| 학회 |
한국화학공학회 |
| 학술대회 |
2008년 가을 (10/23 ~ 10/24, 부산 BEXCO) |
| 권호 |
14권 2호, p.3463 |
| 발표분야 |
촉매 및 반응공학 |
| 제목 |
Effects of preparation route on catalytic properties of iron-based catalysts for the Fischer-Tropsch synthesis |
| 초록 |
The Fischer-Tropsch synthesis (FTS) has received much attention as an essential part of the coal-to-liquid process. Iron-based catalysts are preferred for this process due to their high activity and low cost. Furthermore, the use of iron-based catalysts has a considerable merit for the FTS with low H2/CO ratio synthesis gas from coal gasification because of their potential activity for the water-gas shift reaction. In this study, we carried out the FTS over a series of precipitated iron-based catalysts at 250°C and 3.0 MPa. The catalysts were prepared by two comparative ways, i.e., pre-incorporation of SiO2 and post-incorporation of SiO2, respectively. The catalysts with pre-incorporation of SiO2 showed higher catalytic activity for the FTS than those with post-incorporation of SiO2 or without incorporation of SiO2. Catalyst characterization revealed that the iron-based catalysts showed enhanced dispersion of iron-based oxides when the SiO2 was pre-incorporated before co-precipitation. We attribute the high activity of the catalysts with pre-incorporation of SiO2 to the enhanced dispersion of iron-based oxides. |
| 저자 |
천동현, 김학주, 양정훈, 이호태, 양정일, 정 헌
|
| 소속 |
한국에너지기술(연) |
| 키워드 |
Fischer-Tropsch synthesis; Iron-based catalysts; Coal-to-liquid
|
| E-Mail |
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| VOD |
VOD 보기 |
| 원문파일 |
초록 보기 |
