Dissociation heat of mixed-gas hydrate composed of methane and ethane
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- HACHIKUBO Akihiro
- New Energy Resources Research Center, Kitami Institute of Technology
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- KIDA Masato
- Methane Hydrate Research Center, National Institute of Advanced Industrial Science and Technology,
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- SAKAGAMI Hirotoshi
- New Energy Resources Research Center, Kitami Institute of Technology
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- SHOJI Hitoshi
- New Energy Resources Research Center, Kitami Institute of Technology
Bibliographic Information
- Other Title
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- メタン・エタンからなる混合ガスハイドレートの解離熱
- メタン エタン カラ ナル コンゴウ ガスハイドレート ノ カイリ ネツ
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Description
The dissociation heat of gas hydrates is one of the important parameters that control the formation/dissociation speed of the gas hydrate. We investigated the effect of the ethane concentration on the dissociation heat of the mixed-gas (methane and ethane) hydrate. The dissociation heat of the mixed-gas hydrate [kJ mol-1] was within the range between the dissociation heat of pure methane hydrate and that of ethane hydrate, and it increased with the ethane concentration. Only several % of ethane composition was quite effective to increase the dissociation heat. The hydration number, which changed according to the crystal structure (sI/sII hydrates), determined the dissociation heat during the transition from hydrate to gas and water. The dissociation heat of the mixed-gas hydrate [kJ kg-1] was 6-30 % greater than that of pure methane and ethane hydrates during the transition from hydrate to gas and ice, and 3-8% greater during the transition from hydrate to gas and water.
Journal
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- Journal of the Japanese Society of Snow and Ice
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Journal of the Japanese Society of Snow and Ice 71 (5), 341-351, 2009
The Japanese Society of Snow and Ice
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Keywords
Details 詳細情報について
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- CRID
- 1390006154023309312
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- NII Article ID
- 10025591453
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- NII Book ID
- AN00131221
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- ISSN
- 18836267
- 03731006
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- NDL BIB ID
- 10438806
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed