Influence of Catalysts with Different Templates on Direct Decomposition of NO in Cement Kiln Exhaust

Abstract:

The influence of catalysts with different templates on direct decomposition of NO in cement kiln exhaust was studied in this paper. The NO direct decomposition rate of porous catalyst materials with different templates was determined by infrared spectrometer. And pore structure and the microstructure of the catalysts were characterized by BET surface area, nitrogen adsorption-desorption. The results show that the catalytic performance of porous catalyst without any template is better than catalysts with other templates at low temperature. When the temperature reached 550 °C, NO decomposition rate of porous catalyst with CTAB could reach to more than 80%. And meanwhile, the catalysts with organic template reagent have higher BET surface area than those with inorganic template agent. With the increasing of the reaction time, the NO decomposition rate decreases. After reaction for 3 hours, the decomposition rate decreases from 80% to 40%.

• Periodical: Materials Science Forum (Volume 913)
• Pages: 948-953
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.913.948
• Online since: February 2018
• Authors: Yan Ling Gan, Su Ping Cui*, Hong Xia Guo, Jianfeng Wang, Ya Li Wang
• Keywords: Catalysts, NO Decomposition, Porous Materials, Template

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