GFC-IFC技术在多组分微量气体分析中的应用

谢耀; 华道柱; 齐宇; 沈婷婷; 刘振强; 叶华俊; 刘维屏

doi:10.37188/CO.2021-0064

Volume 14 Issue 6

Nov. 2021

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Chinese Optics > 2021 > 14(6): 1378-1386.

XIE Yao, HUA Dao-zhu, QI Yu, SHEN Ting-ting, LIU Zhen-qiang, YE Hua-jun, LIU Wei-ping. Applications of GFC-IFC in trace multi-component gas analysis[J]. Chinese Optics, 2021, 14(6): 1378-1386. doi: 10.37188/CO.2021-0064

Citation:

XIE Yao, HUA Dao-zhu, QI Yu, SHEN Ting-ting, LIU Zhen-qiang, YE Hua-jun, LIU Wei-ping. Applications of GFC-IFC in trace multi-component gas analysis[J]. Chinese Optics, 2021, 14(6): 1378-1386. doi: 10.37188/CO.2021-0064

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Applications of GFC-IFC in trace multi-component gas analysis

doi: 10.37188/CO.2021-0064

XIE Yao^{1, 2
,
,},
HUA Dao-zhu^1
,,
QI Yu^1
,,
SHEN Ting-ting^1
,,
LIU Zhen-qiang^1
,,
YE Hua-jun^1
,,
LIU Wei-ping^2
,

1.
Focused Photonics (Hangzhou) Inc., Hangzhou 310052, China
2.
College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310012, China

Funds: Supported by Central Government′s Guidance for Local Science and Technology Development Funds (No. 2021ZY1028)

More Information

Corresponding author: xie_yao3@163.com
Received Date: 19 May 2021
Rev Recd Date: 25 May 2021

Available Online: 02 Jun 2021

Publish Date: 19 Nov 2021

Abstract

Abstract

Ultra-low emission standards of flue gas emitted from stationary sources have been proposed, which creates a new challenge for Continuous Emission Monitoring (CEM). Peak carbon dioxide emissions and carbon neutrality are frequently-mentioned concepts, which means the monitoring of CO₂ will eventually be necessary. It is difficult to satisfy the strict limits of ultra-low emission standards with conventional CEM systems. A multi-component trace gas analysis system based on non-dispersive infrared is promoted in this paper to monitor trace gases of continuous emission. A Gas Filter Correlation (GFC) model and Interference Filter Correlation (IFC) model were established, which can describe the relationship of optical length, center wavelength, bandwidth of the filters and gas concentration with measure and reference signals. To confirm the measurement technique of gases, the GFC technique combines with the IFC technique to achieve a double-beam path. With the help of white cells, a small-scale, and the detection limit better than 0.5 mg/m³ can be realized. Zero and span drift are no more than ±2% of the full scale. SO₂, NO, NO₂, CO and CO₂ can be simultenously and continuously monitored to satisfy the requirements of ultra-low and carbon emission monitoring. This technique is helpful for obtaining factual, accurate and comprehensive CEM data.
- non-dispersive infrared,
- gas analysis,
- multi-component,
- gas filter correlation,
- interference filter correlation

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References(16)

References

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