| 학회 |
한국화학공학회 |
| 학술대회 |
2018년 가을 (10/24 ~ 10/26, 대구 EXCO) |
| 권호 |
24권 2호, p.1571 |
| 발표분야 |
에너지 환경(Energy and Environment) |
| 제목 |
Effect of alkali and alkaline earth metal on Co/CeO2 catalyst for high temperature water-gas shift reaction using waste derived synthesis gas |
| 초록 |
We prepared a series of alkali (Na and K) and alkaline earth metal (Ca and Ba) promoted Co/CeO2 catalysts to investigate the effect of the promoter on the stability of the catalyst in the high-temperature water-gas shift (WGS) reaction using waste derived synthesis gas. The activity results revealed the higher performance by the alkali metal-doped catalysts than alkaline earth metal-doped catalysts in the temperature range of 400–550 °C. However, a stability result showed that alkaline earth metal-doped catalysts exhibit the higher stability (XCO=∼85%, 50 h) than alkali metal-doped catalysts. Transmission electron microscopy (TEM) and X-ray diffraction (XRD) results show that the higher stability of the Ba- and Ca- doped Co/CeO2 catalyst was caused by the strong resistance to sintering of metallic cobalt nanoparticles showing a relatively small crystallite size of metallic cobalt compared to the alkali metal promoted catalysts after water-gas shift reaction. This result shows that alkaline earth metal-doped Co/CeO2 are promising catalysts for use in the industrial high-temperature water-gas shift reaction. |
| 저자 |
박호룡, 신현택, 홍가람, 홍예진, 석옥산, 김경진, 노현석
|
| 소속 |
연세대 |
| 키워드 |
에너지 환경 |
| E-Mail |
|
| 원문파일 |
초록 보기 |
