화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2006년 가을 (10/27 ~ 10/28, 고려대학교)
권호 12권 2호, p.1840
발표분야 에너지/환경
제목 Combined Reforming of Methane over Nano-sized Ni Catalysts Supported on MgO-Al2O3
초록 Combined steam and carbon dioxide reforming of methane has come to attention on account of the fact that adequate H2/CO ratios in synthesis gas can be controlled for application of oxo-synthesis and Fischer-Tropsch process. In this study, H2/CO ratio of 2 was achieved in combined reforming of methane over Ni/MgAl2O4. The Ni/MgAl2O4 catalyst was prepared by an incipient wetness method and characterized by XRD, BET and H2-TPR. The reaction was performed with the ratio of (H2O+CO2)/CH4 of 1.2 at 800 oC. To optimize the condition of reforming, the ratio of H2O/CO2 as oxidative species was changed from 2 to 3. Under the condition of GHSV = 132,702 ml/h gcat, Ni/MgAl2O4 catalyst exhibited good catalytic activity and stability compared with commercial catalyst (Sud-chemie). In addition, the effect of pre-calcination temperature on the catalytic stability was investigated at GHSV = 265,404 ml/h gcat. The catalytic stability increases with an increase of pre-calcination temperature.
저자 구기영1, 노현석2, 서동주2, 서유택2, 서용석2, 정진혁3, 이득기4, 박승빈1, 윤왕래2
소속 1한국과학기술원, 2한국에너지기술(연), 3경북대, 4광주대
키워드 combined reforming; synthesis gas; Ni/MgAl2O4 catalyst
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