Volume 19, Issue 6 e3138
RESEARCH ARTICLE

Effect of liquid additives on the low temperature denitration activity of SNCR and emission characteristics of N2O and CO

Wenxi Ding

Wenxi Ding

Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, 210000 China

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Meng Liu

Corresponding Author

Meng Liu

Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, 210000 China

Correspondence

Meng Liu

Email: [email protected]

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Jun Wan

Jun Wan

Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, 210000 China

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Wei Liu

Wei Liu

Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, 210000 China

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Jiliang Ma

Jiliang Ma

Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, 210000 China

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Yufeng Duan

Yufeng Duan

Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, 210000 China

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First published: 08 August 2024

Abstract

The problem of nitrogen oxide (NOx) emissions has attracted wide attention in the field of environmental protection. The effects of sodium hydroxide (NaOH), hydrogen peroxide (H2O2), phenol (C6H5OH) and ethanol (C2H6OH) on the denitration activity of selective non-catalytic reduction (SNCR) and the emission of secondary pollutants nitrous oxide (N2O) and carbon monoxide (CO) were investigated. Results indicated that the addition of NaOH, phenol and ethanol can improve the denitration efficiency under low temperature by providing OH. From 650°C to 750°C, ethanol had the best effect, with the denitration efficiency of 30%. From 750°C to 850°C, the denitration efficiency of phenol was 40% ~ 50%. The introduction of phenol and ethanol would increase the N2O and CO emissions. From 700°C to 800°C, hydrogen peroxide only caused a small amount of N2O emissions and had no significant effect on CO.

CONFLICT OF INTEREST STATEMENT

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

DATA AVAILABILITY STATEMENT

The data used to support the findings of this study are available from the corresponding author upon request.

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