Methane storage in water frameworks: Self-preservation of methane hydrate pellets formed from NaCl solutions
The use of methane (CH4) hydrate as a CH4 or natural gas storage medium offers an efficient and green source of energy. In this study, we produced CH4 hydrate pellets containing NaCl at up to 2.7 wt%, and storage tests were performed to investigate the stability of CH4 hydrates with NaCl at 253 or 2...
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ftrepec:oai:RePEc:eee:appene:v:230:y:2018:i:c:p:86-93 2024-04-14T08:14:52+00:00 Methane storage in water frameworks: Self-preservation of methane hydrate pellets formed from NaCl solutions Takeya, Satoshi Mimachi, Hiroko Murayama, Tetsuro http://www.sciencedirect.com/science/article/pii/S030626191831170X unknown http://www.sciencedirect.com/science/article/pii/S030626191831170X article ftrepec 2024-03-19T10:29:50Z The use of methane (CH4) hydrate as a CH4 or natural gas storage medium offers an efficient and green source of energy. In this study, we produced CH4 hydrate pellets containing NaCl at up to 2.7 wt%, and storage tests were performed to investigate the stability of CH4 hydrates with NaCl at 253 or 248 K under ambient pressure. Based on assessing mass variations and powder X-ray diffraction analyses, it was determined that the dissociation rate of the hydrate greatly depends on the storage temperature. Below the eutectic point of the water-NaCl system, the hydrate exhibited self-preservation, while specimens readily dissociated at 253 K. The experimental results obtained in this study elucidate the effects of the NaCl solution on the self-preservation of CH4 hydrates, and allow a kinetic model for this self-preservation phenomenon to be proposed. The results indicate that CH4 hydrate pellets formed from sea water are a viable CH4 storage and transportation media below the eutectic temperature. Aqueous solution; Clathrate; Dissociation; Gas hydrate; Gas storage; Sea water; Article in Journal/Newspaper Methane hydrate RePEc (Research Papers in Economics) |
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RePEc (Research Papers in Economics) |
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The use of methane (CH4) hydrate as a CH4 or natural gas storage medium offers an efficient and green source of energy. In this study, we produced CH4 hydrate pellets containing NaCl at up to 2.7 wt%, and storage tests were performed to investigate the stability of CH4 hydrates with NaCl at 253 or 248 K under ambient pressure. Based on assessing mass variations and powder X-ray diffraction analyses, it was determined that the dissociation rate of the hydrate greatly depends on the storage temperature. Below the eutectic point of the water-NaCl system, the hydrate exhibited self-preservation, while specimens readily dissociated at 253 K. The experimental results obtained in this study elucidate the effects of the NaCl solution on the self-preservation of CH4 hydrates, and allow a kinetic model for this self-preservation phenomenon to be proposed. The results indicate that CH4 hydrate pellets formed from sea water are a viable CH4 storage and transportation media below the eutectic temperature. Aqueous solution; Clathrate; Dissociation; Gas hydrate; Gas storage; Sea water; |
format |
Article in Journal/Newspaper |
author |
Takeya, Satoshi Mimachi, Hiroko Murayama, Tetsuro |
spellingShingle |
Takeya, Satoshi Mimachi, Hiroko Murayama, Tetsuro Methane storage in water frameworks: Self-preservation of methane hydrate pellets formed from NaCl solutions |
author_facet |
Takeya, Satoshi Mimachi, Hiroko Murayama, Tetsuro |
author_sort |
Takeya, Satoshi |
title |
Methane storage in water frameworks: Self-preservation of methane hydrate pellets formed from NaCl solutions |
title_short |
Methane storage in water frameworks: Self-preservation of methane hydrate pellets formed from NaCl solutions |
title_full |
Methane storage in water frameworks: Self-preservation of methane hydrate pellets formed from NaCl solutions |
title_fullStr |
Methane storage in water frameworks: Self-preservation of methane hydrate pellets formed from NaCl solutions |
title_full_unstemmed |
Methane storage in water frameworks: Self-preservation of methane hydrate pellets formed from NaCl solutions |
title_sort |
methane storage in water frameworks: self-preservation of methane hydrate pellets formed from nacl solutions |
url |
http://www.sciencedirect.com/science/article/pii/S030626191831170X |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_relation |
http://www.sciencedirect.com/science/article/pii/S030626191831170X |
_version_ |
1796313115653046272 |