| 학회 |
한국화학공학회 |
| 학술대회 |
2019년 가을 (10/23 ~ 10/25, 대전컨벤션센터) |
| 권호 |
25권 2호, p.1691 |
| 발표분야 |
열역학 (Thermodynamics) |
| 제목 |
Experimental investigation of replacement mechanism occurring in sII (CH4 + C3H8) hydrate through flue gas injection |
| 초록 |
Because of the tremendous amount, natural gas hydrates (NGHs) have been regarded as future energy resources. Previous studies to produce natural gas were focused on dissociation-based methods which could induce the geological hazards. The replacement process has been investigated which has triple advantages of CH4 production, CO2 sequestration and geological stability. In this study, flue gas (CO2 (20%) + N2 (80%)) was injected into the sII (CH4 +C3H8) hydrates to examine its influence on efficiency and structural transition. The efficiency was measured by GC and the hydrate structure was analyzed by 13C NMR and PXRD. The results showed that the efficiency using flue gas was lower than that using pure CO2. NMR spectra and PXRD patterns indicated the iso-structural replacement. The composition of replaced hydrates demonstrated that preferential N2 occupation greatly contributed to iso-structural replacement. The experimental results are helpful for a better understanding of the replacement mechanism occurring in sII hydrates when flue gas is injected. |
| 저자 |
최원중1, 목정훈2, 이요한3, 서용원2
|
| 소속 |
1UNIST, 2Ulsan National Institute of Science and Technology, 3Colorado School of Mines |
| 키워드 |
열역학 |
| E-Mail |
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| VOD |
VOD 보기 |
| 원문파일 |
초록 보기 |
