Application of Ultra Low Emission Gas Monitoring System Based on Technology of Fourier Transform Infrared Spectroscopy

Abstract

Abstract: The problem of China's atmospheric environmental pollution is grim. Emission source of SO₂ and NO_x comes from thermal power plants, coal-fired boilers which are based on coal burning. The current standard of coal-fired flue gas emission is strictly defined, so that more stringent requirements of on-line monitoring technology for continuous emission of flue gas are put forward. Based on the method of differential absorption spectroscopy, the analyzer of SO₂ and NO pollution gases in coal-fired power plant was studied. According to the absorption spectrum of SO₂ and NO, using SiC lamp as the light source, the measurement band of 1900~2600 nm is carried out. By using the least square method, correlation coefficient of two sets of equipment is calculated. As a result, the analyzer can meet the demand of ultra low emission gas monitoring.

Key words: ultra low emission gas monitoring, Fourier transform infrared spectroscopy, multiple reflection cell, spectrometer

CLC Number:

TP79

ZHU Yu1, CAO Yong2*, ZHANG Fuhai1, SHE Jingjing1, ZHU Tiangao1. Application of Ultra Low Emission Gas Monitoring System Based on Technology of Fourier Transform Infrared Spectroscopy[J]. Journal of Atmospheric and Environmental Optics.

References

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