Characterisation and catalytic testing of VOx/Al2O3 catalysts for microstructured reactors

被引：25

作者：

Schwarz, Oliver ^{[1
]}

Frank, Benjamin ^{[1
]}

Hess, Christian ^{[2
]}

Schomaecker, Reinhard ^{[1
]}

机构：

[1] Tech Univ Berlin, Dept Chem, D-10623 Berlin, Germany

[2] Fritz Haber Inst Max Planck Soc, Dept Inorgan Chem, D-14195 Berlin, Germany

来源：

CATALYSIS COMMUNICATIONS | 2008年 / 9卷 / 02期

关键词：

VOx/Al2O3; vanadia; alumina; oxidative dehydrogenation of propane; ODP; microreaction technology; microreactor;

D O I：

10.1016/j.catcom.2007.06.009

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：

With regard to the application in a microstructured reactor, a special VOx/Al2O3 catalyst powder (3 mu m) was prepared and charactcrised by BET, XRD, UV/Vis DRS, and Raman spectroscopy. The higher the vanadium content, the higher the degree of polymerisation of the vanadium species on the support surface and the lower the BET surface area. Pelletised powders were tested in conventional tubular reactors for their catalytic performance in the oxidative dehydrogenation of propane. Their activity increases with vanadia loading, whereas selectivity towards propene decreases at iso-conversion. Catalytic benchmarking was performed to choose a reasonable catalyst for further investigations in a microreactor. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：229 / 233

页数：5

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