Stable isotope of natural gas hydrates provides useful information of their gas sources. We
investigated the isotopic fractionation of gas molecules during the formation of synthetic gas
hydrates composed of methane and ethane. The gas hydrate samples were experimentally
prepared in a pressure cell and isotopic compositions (δ13C and δD) of both residual and hydratebound
gases were measured. δD of hydrate-bound molecules of methane and ethane hydrates was
several per mil lower than that of residual gas molecules in the formation processes, while there
was no difference in the case of δ13C. Effect of temperature on the isotopic fractionation was also
investigated and it was found that the fractionation was effective at low temperature.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:BVAU.2429/2693 |
| Date | 07 1900 |
| Creators | Hachikubo, Akihiro, Ozeki, Takahiro, Kosaka, Tomoko, Sakagami, Hirotoshi, Minami, Hirotsugu, Nunokawa, Yutaka, Takahashi, Nobuo, Shoji, Hitoshi, Kida, Masato, Krylov, Alexey |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | text |
| Rights | Hachikubo, Akihiro |
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