| 학회 |
한국화학공학회 |
| 학술대회 |
2018년 봄 (04/25 ~ 04/27, 창원컨벤션센터) |
| 권호 |
24권 1호, p.454 |
| 발표분야 |
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| 제목 |
A study on the effect of alkali and alkaline earth metal promoter on Co/CeO2 catalyst for the high temperature water-gas shift reaction using waste derived synthesis gas |
| 초록 |
The alkali (Na and K) and alkaline earth metal (Ca and Ba) promoted Co/CeO2 catalysts were prepared and tested for the high temperature water-gas shift (HT-WGS) reaction using waste derived synthesis gas. Interestingly, alkali metal promoted catalysts deactivated rapidly compared to alkaline earth metal promoted catalysts. Alkaline earth metal promoted catalysts showed relatively higher stability (＞ 50 h) even at a very high gas hourly space velocity of 143,000 h−1. X−ray diffraction (XRD) and transmission electron microscopy (TEM) results reveal that the higher stability of the alkaline earth metal promoted catalysts was due to the strong resistance to sintering, showing a relatively small crystallite size of metallic cobalt compared to the alkali metal promoted catalysts after WGS reaction. |
| 저자 |
이열림, 김경진, 장원준, 심재오, 전경원, 나현석, 김학민, 유성연, 안선용, 김범준, 조재완, 노현석
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