CH4 - Flue gas replacement occurring in sH hydrates and its significance for CH4 recovery and CO2 sequestration
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- 作者：Yohan Leea ; Young-ju Seob ; Taewoong Ahnb ; Jaehyoung Leeb ; Joo Yong Leeb ; Se-Joon Kimb ; Yongwon Seoa ; ywseo@unist.ac.kr" class="auth_mail" title="E-mail the corresponding author
- 关键词：Gas hydrate ; Flue gas ; Replacement ; CO2 sequestration ; Structure H ; Dissociation enthalpy
- 刊名：Chemical Engineering Journal
- 出版年：2017
- 出版时间：15 January 2017
- 年：2017
- 卷：308
- 期：Complete
- 页码：50-58
- 全文大小：1658 K
文摘
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We experimentally verify the isostructural CH4 – flue gas replacement that occurs in sH hydrate.
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13C NMR spectroscopy reveals that the initial CH4 + NH hydrate does not undergo a structural transition during replacement.
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CO2 molecules preferentially occupy the medium 435663 cages during replacement.
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ΔHd values and heat flow monitoring using HP μ-DSC support the isostructural CH4 – flue gas replacement in sH hydrates.
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