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DC Field | Value | Language |
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dc.citation.endPage | 6089 | - |
dc.citation.number | 7 | - |
dc.citation.startPage | 6081 | - |
dc.citation.title | ENERGY & FUELS | - |
dc.citation.volume | 35 | - |
dc.contributor.author | Lee, Joonseop | - |
dc.contributor.author | Ko, Gyeol | - |
dc.contributor.author | Mok, Junghoon | - |
dc.contributor.author | Seo, Yongwon | - |
dc.date.accessioned | 2023-12-21T16:07:03Z | - |
dc.date.available | 2023-12-21T16:07:03Z | - |
dc.date.created | 2021-06-02 | - |
dc.date.issued | 2021-04 | - |
dc.description.abstract | The complex phase behaviors and structural coexistence of natural gas hydrates (NGHs) that contain large-molecule guest substances (LMGSs) were examined for their significance in the exploration and exploitation of NGHs as well as natural gas storage and transportation. Methylcyclopentane (MCP) and 2,2-dimethylbutane [neohexane (NH)] were chosen as LMGSs, and the simplest composition of NGHs and natural gas was simulated by a gas mixture of CH4 (90%) + C2H6 (10%). The coexistence of structure II (sII) and structure H (sH) hydrates in the CH4 + C2H6 + LMGS + water mixtures was revealed by C-13 nuclear magnetic resonance (NMR) and powder X-ray diffraction (PXRD). CH4 and LMGSs were captured in sH, whereas CH4 and C2H6 were enclathrated in sII. Endothermic heat flow curves, which were obtained by a differential scanning calorimeter (DSC), and pressure (P)-temperature (T) traces exhibited two-step dissociation of formed gas hydrates (sH dissociation followed by sII dissociation). The experimental results for the PXRD patterns, C-13 NMR spectra, phase equilibria, DSC heating curves, and P-T traces clearly demonstrated that the CH4 (90%) + C2H6 (10%) + LMGS + water mixtures formed both sII hydrates and sH hydrates and that the final hydrate structure at equilibrium dissociation points was sII. | - |
dc.identifier.bibliographicCitation | ENERGY & FUELS, v.35, no.7, pp.6081 - 6089 | - |
dc.identifier.doi | 10.1021/acs.energyfuels.0c04372 | - |
dc.identifier.issn | 0887-0624 | - |
dc.identifier.scopusid | 2-s2.0-85103469129 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/52964 | - |
dc.identifier.url | https://pubs.acs.org/doi/10.1021/acs.energyfuels.0c04372 | - |
dc.identifier.wosid | 000636902800040 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Complex Phase Behaviors and Structural Coexistence of Natural Gas Hydrates Containing Large-Molecule Guest Substances | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels; Engineering, Chemical | - |
dc.relation.journalResearchArea | Energy & Fuels; Engineering | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | STRUCTURE-H HYDRATE | - |
dc.subject.keywordPlus | CARBON-DIOXIDE | - |
dc.subject.keywordPlus | CLATHRATE HYDRATE | - |
dc.subject.keywordPlus | EQUILIBRIUM DATA | - |
dc.subject.keywordPlus | CH4 RECOVERY | - |
dc.subject.keywordPlus | STRUCTURE-II | - |
dc.subject.keywordPlus | METHANE | - |
dc.subject.keywordPlus | ENERGY | - |
dc.subject.keywordPlus | STORAGE | - |
dc.subject.keywordPlus | KINETICS | - |
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