Experimental Study on the NO Oxidation and Removal by Heterogeneous Fenton Reaction
Publication: Journal of Environmental Engineering
Volume 148, Issue 1
Abstract
For low-temperature flue gas, there is still no efficient and economic denitration technology. The oxidation absorption method can be believed as a new popular choice. Heterogeneous Fenton reaction is a more promising method for the oxidation and removal of NO. Based on a previous study on the absorption of by urea in the tail, the NO oxidation and removal by heterogeneous Fenton reaction was investigated in detail. Experimental results showed that the denitrification efficiency increased with the increase of injecting, while the concentration of have little influence. In order to ensure that the hydrogen peroxide is fully vaporized in the atomization zone, the temperature of the atomization zone should be at 125°C–170°C. Due to the self decomposition of hydrogen peroxide, the temperature in the reaction zone should drop rapidly to below 100°C. Rapid cooling after atomization is the key to improve the denitration efficiency. For the Fenton catalysts, the denitrification efficiency increased with the increase of loading amounts, and the denitrification efficiency can be greatly improved by the doping of Ce. Among the studied catalysts, catalyst had the best performance. The experimental study in this paper can commendably promote the follow-up technology development.
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Data Availability Statement
The data that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
This research was supported by Zhejiang Provincial Natural Science Foundation of China (Grant No. LY19E060002) and Zhejiang Provincial key research and development program (Grant No. 2020C03084).
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Published In
Journal of Environmental Engineering
Volume 148 • Issue 1 • January 2022
Copyright
© 2021 American Society of Civil Engineers.
History
Received: Aug 26, 2021
Accepted: Oct 7, 2021
Published online: Nov 12, 2021
Published in print: Jan 1, 2022
Discussion open until: Apr 12, 2022
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