| 학회 |
한국화학공학회 |
| 학술대회 |
2021년 가을 (10/27 ~ 10/29, 광주 김대중컨벤션센터) |
| 권호 |
27권 2호, p.2157 |
| 발표분야 |
촉매 및 반응공학 |
| 제목 |
Effects of H2 partial pressure in syngas activation on the catalytic performance of iron-based catalysts for Fischer-Tropsch synthesis |
| 초록 |
Low-temperature Fischer-Tropsch synthesis (LT-FTS) is an attractive technology to convert syngas (CO + H2) into C5+ hydrocarbons. Precipitated iron-based catalysts are highly promising for the LT-FTS. In general, the as-prepared precipitated iron-based catalysts are composed of hematite (α-Fe2O3), an inactive phase for FTS. Therefore they need to be subjected to a proper activation pre-treatment in a flow of CO or syngas to change the hematite to active iron carbides for FTS. Several researchers have investigated the effects of H2 partial pressure in syngas activation on the performance of conventional hematite-based LT-FTS catalysts. It is generally accepted that the higher H2 partial pressure during the activation, the lower the catalytic activity in the FTS, due to the suppressed formation of iron carbides. In this study, we prepared ferrihydrite-based catalysts (FeOOH·nH2O) and investigated the influence of pressure and H2/CO ratio in syngas activation on the catalyst performance. We found unique activation behavior of ferrihydrite-based catalysts, that is, positive dependence of catalytic performance on the H2 partial pressure in the syngas activation. |
| 저자 |
이현송1, 임근배2, Deviana Deviana2, 이경우2, 윤민혜2, 신규철3, 천동현2
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| 소속 |
1KIER / 경북대, 2KIER, 3경북대 |
| 키워드 |
촉매 |
| E-Mail |
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| 원문파일 |
초록 보기 |
