- 期刊
Alumina-Supported Catalysts for NO Reduction in an Oxidizing Atmosphere
並列摘要
Catalytic selective reduction of NOx to N2 using a hydrocarbon in an oxidizing atmosphere is challenging because of the competitive reaction of hydrocarbon combustion. Alumina is a rather effective catalyst for this reaction, but it requires high operating temperatures. The activity can be enhanced by adding other catalytic components, such as Pt, Ag, CoOx, or SnO2. Many of these catalyst systems are bifunctional. A substantial portion of the reaction pathway for propene reduction of NOx has been elucidated for SnO2/Al2O3. The function of SnO2 is to oxidize the propene to acrolein, which is than transterred to alumina where it reacts to form acetaldehyde. Reduction of NOx by acetaldehyde on alumina leads to N2. The bifuncational aspect of the catalyst systems offers the potential to improve the catalytic performance by optimizing the individual components.
被引用紀錄
延伸閱讀
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