화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2015년 가을 (11/04 ~ 11/06, 제주국제컨벤션센터(ICCJEJU))
권호 19권 2호
발표분야 (국제협력) 우수 외국인 연구자 세션(Special Session for Outstanding Foreign Researchers Resident in Korea)
제목 Oxidative dehydrogenation of propane to propylene over alkali promoted mixed metal oxides using CO2 as Soft Oxidant
초록 Oxidative dehydrogenation of propane was studied intensively over Cr and Vanadium based catalysts under CO2. In the dehydrogenation of propane with CO2, different oxide materials were investigated as catalysts. Cr promoted catalysts with different loadings of Cr has been synthesized using MW and applied in the oxidative dehydrogenation of propane to propylene using CO2 as soft oxidant. Loading of chromium ranged from 1 to 5 wt % showing very high surface area. The present catalysts showed high activity (20%) and stability even after 8 hours of reaction. The ratio of Cr6+ and Cr3+ are the main reasons for the high activity. Alkali and alkaline earth metal are proved to activate CO2. The basic nature of these promoters activate COx and enhance the stability of the catalysts. The present study is based on the promotional effect of alkali and alkaline earth metals. Alkali promotion has improved the CO2 conversion by altering the acid base properties of the catalyst and stabilizing the redox nature.
저자 박상언, 모용환, Abhishek Burri
소속 인하대
키워드 ODH; CO2; soft oxidant; mixed metal oxide
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