环己烷气相氧化脱氢催化剂的研究进展

为了尽可能多地获得环己烯和充分利用苯选择加氢反应的副产物环己烷,环己烷氧化脱氢反应在近 20 年内得到迅速发展.环己烷氧化脱氢反应催化剂体系的选择对于获得较高的环己烯产率和选择性、较低的氧化脱氢反应温度以及最优的反应路径尤为重要.详细阐述了阳离子沸石催化剂、复合金属氧化物催化剂以及贵金属丝网催化剂等在环己烷氧化脱氢制取...

Research Progress of Catalysts for the Gas-Phase Oxidative Dehydrogenation of Cyclohexane to Cyclohexene

The oxidative dehydrogenation of cyclohexane has been greatly developed for over 20 years in order to make use of the by-product from the selective hydrogenation of benzene and to obtain the high value product cyclohexene.For obtaining a high yield and selectivity for cyclohexene,lower reaction temperature and optimal reaction pathway,the option of catalyst is very important.So this review presented the catalytic performance,the reaction conditions and the reaction mechanism of the oxidative dehydrogenation of cyclohexane over the zeolite catalysts,metal oxide catalysts and the single-gauze catalysts including noble metal in detail.Moreover,the active center or the active species of the vanadium-based,the molybdenum-based and the nickel-based oxide catalysts were clarified.Suggestions for further studies had been proposed to find out a suitable catalyst to produce cyclohexene as much as possible for the industrialization purpose.