Yang |
spellingShingle |
Zhang, Xuemin Li, Jinping Wu, Qingbai Wang, Jiaxian Wang, Yingmei Li, Yang Influence of pressure on the formation process of CH 4 hydrate in porous media below the freezing point |
author_facet |
Zhang, Xuemin Li, Jinping Wu, Qingbai Wang, Jiaxian Wang, Yingmei Li, Yang |
author_sort |
Zhang, Xuemin |
title |
Influence of pressure on the formation process of CH 4 hydrate in porous media below the freezing point |
title_short |
Influence of pressure on the formation process of CH 4 hydrate in porous media below the freezing point |
title_full |
Influence of pressure on the formation process of CH 4 hydrate in porous media below the freezing point |
title_fullStr |
Influence of pressure on the formation process of CH 4 hydrate in porous media below the freezing point |
title_full_unstemmed |
Influence of pressure on the formation process of CH 4 hydrate in porous media below the freezing point |
title_sort |
influence of pressure on the formation process of ch 4 hydrate in porous media below the freezing point |
publisher |
Wiley |
publishDate |
2021 |
url |
http://dx.doi.org/10.1002/ep.13601 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ep.13601 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ep.13601 |
genre |
Methane hydrate permafrost |
genre_facet |
Methane hydrate permafrost |
op_source |
Environmental Progress & Sustainable Energy volume 40, issue 4 ISSN 1944-7442 1944-7450 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/ep.13601 |
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Environmental Progress & Sustainable Energy |
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40 |
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4 |
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