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Topics in Catalysis
Published in: Topics in Catalysis 1-4/2019

18-12-2018 | Original Paper

Selective Catalytic Reduction of NOx with Ammonia and Hydrocarbon Oxidation Over V2O5–MoO3/TiO2 and V2O5–WO3/TiO2 SCR Catalysts

Authors: Lei Zheng, Maria Casapu, Matthias Stehle, Olaf Deutschmann, Jan-Dierk Grunwaldt

Published in: Topics in Catalysis | Issue 1-4/2019

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Abstract

The NH3-SCR performance in the presence of short and long chain hydrocarbons (propylene and dodecane) as well as of formaldehyde was investigated for a series of V2O5–MoO3/TiO2 (VMoTi) and V2O5–WO3/TiO2 (VWTi) catalysts. The results demonstrate that vanadium oxides act as the main catalytically active component for NOx conversion, hydrocarbon (HC) and formaldehyde oxidation. Among VMoTi and VWTi materials with different vanadium loading, the catalysts containing 3 wt% V2O5 lead to the highest catalytic activity. The ability to simultaneously remove NOx, HC and HCHO over VMoTi is inferior to that of the conventional WO3-based catalyst. However, VMoTi exhibits higher CO2 selectivity, especially during oxidation of long-chain HCs, which represents an important advantage for a possible multifunctional catalyst. Apart from CO, formaldehyde was detected as byproduct during HC oxidation for both catalyst formulations.
previous article Mechanistic Aspect of N2O Formation Over Pt–Ba/γ-Al2O3 Catalysts
next article NOx Adsorption Over Ce/Zr-Based Catalysts Doped with Cu and Ba

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Appendix
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Metadata
Title
Selective Catalytic Reduction of NOx with Ammonia and Hydrocarbon Oxidation Over V2O5–MoO3/TiO2 and V2O5–WO3/TiO2 SCR Catalysts
Authors
Lei Zheng
Maria Casapu
Matthias Stehle
Olaf Deutschmann
Jan-Dierk Grunwaldt
Publication date
18-12-2018
Publisher
Springer US
Published in
Topics in Catalysis / Issue 1-4/2019
Print ISSN: 1022-5528
Electronic ISSN: 1572-9028
DOI
https://doi.org/10.1007/s11244-018-1097-9

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