화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2007년 가을 (10/26 ~ 10/27, 한국과학기술원)
권호 13권 2호, p.2413
발표분야 촉매 및 반응공학
제목 MgO Promotion of Ni/Al2O3 Catalysts for the Control of Coke on Combined Reforming of Methane
초록 The combined steam and carbon dioxide reforming of methane has recently been carried out for the control of H2/CO ratios in synthesis gas production. Especially, for application of oxo-synthesis and Fischer-Tropsch process, it is necessary to produce synthesis gas with a H2/CO ratio of 2. In this reforming process, Ni based catalysts have been used as promising catalysts due to high activity comparable to expensive noble metal catalysts. Generally, the deactivation of these catalysts is mainly attributed to coke deposition and metal sintering in severe operating conditions.
In this study, Ni/Al2O3 catalyst has been promoted with basic metal oxide (MgO) to enhance the coke resistance with a good thermal stability due to the formation of stable MgAl2O4 spinel phase. MgO-promoted Ni/Al2O3 catalyst was prepared by an incipient wetness method and characterized by XRD, BET and H2-TPR. The coke amount was measured quantitatively by TGA analysis.
저자 구기영1, 노현석2, 서유택2, 서동주2, 정운호2, 서용석2, 윤왕래2, 박승빈1
소속 1한국과학기술원, 2한국에너지기술(연)
키워드 combined reforming; Ni catalyst; MgO; coke
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