Mo/γ-Al2O3 catalysts for the oxidative dehydrogenation of propane.: Effect of Mo loading

被引：123

作者：

Abello, MC

Gomez, MF

Ferretti, O

机构：

[1] UNSL, CONICET, INTEQUI, Inst Invest Tecnol Quim, RA-5700 San Luis, Argentina

[2] Natl Univ La Plata, CONICET, Ctr Invest & Desarrollo Proc Cataliticos, CINDECA, RA-1900 La Plata, Argentina

来源：

APPLIED CATALYSIS A-GENERAL | 2001年 / 207卷 / 1-2期

关键词：

propane; oxidative dehydrogenation of alkanes; molybdenum-supported catalyst;

D O I：

10.1016/S0926-860X(00)00680-3

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

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页码：421 / 431

页数：11

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