| 학회 |
한국화학공학회 |
| 학술대회 |
2013년 봄 (04/24 ~ 04/26, 광주 김대중컨벤션센터) |
| 권호 |
19권 1호, p.551 |
| 발표분야 |
에너지 |
| 제목 |
Influence of preparation conditions on catalytic performance of Ni-MgO/ɣ-Al2O3 catalyst for selective CO methanation |
| 초록 |
Selective CO methanation in the presence of CO2 and H2 is an efficient strategy for CO removal, maintaining its concentration below 10 ppm in the reformate of a fuel processor for polymer electrolyte membrane fuel cells (PEMFC). To develop selective CO methanation catalysts performing above the desirable level in wide range of operating temperature, the high dispersion of the catalytic active sites is one of the most relevant factors. Thus, we have prepared Ni-MgO/ɣ-Al2O3 catalysts by deposition-precipitation methods varying precipitation pH and calcination temperatures for improving the dispersion of the Ni particles. The catalysts prepared under the different conditions have been characterized by X-ray diffraction, temperature-programmed reduction and H2 chemisorption. The influence of the preparation conditions on the performance of the prepared catalysts have been investigated over a wide temperature range 230 °C to 350 °C while maintaining a space velocity of 60,000 mL/h•gcat and the results have been compared with commercial Ni-based CO methanation catalysts. |
| 저자 |
이형주1, 김우현1, 구기영1, 설용건2, 윤왕래1
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| 소속 |
1한국에너지기술(연), 2연세대 |
| 키워드 |
selective CO methanation; Ni-based catalyst; deposition and precipitation method
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| E-Mail |
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| 원문파일 |
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