| 학회 |
한국화학공학회 |
| 학술대회 |
2005년 가을 (10/21 ~ 10/22, 인하대학교) |
| 권호 |
11권 2호, p.2180 |
| 발표분야 |
에너지/환경 |
| 제목 |
Performance of Ni/Hexaaluminate Catalyst in CO2 Reforming of CH4 |
| 초록 |
CO2 reforming of CH4 has drawn much attention due to the potential significance as an alternative to the conventional steam reforming. The objective of this study is to improve the performance of Ni catalyst by using La-hexaaluminate, which has been known to be the excellent catalyst support for the high-temperature catalytic combustion, as a support of Ni. At the beginning of the reaction, CH4 conversion of Ni(20 wt%)/La-hexaaluminate is larger than the case of Ni(20 wt%)/Al2O3. After 24 h, the catalytic activity of the former is slightly decreased, but the higher activity compared to that of Ni(20 wt%)/Al2O3 is still maintained. TGA results of both catalysts designates that the amount of coke deposited on the catalyst surface is much larger in the case of Ni/Al2O3 and the oxidation completed at lower temperature in the case of the former catalyst. These above results designate that the La-hexaaluminate is preferable to commercial Al2O3 for the use as a support of the reforming catalysts. We also investigated the coke deposition and the phase transformation of Ni catalysts of various metal loadings, catalyst support, and reaction periods by using TPO, XRD and SEM. |
| 저자 |
김희연, 이승재, 정남조, 류인수, 강성규, 송광섭
|
| 소속 |
한국에너지기술(연) |
| 키워드 |
CO2 reforming; CH4; Ni/hexaaluminate
|
| E-Mail |
|
| 원문파일 |
초록 보기 |
