| 학회 |
한국화학공학회 |
| 학술대회 |
2016년 봄 (04/27 ~ 04/29, 부산 BEXCO) |
| 권호 |
22권 1호, p.1054 |
| 발표분야 |
촉매 및 반응공학 |
| 제목 |
Steam CO2 reforming of methane over La1-xSrxNiO3 perovskite catalysts |
| 초록 |
La1-xSrxNiO3 perovskite catalysts were prepared by EDTA-cellulose method and characterized by TPR, N2 phsysorption, TGA, XRD, TEM and SEM. The effect of promoting a perovskite (LaNiO3) catalyst with different amounts of Sr (0.1 - 0.5) to produce syngas via steam CO2 reforming of methane was investigated. Steam CO2 reforming of methane over the prepared catalysts carried out in a fixed bed reactor system under 900 °C, 10 bar and GHSV of 3000h-1. It was found that the 0.1 mole Sr-promoted catalyst had higher conversion and showed higher performance in terms of resisting deactivation by coke formation. It was found that the effect of Sr on activity, selectivity and stability are driven by segregated phases generated by Sr due to the difference of ionic radius between La and Sr. The Sr substituted perovskite had high O2 mobility which led to higher gasification rates of carbonaceous species, resulting in higher H2 generation and preventing carbon formation of the catalyst. Time on stream studies showed that La0.9Sr0.1NiO3 is a potential candidate for steam CO2 reforming of methane to produce syngas. |
| 저자 |
양은혁1, 노영수2, 정재선2, 홍기훈2, 키쇼2, 문동주2
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| 소속 |
1UST / KIST, 2KIST |
| 키워드 |
기타 촉매분야 |
| E-Mail |
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| 원문파일 |
초록 보기 |
