| 학회 | 한국화학공학회 |
| 학술대회 | 2010년 가을 (10/21 ~ 10/22, 대전컨벤션센터) |
| 권호 | 16권 2호, p.2321 |
| 발표분야 | 환경 |
| 제목 | High Pressure Adsorption of Pure CO2, CH4 andCO2/CH4 Mixture on Korean Coal |
| 초록 | ECBM (Enhanced Coal Bed Methane) recovery process can be used to reduce greenhouse gas emission through the disposal of carbon dioxide into coal seams. The production of methane can also be accelerated with CO2 sequestration since CO2 competitively adsorb on coals by replacing pre-adsorbed CH4. Therefore, knowledge of pure and mixture gas adsorption behavior on coal is necessary for the accurate assessment of ECBM operation. Pure CO2, CH4 and their binary mixture adsorption experiments were carried out on coal (Kyungdong coal, South Korea). The volumetric method was used coupled with gas chromatographic analysis. The adsorption was measured at 318K and 338K in the range from 0 to 150 atm on dry and wet coals, respectively. In the case of mixture gas, the feed gas composition was around 80 mol% CO2. Since coal swells by high pressure CO2 adsorption, excess adsorption was presented by taking the swelling into consideration. Moisture effect was considered in evaluating sorption capacity of wet coal. Adsorption isotherms of mixture gas were lying on between pure gas isotherms, and preferential adsorption of CO2 could be confirmed. |
| 저자 | 김혜정, 이현희, 이창하 |
| 소속 | 연세대 |
| 키워드 | carbon dioxide; methane; coal; adsorption |
| 원문파일 | 초록 보기 |
