Oxidative dehydrogenation of butane over orthovanadates
作者： D Patel , PJ Andersen , HH Kung
DOI: 10.1016/0021-9517(90)90084-W
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摘要: Abstract The oxidative dehydrogenation of butane was studied over NdVO4, SmVO4, EuVO4, and Ba3(VO4)2 at 500 540°C. It found that NdVO4 SMVO4 were both quite active selective for dehydrogenation, but EUVO4 less although very active. products butenes, butadiene, carbon oxides, small amounts CZ C3 hydrocarbons. selectivities butenes SMVO4, mixed V-Mg-oxide, Mg3(VO4)2 to be the same, V-Mg-0 much more butadiene than other catalysts were. selective, its activity selectivity declined with time on stream due formation BaCO3. These oxides also showed different behaviors in temperature-programmed reduction reoxidation. observations can explained by a model relates redox behavior catalyst availability oxygen site thus catalytic behavior.
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sci-hub.se 参考文章(7)
K. R. Poeppelmeier, C. K. Chiang, D. O. Kipp, Synthesis of high-surface-area α-LiAlO2 Inorganic Chemistry. ,vol. 27, pp. 4523- 4524 ,(1988) , 10.1021/IC00298A002
MA Chaar, D Patel, MC Kung, HH Kung, Selective oxidative dehydrogenation of butane over VMgO catalysts Journal of Catalysis. ,vol. 105, pp. 483- 498 ,(1987) , 10.1016/0021-9517(87)90076-5
B HODNETT, Influence of the phosphorus/vanadium ratio on the solid state chemistry and redox properties of vanadium phosphate-based catalysts Journal of Catalysis. ,vol. 88, pp. 43- 53 ,(1984) , 10.1016/0021-9517(84)90048-4
K. Dyrek, M. Łabanowska, ESR and IR studies of propylene oxidation on V2O5-MoO3 at low temperatures Applied Catalysis. ,vol. 23, pp. 63- 67 ,(1986) , 10.1016/S0166-9834(00)81452-9
Fabrizio Cavani, Gabriele Centi, Italo Manenti, Ferruccio Trifiro, Catalytic conversion of C4 hydrocarbons on vanadium-phosphorus oxides: factors influencing the selectivity in 1-butene oxidation Industrial & Engineering Chemistry Product Research and Development. ,vol. 24, pp. 221- 226 ,(1985) , 10.1021/I300018A010
B Mahipal Reddy, K Narsimha, P Kanta Rao, VM Mastikhin, Influence of MoO3 and WO3 on the dispersion and activity of V2O5 in vanadia-silica catalysts Journal of Catalysis. ,vol. 118, pp. 22- 30 ,(1989) , 10.1016/0021-9517(89)90297-2
H. H. Kung, D. Patel, M. A. Chaar, Selective oxidative dehydrogenation of propane over V-Mg-O catalysts Journal of Catalysis. ,vol. 109, pp. 463- 467 ,(1988)