| 학회 |
한국공업화학회 |
| 학술대회 |
2017년 가을 (11/08 ~ 11/10, 부산 벡스코(BEXCO)) |
| 권호 |
21권 2호 |
| 발표분야 |
우수논문(구두)_석사과정 |
| 제목 |
Hydrogen production from waste-derived synthesis gas through high temperature water-gas shift reaction using Co-CeO2 catalyst: An optimization of cobalt loading |
| 초록 |
In our previous research, Co-CeO2 catalyst showed high catalytic performance compared to bulk Co3O4 in the high temperature water-gas shift (WGS) reaction. To enhance the performance of Co-CeO2 catalyst, we varied the cobalt loading (10, 15, 25, 35 wt.%) to determine the optimum loading of cobalt in Co-CeO2 catalyst. Among the prepared catalysts, 15% Co-CeO2 catalyst showed the most stable activity (50h, 400 oC) without any side reaction (methanation) even at severe reaction conditions; a high gas hourly space velocity (142,663 h-1) and a high CO concentration (~38%) in the waste-derived synthesis gas. The remarkable performance of 15% Co–CeO2 catalyst is mainly due to the higher dispersion of cobalt atoms on the catalyst surface. The WGS activity is also affected by the oxygen vacancy concentration. |
| 저자 |
김경진, 이열림, 장원준, 심재오, 전경원, 나현석, 김학민, 유성연, 안선용, 노현석
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| 소속 |
연세대 |
| 키워드 |
Water gas shift; Co–CeO2; Co loading; Dispersion
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| E-Mail |
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