Real-time Monitoring for The Concentrations of SO2 and H2S Mixed Gas by Ultraviolet Absorption Spectroscopy Detection Technique

SUN Yuan-tao; ZHANG Hong-tian

doi:10.3788/fgxb20153603.0366

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Real-time Monitoring for The Concentrations of SO₂ and H₂S Mixed Gas by Ultraviolet Absorption Spectroscopy Detection Technique

更新时间：2020-08-12

- Real-time Monitoring for The Concentrations of SO₂ and H₂S Mixed Gas by Ultraviolet Absorption Spectroscopy Detection Technique
- Chinese Journal of Luminescence Vol. 36, Issue 3, Pages: 366-369(2015)
- 作者机构：
  
  哈尔滨工程大学动力与能源工程学院,黑龙江哈尔滨,150001
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20153603.0366
  CLC： O433.1;TH744
- Received：23 December 2014，
  
  Revised：20 January 2015，
  
  Published：03 March 2015
- 稿件说明：
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孙远涛, 张洪田,. 基于紫外吸收光谱技术的混合气体SO2和H2S浓度的实时监测[J]. 发光学报, 2015,36(3): 366-369

SUN Yuan-tao, ZHANG Hong-tian,. Real-time Monitoring for The Concentrations of SO2 and H2S Mixed Gas by Ultraviolet Absorption Spectroscopy Detection Technique[J]. Chinese Journal of Luminescence, 2015,36(3): 366-369
孙远涛, 张洪田,. 基于紫外吸收光谱技术的混合气体SO2和H2S浓度的实时监测[J]. 发光学报, 2015,36(3): 366-369 DOI： 10.3788/fgxb20153603.0366.

SUN Yuan-tao, ZHANG Hong-tian,. Real-time Monitoring for The Concentrations of SO2 and H2S Mixed Gas by Ultraviolet Absorption Spectroscopy Detection Technique[J]. Chinese Journal of Luminescence, 2015,36(3): 366-369 DOI： 10.3788/fgxb20153603.0366.

摘要

采用紫外波段吸收光谱检测技术

实现了SO

和H

S混合气体各组分浓度的实时监测。在实验中选用氘灯为测试光源

MAYA2000Pro光谱仪用于采集数据。基于光谱的峰谷特性

选择吸收光谱上波长非常接近的两个来推导SO

气体的浓度公式

该方法可以忽略其他气体散射和吸收的影响。H

S气体的吸收光谱可以通过减去混合气体中相应的SO

气体吸收光谱获得。在常温常压下

S气体的浓度可以从H

S气体的吸收光谱的吸收峰获得。混合气体的测量精度约为110

-6

(1 ppm)。基于上述方法

实现了混合气体SO

和H

S浓度的实时监测。

Abstract

By using ultraviolet absorption spectroscopy detection technique

the real-time monitoring for the concentrations of SO

and H

S mixed gas was realized. Deuterium lamp was used as a light source

and MAYA2000Pro spectrometer served as spectrograph in the experiment. Based on Beer-Lambert law and absorption spectrum

the formula of SO

concentration was deduced by choosing very close two points in the absorption spectrum

which could ignore the interference of the scattering and absorption from other gas. The absorption spectrum of H

S gas can be achieved by subtracting the corresponding absorption spectrum of SO

gas from mixed gas spectrum. At the normal temperature and pressure

the concentration of H

S could be obtained from the absorption peak of H

S absorption spectrum. The measuring accuracy of mixed gas is about 110

-6

(1 ppm). So

our work realizes the real-time monitoring for SO

and H

S in mixed gas.

关键词

Keywords

references

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