Research of SO2 concentration analyzing instrument based on differential optical absorption spectroscopy

FENG Hailiang; WANG Yingjian; HUANG Hong; HUANG Yunbiao

doi:10.7510/jgjs.issn.1001-3806.2016.05.021

For monitoring real-time SO2 emissions of industrial flue gas, a SO2 concentration analyzing instrument was constructed based on differential optical absorption spectroscopy (DOAS). The standard absorption cross section data for SO2 matching with the instrument resolution was obtained in the laboratory on the basis of studying processing methods for DOAS data. The gas pool structure was ameliorated applying optical reflectors and UV quartz lenses. The results show that the measured concentration is consistent with the standard concentration, which meets high-precision real-time monitoring SO2 emissions of industrial flue gas.

Research of SO2 concentration analyzing instrument based on differential optical absorption spectroscopy

1. Key Laboratory on Opto-Electronic Technique and Systems of Ministry of Education, Chongqing University, Chongqing 400044, China;

2. Technical Center, Chongqing Chuanyi Automation Co. Ltd., Chongqing 401121, China

Received Date: 2015-05-27

Accepted Date: 2015-06-11

Available Online: 2016-09-25

Abstract: For monitoring real-time SO2 emissions of industrial flue gas, a SO2 concentration analyzing instrument was constructed based on differential optical absorption spectroscopy (DOAS). The standard absorption cross section data for SO2 matching with the instrument resolution was obtained in the laboratory on the basis of studying processing methods for DOAS data. The gas pool structure was ameliorated applying optical reflectors and UV quartz lenses. The results show that the measured concentration is consistent with the standard concentration, which meets high-precision real-time monitoring SO2 emissions of industrial flue gas.

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Reference (16)

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Research of SO2 concentration analyzing instrument based on differential optical absorption spectroscopy

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