The Interference of CH<sub>4</sub> in SO<sub>2</sub> Monitoring by NDIR Method and Countermeasures

Huang Xiaohui; Zhu Yongchao; Mo Hongda

doi:doi:10.11648/j.ijees.20230803.12

| Peer-Reviewed

The Interference of CH₄ in SO₂ Monitoring by NDIR Method and Countermeasures

Huang Xiaohui, Zhu Yongchao, Mo Hongda

Published in International Journal of Energy and Environmental Science (Volume 8, Issue 3)

Received: 6 June 2023 Accepted: 10 July 2023 Published: 13 July 2023

Views: Downloads:

Download PDF

Share This Article

Twitter
Linked In
Facebook

Abstract

The NDIR method was not applicable for the determination of SO₂ from coke oven stacks of coking industry, on account of the CH₄ interference problem. This article analyzed the interference of CH₄ in SO₂ monitoring by NDIR method. We used a gas distributing device to prepare the mixed gas including CH₄ and SO₂ based on the real exhaust conditions. The study has compared the results of gas samples with different mixing ratios and has found that the CH₄ caused the SO₂ readings to rise. The higher the concentration of the CH₄ in the mixed gas, the more deviation in the SO₂ measurement is. Meanwhile, there was an obvious linear correlation between the CH₄ concentration and the deviation--about 16 μmol/mol CH₄ could contribute to 1 μmol/mol SO₂ deviation. In this article, we have tested two methods to remove the CH₄ interference deviation: gas filter and auxiliary sensor. The optical filter method could remove more than 85% of deviation while the auxiliary-sensor method could remove all the deviation caused by CH₄, with indication error under ±1 μmol/mol. The test results showed that the NDIR method with suitable countermeasures can be used for the coking industry and other applications which have CH₄ interference problem.

Published in	International Journal of Energy and Environmental Science (Volume 8, Issue 3)
DOI	10.11648/j.ijees.20230803.12
Page(s)	67-72
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2023. Published by Science Publishing Group

Keywords

Methane, Sulfur Dioxide, Non-Dispersive Infrared (NDIR), Interference, Gas Filter, Auxiliary Sensor

References

[1]	Fan Chuanming, Li Jiehong. Contrastive analysis of on-site determination methods of SO2 from stationary sources [J]. Environment and Development, 2019, (3): 145-148.
[2]	Ren Yaodong. Discussion on Standard Methods for Monitoring Sulfur Dioxide in Stationary Pollution Sources [J]. Shandong Chemical Industry, 2020, 49 (13): 85-86.
[3]	Feng Yongchao, Hu Yong. Effect of humidity and CO on the fast analysis of SO2 by three different methods [J]. Environmental Science & Technology, 2016, 39 (S1): 203-206.
[4]	Chen Xiaoning, Liu Jianguo, Si Fuqi, et., al. Application of Gas Filter Correlation Technique in IR Monitoring System of Methane [J]. Opto-Electronic Engineering. 2008, 35 (4): 49-52.
[5]	Liu Tonghao, Zhang Shoubin, Jing Hong, et., al. Study on the Interference of Methane to the Determination of Sulfur Dioxide in Stationary Pollutant Exhaust Gas by Non-dispersive Infrared Absorption Method [J]. Environmental Monitoring in China. 2020, 36 (6): 143-149.
[6]	Wang Qiang, Zhong Qi, Zhou Gang, et., al. The Comparison of Performance and Application for Portable Type Sulfur Dioxide Flue Gas Analyzer by Non-Dispersive Infrared Method. Environmental Monitoring in China, 2014, 30 (3): 149-153.
[7]	Zhang Feilong, Li Yang, Qiao Nan. Influence of CH4 Gas on Non-Dispersive Infrared Absorption Method for the Determination of SO2 in Waste Gas [J]. Shanxi Metallurgy, 2021, 44 (2): 31-33.
[8]	Qiao Zhiwei, Wang Anqi, Zhang Zhenxin, et., al. Study on the Performance of Low Concentration Sulfur Dioxide Analyzers Based on Different Principles [J]. Environmental Monitoring and Forewarning, 2017, 9 (6): 29-32.
[9]	Wei Fusheng, et al. Air And Waste gas monitor analysis method [M].4 version. Beijing: China Environmental Science Press, 2003: 428-429.
[10]	Teng Enjiang, et al. Operations management of Flue gas and dust Continuous Emission Monitoring System [M]. Beijing Chemical Industry Press, 2008: 15-23.
[11]	ROTHMAN L S, GORDON I E, BABIKOV Y, et., al. The HITRAN 2012 Molecular Spectroscopic Database. QUANT J, RADIAT t. Transf. 2012, 96, 139-204.
[12]	Zhang Yu, Wang Yiding, Li Li, et al. The Principle and Technical Analysis of Methane Detection Using Infrared Absorption Spectroscopy [J]. Spectroscopy and Spectral Analysis, 2008, 28 (11): 2515-2519.
[13]	Hu Tibao, Luo Zhongchang. Anti-interference Measure of SO2 Infrared Gas Analyzer [J]. Analytical Instrumentation, 2018 (5): 124-129.
[14]	Sun Youwen, Liu Wenqing, Wang Shimei, et al. Research on the Method of Interference Correction for Nondispersive Infrared Multi-Component Gas Analysis [J]. Spectroscopy and Spectral Analysis, 2011, 31 (10): 2719-2724.
[15]	Yuan Shuai, Wang Guangzhen, Fu Dehui, et al. Cross Interference Characteristics of Photoacoustic Spectroscopy Multi-gas Analyzer [J]. Acta Photonica Sinica, 2021, 50 (4): 0430002.
[16]	Ren Lijun, Ma Bin, Liu Guohong, et al. Research Progress of Non-dispersive Infrared Sensor for Gas Detection [J]. Journal of Instrumental Analysis, 2020, 39 (7): 922-928.
[17]	Ministry of Environmental Protection. Stationary source emission-determination of sulphur dioxide Non-dispersive infrared absorption method: HJ 629-2011 [S]. Beijing: China Environmental Science Press, 2011.
[18]	Ministry of Ecological Environment. Specifications and test procedures for portable monitoring instrument for SO2 and NOX based on ultraviolet absorption method in flue gas emitted from stationary sources: HJ 1045-2019 [S]. Beijing: China Environmental Science Press, 2019.
[19]	Ministry of Environmental Protection. Specifications and test procedures for continuous emission monitoring system for SO2, NOx and particulate matter in flue gas emitted from stationary sources: HJ 76-2017 [S]. Beijing: China Environmental Science Press, 2017.

Cite This Article

Plain Text BibTeX RIS

APA Style

Huang Xiaohui, Zhu Yongchao, Mo Hongda. (2023). The Interference of CH4 in SO2 Monitoring by NDIR Method and Countermeasures. International Journal of Energy and Environmental Science, 8(3), 67-72. https://doi.org/10.11648/j.ijees.20230803.12

Copy | Download

ACS Style

Huang Xiaohui; Zhu Yongchao; Mo Hongda. The Interference of CH4 in SO2 Monitoring by NDIR Method and Countermeasures. Int. J. Energy Environ. Sci. 2023, 8(3), 67-72. doi: 10.11648/j.ijees.20230803.12

Copy | Download

AMA Style

Huang Xiaohui, Zhu Yongchao, Mo Hongda. The Interference of CH4 in SO2 Monitoring by NDIR Method and Countermeasures. Int J Energy Environ Sci. 2023;8(3):67-72. doi: 10.11648/j.ijees.20230803.12

Copy | Download

@article{10.11648/j.ijees.20230803.12,
  author = {Huang Xiaohui and Zhu Yongchao and Mo Hongda},
  title = {The Interference of CH4 in SO2 Monitoring by NDIR Method and Countermeasures},
  journal = {International Journal of Energy and Environmental Science},
  volume = {8},
  number = {3},
  pages = {67-72},
  doi = {10.11648/j.ijees.20230803.12},
  url = {https://doi.org/10.11648/j.ijees.20230803.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijees.20230803.12},
  abstract = {The NDIR method was not applicable for the determination of SO2 from coke oven stacks of coking industry, on account of the CH4 interference problem. This article analyzed the interference of CH4 in SO2 monitoring by NDIR method. We used a gas distributing device to prepare the mixed gas including CH4 and SO2 based on the real exhaust conditions. The study has compared the results of gas samples with different mixing ratios and has found that the CH4 caused the SO2 readings to rise. The higher the concentration of the CH4 in the mixed gas, the more deviation in the SO2 measurement is. Meanwhile, there was an obvious linear correlation between the CH4 concentration and the deviation--about 16 μmol/mol CH4 could contribute to 1 μmol/mol SO2 deviation. In this article, we have tested two methods to remove the CH4 interference deviation: gas filter and auxiliary sensor. The optical filter method could remove more than 85% of deviation while the auxiliary-sensor method could remove all the deviation caused by CH4, with indication error under ±1 μmol/mol. The test results showed that the NDIR method with suitable countermeasures can be used for the coking industry and other applications which have CH4 interference problem.},
 year = {2023}
}

Copy | Download

TY  - JOUR
T1  - The Interference of CH4 in SO2 Monitoring by NDIR Method and Countermeasures
AU  - Huang Xiaohui
AU  - Zhu Yongchao
AU  - Mo Hongda
Y1  - 2023/07/13
PY  - 2023
N1  - https://doi.org/10.11648/j.ijees.20230803.12
DO  - 10.11648/j.ijees.20230803.12
T2  - International Journal of Energy and Environmental Science
JF  - International Journal of Energy and Environmental Science
JO  - International Journal of Energy and Environmental Science
SP  - 67
EP  - 72
PB  - Science Publishing Group
SN  - 2578-9546
UR  - https://doi.org/10.11648/j.ijees.20230803.12
AB  - The NDIR method was not applicable for the determination of SO2 from coke oven stacks of coking industry, on account of the CH4 interference problem. This article analyzed the interference of CH4 in SO2 monitoring by NDIR method. We used a gas distributing device to prepare the mixed gas including CH4 and SO2 based on the real exhaust conditions. The study has compared the results of gas samples with different mixing ratios and has found that the CH4 caused the SO2 readings to rise. The higher the concentration of the CH4 in the mixed gas, the more deviation in the SO2 measurement is. Meanwhile, there was an obvious linear correlation between the CH4 concentration and the deviation--about 16 μmol/mol CH4 could contribute to 1 μmol/mol SO2 deviation. In this article, we have tested two methods to remove the CH4 interference deviation: gas filter and auxiliary sensor. The optical filter method could remove more than 85% of deviation while the auxiliary-sensor method could remove all the deviation caused by CH4, with indication error under ±1 μmol/mol. The test results showed that the NDIR method with suitable countermeasures can be used for the coking industry and other applications which have CH4 interference problem.
VL  - 8
IS  - 3
ER  -

Copy | Download

Author Information

Huang Xiaohui

Horiba (China) Trading Co., Ltd., Guangzhou, China
Zhu Yongchao

Horiba (China) Trading Co., Ltd., Beijing, China
Mo Hongda

Guangdong CTSY Environmental Technology Co., Ltd., Foshan, China

Download PDF

Sections

Plain Text BibTeX RIS

APA Style

Huang Xiaohui, Zhu Yongchao, Mo Hongda. (2023). The Interference of CH4 in SO2 Monitoring by NDIR Method and Countermeasures. International Journal of Energy and Environmental Science, 8(3), 67-72. https://doi.org/10.11648/j.ijees.20230803.12

Copy | Download

ACS Style

Huang Xiaohui; Zhu Yongchao; Mo Hongda. The Interference of CH4 in SO2 Monitoring by NDIR Method and Countermeasures. Int. J. Energy Environ. Sci. 2023, 8(3), 67-72. doi: 10.11648/j.ijees.20230803.12

Copy | Download

AMA Style

Huang Xiaohui, Zhu Yongchao, Mo Hongda. The Interference of CH4 in SO2 Monitoring by NDIR Method and Countermeasures. Int J Energy Environ Sci. 2023;8(3):67-72. doi: 10.11648/j.ijees.20230803.12

Copy | Download

@article{10.11648/j.ijees.20230803.12,
  author = {Huang Xiaohui and Zhu Yongchao and Mo Hongda},
  title = {The Interference of CH4 in SO2 Monitoring by NDIR Method and Countermeasures},
  journal = {International Journal of Energy and Environmental Science},
  volume = {8},
  number = {3},
  pages = {67-72},
  doi = {10.11648/j.ijees.20230803.12},
  url = {https://doi.org/10.11648/j.ijees.20230803.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijees.20230803.12},
  abstract = {The NDIR method was not applicable for the determination of SO2 from coke oven stacks of coking industry, on account of the CH4 interference problem. This article analyzed the interference of CH4 in SO2 monitoring by NDIR method. We used a gas distributing device to prepare the mixed gas including CH4 and SO2 based on the real exhaust conditions. The study has compared the results of gas samples with different mixing ratios and has found that the CH4 caused the SO2 readings to rise. The higher the concentration of the CH4 in the mixed gas, the more deviation in the SO2 measurement is. Meanwhile, there was an obvious linear correlation between the CH4 concentration and the deviation--about 16 μmol/mol CH4 could contribute to 1 μmol/mol SO2 deviation. In this article, we have tested two methods to remove the CH4 interference deviation: gas filter and auxiliary sensor. The optical filter method could remove more than 85% of deviation while the auxiliary-sensor method could remove all the deviation caused by CH4, with indication error under ±1 μmol/mol. The test results showed that the NDIR method with suitable countermeasures can be used for the coking industry and other applications which have CH4 interference problem.},
 year = {2023}
}

Copy | Download

TY  - JOUR
T1  - The Interference of CH4 in SO2 Monitoring by NDIR Method and Countermeasures
AU  - Huang Xiaohui
AU  - Zhu Yongchao
AU  - Mo Hongda
Y1  - 2023/07/13
PY  - 2023
N1  - https://doi.org/10.11648/j.ijees.20230803.12
DO  - 10.11648/j.ijees.20230803.12
T2  - International Journal of Energy and Environmental Science
JF  - International Journal of Energy and Environmental Science
JO  - International Journal of Energy and Environmental Science
SP  - 67
EP  - 72
PB  - Science Publishing Group
SN  - 2578-9546
UR  - https://doi.org/10.11648/j.ijees.20230803.12
AB  - The NDIR method was not applicable for the determination of SO2 from coke oven stacks of coking industry, on account of the CH4 interference problem. This article analyzed the interference of CH4 in SO2 monitoring by NDIR method. We used a gas distributing device to prepare the mixed gas including CH4 and SO2 based on the real exhaust conditions. The study has compared the results of gas samples with different mixing ratios and has found that the CH4 caused the SO2 readings to rise. The higher the concentration of the CH4 in the mixed gas, the more deviation in the SO2 measurement is. Meanwhile, there was an obvious linear correlation between the CH4 concentration and the deviation--about 16 μmol/mol CH4 could contribute to 1 μmol/mol SO2 deviation. In this article, we have tested two methods to remove the CH4 interference deviation: gas filter and auxiliary sensor. The optical filter method could remove more than 85% of deviation while the auxiliary-sensor method could remove all the deviation caused by CH4, with indication error under ±1 μmol/mol. The test results showed that the NDIR method with suitable countermeasures can be used for the coking industry and other applications which have CH4 interference problem.
VL  - 8
IS  - 3
ER  -

Copy | Download