| 학회 |
한국화학공학회 |
| 학술대회 |
2021년 가을 (10/27 ~ 10/29, 광주 김대중컨벤션센터) |
| 권호 |
27권 2호, p.1246 |
| 발표분야 |
[주제별 심포지엄] 탄소 중립 규현을 위한 분리기술 심포지엄(분리기술부문위원회) |
| 제목 |
Clathrate hydrate-based CO2 capture and storage technologies |
| 초록 |
Clathrate hydrates are solid inclusion compounds formed by the hydrogen bonding of water molecules at high pressure and low temperature conditions. The host water molecules form cage frameworks of clathrate hydrates, whereas the small gas molecules are captured in the empty cages. Clathrate-based gas separation has attracted increasing attention and could be an alternative to the existing post-combustion or pre-combustion gas separation technologies. In this study, semi-clathrates formed by tetra n-butyl ammonium chloride (TBAC) were used for capturing CO2 from post-combustion flue gas and pre-combustion fuel gas mixtures. The thermodynamic stability, gas uptakes, and CO2 compositions for TBAC semi-clathrates were closely investigated to confirm the separation efficiency of clathrate-based CO2 capture. In this study, the CH4 - CO2 replacement occurring in different gas hydrate structures for energy production and CO2 sequestration was also examined with a primary focus on phase behaviors and structural transformation. The initial and replaced hydrates were analyzed via 13C NMR and PXRD to examine cage-dependent guest distributions and possible structural transition. |
| 저자 |
서용원 |
| 소속 |
울산과학기술원 |
| 키워드 |
clathrate; CO2 capture and storage; separation
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| E-Mail |
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| 원문파일 |
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