
Application of Copper-Based Catalysts for the Selective Catalytic Combustion of Ammonia
Qian Zhang, Runze Tao, Yu Huang, Houzhang Tan, Baochong Cui
Prog Chem ›› 2024, Vol. 36 ›› Issue (5) : 783-797.
Application of Copper-Based Catalysts for the Selective Catalytic Combustion of Ammonia
Ammonia is a promising new energy carrier that has the potential to replace traditional fossil fuels due to its high calorific value,CO2emission-free and renewable properties,and low storage and transportation costs.However,ammonia combustion faces several challenges,such as high NOxemission,slow combustion rate,and ignition difficulties.To address these challenges,selective catalytic combustion is an efficient and promising way that can decrease combustion temperature,enhance combustion stability,improve fuel conversion rate and reduce NOxemission while requiring less auxiliary fuel and consuming less energy.Copper-based catalysts are cost-effective and they are demonstrated to exhibit excellent performance in ammonia catalytic combustion with high N2selectivity.In this review,the reaction experimental setup and primary mechanisms,namely NH-HNO,N2H4and i-SCR pathways,are presented first;then,the recent research progress on copper-based supported catalysts for ammonia combustion,including the effect of preparation methods,types of support materials,metal-support interactions,and Cu-based single or multiple active components on catalytic performance are reviewed in detail.Finally,the review is concluded by summarizing the research achievements,current drawbacks and proposing the future developments 。
1 Introduction
2 Catalytic NH3combustion experimental setup and mechanisms
2.1 Experimental setup and performance indicators
2.2 Mechanism and research techniques
3 Copper-based catalysts for NH3combustion
3.1 The effect of preparation methods on performance
3.2 The effect of support on performance
3.3 The effect of active component on performance
4 Conclusion and outlook
new energy carrier / ammonia / copper based catalysts / selective catalytic combustion / NOx emission
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