Mo/γ-Al2O3 catalysts for the oxidative dehydrogenation of propane.: Effect of Mo loading
Mo/γ-Al2O3 catalysts for the oxidative dehydrogenation of propane.: Effect of Mo loading
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DOI：
10.1016/s0926-860x(00)00680-3
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发表时间：
2001-02-01
影响因子：
5.5
通讯作者：
Ferretti, O
中科院分区：
文献类型：
--
作者：
Abello, MC;Gomez, MF;Ferretti, O
研究了不同Mo负载的MoO3/ γ -Al2O3催化剂上丙烷的氧化脱氢反应。采用XRD、DRS、TPR、DTP和异丙醇分解反应对催化剂进行了表征。结果表明，当Mo含量从3.6 wt.%增加到12.7 wt.%时，丙烷转化率随酸度和还原性的增加而增加。当转化率高于20%时，与钼含量无关，丙烯的选择性稳定在25%左右。Mo/ γ -Al2O3的催化性能似乎与活性位点Mo的配位及其Brosnted酸性有关。(C) 2001 Elsevier Science B.V.版权所有
Oxidative dehydrogenation of propane over MoO3/gamma -Al2O3 catalysts with different Mo loading was studied. The catalysts were characterized by XRD, DRS, TPR, DTP and by isopropanol decomposition reaction. The results indicated that with Mo loading increasing from 3.6 to 12.7 wt.%, propane conversion increased parallel to the acidity and to the reducibility. At a conversion higher than 20% the selectivity to propene leveled off around 25% irrespective of the molybdenum content. The catalytic properties of Mo/gamma -Al2O3 appear to be related to the coordination of Mo species of the active sites and to its Brosnted acidity. (C) 2001 Elsevier Science B.V. All rights reserved.