Email this article Study on NOx Emission Reduction in Coke Combustion and Sintering Process
- Authors: Song Han 1, Lin Dong 1, Zhiping Lei 1, Aiming Ke 1, Con Shi 1, Jing Chong Yan 1, Zhanku Li 1, Shigang Kang 1, Hengfu Shui 1, Zhicai Wang 1, Shibiao Ren 1, Chunxiu Pan 1
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Affiliations:
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Coal Clean Conversion and High Valued Utilization, Anhui University of Technology
- Issue: Vol 62, No 12 (2019)
- Pages: 585-592
- Section: Chemistry
- URL: https://ogarev-online.ru/1068-364X/article/view/227010
- DOI: https://doi.org/10.3103/S1068364X19120093
- ID: 227010
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Abstract
The NOx in the exhaust gas emitted from the coke combustion and sintering process has a serious impact on the environment. How to reduce the release of NOx in the combustion of coke has become a major problem to be solved. Adding a certain amount of catalyst to the coke combustion process can not only effectively improve the combustion efficiency of coke but also reduce the NOx emissions. In this paper, CeO2 is used as an inhibitor for coke combustion experiments, micro-sintering experiments and sintering cup experiments, focusing on the effect of CeO2 on NOx emissions during the coke combustion and sintering process. It is found that in the coke combustion reaction the addition of 1 and 2% CeO2 resulted in NOx reduction of 5.6 and 2.5%. The addition of 3% CeO2 resulted in a 2.8% increase in NOx emissions. When the amount of CeO2 added was 2%, the NO reduction rate during the sintering cup test reached 25.3%. At the same time, the addition of 2% CeO2 resulted in little change in the yield of the sinter, and the increase of the drum strength of the sinter.
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About the authors
Song Han
School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Coal Clean Conversion and High Valued Utilization, Anhui University of Technology
Email: zplei@ahut.edu.cn
China, Ma’anshan, Anhui Province, 243002
Lin Dong
School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Coal Clean Conversion and High Valued Utilization, Anhui University of Technology
Email: zplei@ahut.edu.cn
China, Ma’anshan, Anhui Province, 243002
Zhiping Lei
School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Coal Clean Conversion and High Valued Utilization, Anhui University of Technology
Author for correspondence.
Email: zplei@ahut.edu.cn
China, Ma’anshan, Anhui Province, 243002
Aiming Ke
School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Coal Clean Conversion and High Valued Utilization, Anhui University of Technology
Email: zplei@ahut.edu.cn
China, Ma’anshan, Anhui Province, 243002
Con Shi
School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Coal Clean Conversion and High Valued Utilization, Anhui University of Technology
Email: zplei@ahut.edu.cn
China, Ma’anshan, Anhui Province, 243002
Jing Chong Yan
School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Coal Clean Conversion and High Valued Utilization, Anhui University of Technology
Email: zplei@ahut.edu.cn
China, Ma’anshan, Anhui Province, 243002
Zhanku Li
School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Coal Clean Conversion and High Valued Utilization, Anhui University of Technology
Email: zplei@ahut.edu.cn
China, Ma’anshan, Anhui Province, 243002
Shigang Kang
School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Coal Clean Conversion and High Valued Utilization, Anhui University of Technology
Email: zplei@ahut.edu.cn
China, Ma’anshan, Anhui Province, 243002
Hengfu Shui
School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Coal Clean Conversion and High Valued Utilization, Anhui University of Technology
Author for correspondence.
Email: zplei@ahut.edu.cn
China, Ma’anshan, Anhui Province, 243002
Zhicai Wang
School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Coal Clean Conversion and High Valued Utilization, Anhui University of Technology
Email: zplei@ahut.edu.cn
China, Ma’anshan, Anhui Province, 243002
Shibiao Ren
School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Coal Clean Conversion and High Valued Utilization, Anhui University of Technology
Email: zplei@ahut.edu.cn
China, Ma’anshan, Anhui Province, 243002
Chunxiu Pan
School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Coal Clean Conversion and High Valued Utilization, Anhui University of Technology
Email: zplei@ahut.edu.cn
China, Ma’anshan, Anhui Province, 243002
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