| 학회 | 한국화학공학회 |
| 학술대회 | 2021년 봄 (04/21 ~ 04/23, 부산 BEXCO) |
| 권호 | 27권 1호, p.1021 |
| 발표분야 | 촉매 및 반응공학 |
| 제목 | CO and CO 2 methanation over Co/CeO 2 catalysts |
| 초록 | In order to tackle the high CO 2 atmospheric level, which mainly causes the numeral urgent environmental issues, active works are now undergoing on CO 2 utilization as the initial carbon source. One of them is CO 2 methanation to synthesize methane, which can be then stored and transported through a well-developed gas grid. Since CO 2 methanation is an exothermic and thermodynamically limited reaction, active catalysts at low temperature should be developed. Although cobalt is one of the active methanation catalyst candidates, its high price is the obstacle against its industrial applications. Thus, the low cobalt loading is plausible. Furthermore, CeO 2 is considered as a promising support due to its redox properties. Additionally, the surface oxygen vacancy of CeO 2 support can contribute to the catalytic performance. In this study, two typical methods as co-precipitation and wet-impregnation methods were used. The pretreatment conditions, particularly calcination temperature, were compared. The co-precipitated Co-CeO 2 catalyst calcinced at 300 ℃ is found to show the best performance among the prepared catalysts due to the large surface area and small CeO 2 crystallite size. |
| 저자 | NGUYEN THUY HA , 박은덕 |
| 소속 | 아주대 |
| 키워드 | Catalyst |
| VOD | VOD 보기 |
| 원문파일 | 초록 보기 |
