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DC Field | Value | Language |
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dc.citation.endPage | 47 | - |
dc.citation.startPage | 43 | - |
dc.citation.title | JOURNAL OF CHEMICAL THERMODYNAMICS | - |
dc.citation.volume | 117 | - |
dc.contributor.author | Kim, Eunae | - |
dc.contributor.author | Ko, Gyeol | - |
dc.contributor.author | Seo, Yongwon | - |
dc.date.accessioned | 2023-12-21T21:11:48Z | - |
dc.date.available | 2023-12-21T21:11:48Z | - |
dc.date.created | 2017-07-10 | - |
dc.date.issued | 2018-02 | - |
dc.description.abstract | C2F6 (hexafluoroethane, R116) is a fluorinated gas (F-gas) widely used in semiconductor industries, which also has a high global warming potential and a long atmospheric lifetime. In this study, the thermodynamic and structural characteristics of the C2F6 +N2 gas hydrates were investigated for gas hydrate-based C2F6 separation from emission sources. This experiment measured the three-phase (hydrate, liquid water, and vapor [H-LW-V]) equilibria of ternary C2F6 (10, 20, 40, 60, and 80%)+N2 +H2O systems and indicated the possible existence of hydrate azeotropes at certain temperature ranges. Powder X-ray diffraction (PXRD) revealed that the ternary C2F6 +N2 +H2O systems form structure II (sII) hydrates (Fd3m) for all C2F6 concentrations considered in this study. The pressure-composition diagram obtained at two different temperatures (275.15K and 279.15K) demonstrated that C2F6 is highly enriched in the hydrate phase at 275.15K, whereas at 279.15K, the C2F6 +N2 +H2O systems have a hydrate azeotrope where the composition of the hydrate phase is the same as the composition of the vapor phase. The overall experimental results clearly indicate that hydrate-based C2F6 separation is thermodynamically feasible and the higher separation efficiency is achievable at lower temperature ranges. | - |
dc.identifier.bibliographicCitation | JOURNAL OF CHEMICAL THERMODYNAMICS, v.117, pp.43 - 47 | - |
dc.identifier.doi | 10.1016/j.jct.2017.06.016 | - |
dc.identifier.issn | 0021-9614 | - |
dc.identifier.scopusid | 2-s2.0-85021073616 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/23008 | - |
dc.identifier.url | http://www.sciencedirect.com/science/article/pii/S0021961417302239?via%3Dihub | - |
dc.identifier.wosid | 000418494200007 | - |
dc.language | 영어 | - |
dc.publisher | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD | - |
dc.title | Phase equilibria and azeotropic behavior of C2F6 + N2 gas hydrates | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Thermodynamics; Chemistry, Physical | - |
dc.relation.journalResearchArea | Thermodynamics; Chemistry | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Azeotrope | - |
dc.subject.keywordAuthor | C2F6 | - |
dc.subject.keywordAuthor | Gas hydrate | - |
dc.subject.keywordAuthor | Gas separation | - |
dc.subject.keywordAuthor | Phase equilibria | - |
dc.subject.keywordPlus | GAS HYDRATE | - |
dc.subject.keywordPlus | MIXTURES | - |
dc.subject.keywordPlus | CO2 | - |
dc.subject.keywordPlus | DESALINATION | - |
dc.subject.keywordPlus | RECOVERY | - |
dc.subject.keywordPlus | PROPANE | - |
dc.subject.keywordPlus | DIOXIDE | - |
dc.subject.keywordPlus | STORAGE | - |
dc.subject.keywordPlus | CHF3 | - |
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