dc.citation.conferencePlace |
KO |
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dc.citation.number |
2 |
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dc.citation.startPage |
2062 |
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dc.citation.title |
한국화학공학회 2016년도 가을학술대회 |
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dc.citation.volume |
22 |
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dc.contributor.author |
이요한 |
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dc.contributor.author |
최원중 |
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dc.contributor.author |
서용원 |
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dc.date.accessioned |
2023-12-19T20:06:36Z |
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dc.date.available |
2023-12-19T20:06:36Z |
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dc.date.created |
2016-12-14 |
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dc.date.issued |
2016-10-20 |
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dc.description.abstract |
The CH4-CO2 replacement occurring in natural gas hydrates has attracted significant attention due to its double function for CH4 recovery and CO2 sequestration. This study examined the influence of the CH4-CO2 replacement occurring in the CH4 (90%) + C3H8 (10%) hydrate on the hydrate structure and dissociation enthalpy (ΔHd). The crystalline structure of gas hydrates before and after replacement using CO2 was investigated using powder X-ray diffractometer (PXRD). In addition, 13C NMR was adopted in order to identify the cage-dependent guest molecule distribution in the gas hydrates before and after replacement with CO2. The composition of the hydrate phase was measured using a gas chromatograph. A gradual increase in the extent of the replacement was observed as the driving force (ΔPCO2) increased. A high-pressure micro-differential scanning calorimeter (HP μ-DSC) revealed that the ΔHd values of the hydrates after replacement with CO2 were decreased with large variation depending on ΔPCO2, comparing with those of initial CH4 + C3H8 hydrates. |
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dc.identifier.bibliographicCitation |
한국화학공학회 2016년도 가을학술대회, v.22, no.2, pp.2062 |
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dc.identifier.uri |
https://scholarworks.unist.ac.kr/handle/201301/40656 |
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dc.language |
영어 |
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dc.publisher |
한국화학공학회 |
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dc.title |
Structure Identification and Dissociation Enthalpy Measurement of the CH4 + C3H8 Hydrate Replaced by CO2 |
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dc.type |
Conference Paper |
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dc.date.conferenceDate |
2016-10-19 |
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