Analysis and Treatment Measures of Continuous Emission Monitoring System Fouling in a Coal-Fired Power Plant after Ultra-Low Emission Transformation

Zhang, Zhenmin; Zhu, Yujie; Shen, Jianjun; Tu, Anqi; Wu, Yu; Zhang, Zhiyong

Zhenmin Zhang, Yujie Zhu, Jianjun Shen, Anqi Tu, Yu Wu, Zhiyong Zhang

Analysis and Treatment Measures of Continuous Emission Monitoring System Fouling in a Coal-Fired Power Plant after Ultra-Low Emission Transformation

Abstract:

Scanning electron microscopy (SEM) micro-morphology analysis, X-ray diffraction (XRD) and energy-dispersive X-ray diffraction (EDX) component analysis were conducted on the fouling of continuous emission monitoring system (CEMS) sampling tube at the outlet of limestone-gypsum wet flue gas desulfurization (WFGD) of unit 1 in a 600 MW supercritical coal-fired power plant in Inner Mongolia Autonomous Region. The results show that the main component of fouling was ammonium dihydrogen phosphate, which was generated by the reaction between phosphoric acid in the phosphoric acid titration device and the NH3 escaping from the selective catalyst reduction (SCR) denitrification system, and corresponding treatment measures were taken. It indicates that the average value of ammonia escape was reduced from 1.79 ppm to 1.54 ppm through the ammonia injection optimization test of the SCR denitrification system (at the load of 410 MW of the unit), which effectively reduced the generation of fouling. This research provides reference for improving the reliability of coal-fired unit operation after ultra-low emission transformation.

Keywords:
CEMS fouling; SCR ammonia injection optimization and adjustment; Ultra-low emission transformation; Ammonia escape; Ammonium dihydrogen phosphate

Issue: 2020, Volume 71, Issue 5

Pages: 239-250

Publication date: 2020/5/29

https://doi.org/10.37358/RC.20.5.8132

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This article is published under the Creative Commons Attribution 4.0 International License

Citation Styles

Cite this article as:
ZHANG, Z., ZHU, Y., SHEN, J., TU, A., WU, Y., ZHANG, Z., Analysis and Treatment Measures of Continuous Emission Monitoring System Fouling in a Coal-Fired Power Plant after Ultra-Low Emission Transformation, Rev. Chim., 71(5), 2020, 239-250.

Vancouver
Zhang Z, Zhu Y, Shen J, Tu A, Wu Y, Zhang Z. Analysis and Treatment Measures of Continuous Emission Monitoring System Fouling in a Coal-Fired Power Plant after Ultra-Low Emission Transformation. Rev. Chim.[internet]. 2020 May;71(5):239-250. Available from: https://doi.org/10.37358/RC.20.5.8132

APA 6th edition
Zhang, Z., Zhu, Y., Shen, J., Tu, A., Wu, Y. & Zhang, Z. (2020). Analysis and Treatment Measures of Continuous Emission Monitoring System Fouling in a Coal-Fired Power Plant after Ultra-Low Emission Transformation. Revista de Chimie, 71(5), 239-250. https://doi.org/10.37358/RC.20.5.8132

Harvard
Zhang, Z., Zhu, Y., Shen, J., Tu, A., Wu, Y., Zhang, Z. (2020). 'Analysis and Treatment Measures of Continuous Emission Monitoring System Fouling in a Coal-Fired Power Plant after Ultra-Low Emission Transformation', Revista de Chimie, 71(5), pp. 239-250. https://doi.org/10.37358/RC.20.5.8132

IEEE
Z. Zhang, Y. Zhu, J. Shen, A. Tu, Y. Wu, Z. Zhang, "Analysis and Treatment Measures of Continuous Emission Monitoring System Fouling in a Coal-Fired Power Plant after Ultra-Low Emission Transformation". Revista de Chimie, vol. 71, no. 5, pp. 239-250, 2020. [online]. https://doi.org/10.37358/RC.20.5.8132

Text
Zhenmin Zhang, Yujie Zhu, Jianjun Shen, Anqi Tu, Yu Wu, Zhiyong Zhang,
Analysis and Treatment Measures of Continuous Emission Monitoring System Fouling in a Coal-Fired Power Plant after Ultra-Low Emission Transformation,
Revista de Chimie,
Volume 71, Issue 5,
2020,
Pages 239-250,
ISSN 2668-8212,
https://doi.org/10.37358/RC.20.5.8132.
(https://revistadechimie.ro/Articles.asp?ID=8132)
Keywords: CEMS fouling; SCR ammonia injection optimization and adjustment; Ultra-low emission transformation; Ammonia escape; Ammonium dihydrogen phosphate

RIS
TY - JOUR
T1 - Analysis and Treatment Measures of Continuous Emission Monitoring System Fouling in a Coal-Fired Power Plant after Ultra-Low Emission Transformation
A1 - Zhang, Zhenmin
A2 - Zhu, Yujie
A3 - Shen, Jianjun
A4 - Tu, Anqi
A5 - Wu, Yu
A6 - Zhang, Zhiyong
JF - Revista de Chimie
JO - Rev. Chim.
PB - Revista de Chimie SRL
SN - 2668-8212
Y1 - 2020
VL - 71
IS - 5
SP - 239
EP - 250
UR - https://doi.org/10.37358/RC.20.5.8132
KW - CEMS fouling
KW - SCR ammonia injection optimization and adjustment
KW - Ultra-low emission transformation
KW - Ammonia escape
KW - Ammonium dihydrogen phosphate
ER -

BibTex
@article{RevCh2020P239,
author = {Zhang Zhenmin and Zhu Yujie and Shen Jianjun and Tu Anqi and Wu Yu and Zhang Zhiyong},
title = {Analysis and Treatment Measures of Continuous Emission Monitoring System Fouling in a Coal-Fired Power Plant after Ultra-Low Emission Transformation},
journal = {Revista de Chimie},
volume = {71},
number = {5},
pages = {239-250},
year = {2020},
issn = {2668-8212},
doi = {https://doi.org/10.37358/RC.20.5.8132},
url = {https://revistadechimie.ro/Articles.asp?ID=8132}
}

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