Quantitative detection of H2S and CS2 mixed gases based on UV absorption spectrometry

被引：31

作者：

Zhang, Xiaoxing ^{[1
]}

Cui, Zhaolun ^{[1
]}

Cheng, Zheng ^{[2
]}

Li, Yalong ^{[1
]}

Xiao, Hai ^{[3
]}

机构：

[1] Wuhan Univ, Sch Elect Engn, Wuhan 430072, Hubei, Peoples R China

[2] State Grid Elect Power Co Chongqing, Yongchuan 402160, Peoples R China

[3] Clemson Univ, Dept Elect & Comp Engn, COMSET, Clemson, SC 29634 USA

来源：

RSC ADVANCES | 2017年 / 7卷 / 80期

关键词：

PHOTOABSORPTION CROSS-SECTIONS; SF6; DECOMPOSITION; SPECTROSCOPY; SPECTRA; NM; TEMPERATURES; COMPONENTS; REGION; SENSOR; SO2;

D O I：

10.1039/c7ra09983e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

H2S and CS2 are the decomposition components of insulating gas SF6. The detection of these two gases is significant for the online monitoring and fault diagnosis of SF6 electrical equipment. In this study, an ultraviolet (UV) differential optical absorption spectrometry (UV-DOAS) platform is established for detecting the concentration of H2S and CS2 mixed gases. Based on the platform, we obtained the UV absorption spectra of the two gases. The linear relationship between each gas absorption spectra and the concentration was established by wavelet processing and frequency analysis. The interference between the two gases in the UV spectrum region was studied. H2S at different concentrations had little effect on the UV absorption spectra of CS2. The linearity (R-2) of CS2 inversion formula was 0.9997. CS2 above 50 ppb produces a great interference on H2S concentration detection. CS2 concentration has a linear relationship with the H2S concentration inversion; hence, the H2S correction formula with CS2 concentration as the variable is proposed. With the correction formula, the linearity (R-2) of H2S inversion formula reaches 0.9994 in mixed gas detection, which can meet the H2S and CS2 mixed gases quantitative detection.

引用

页码：50889 / 50898

页数：10

共 29 条

[1] MEASUREMENT OF PHOTOABSORPTION AND FLUORESCENCE CROSS-SECTIONS FOR CS2 AT 188.2-213 AND 287.5-339.5 NM
AHMED, SM
KUMAR, V
[J]. PRAMANA-JOURNAL OF PHYSICS, 1992, 39 (04): : 367 - 380
[2] HIGH, ROOM AND LOW-TEMPERATURE PHOTOABSORPTION CROSS-SECTIONS OF CS2 IN THE 1800-2300-ANGSTROM REGION
CHEN, FZ
WU, CYR
[J]. GEOPHYSICAL RESEARCH LETTERS, 1995, 22 (16) : 2131 - 2134
[3] Cheng L., 2015, HIGH VOLTAGE ENG, V41, P453, DOI [10.13336/j.1003-6520.hve.2015.02.014, DOI 10.13336/J.1003-6520.HVE.2015.02.014]
[4] Christophorou L. G., 1999, IEEE INT C PLASM SCI, P107
[5] SF6 DECOMPOSITION IN GAS-INSULATED EQUIPMENT
CHU, FY
[J]. IEEE TRANSACTIONS ON ELECTRICAL INSULATION, 1986, 21 (05): : 693 - 725
[6] Photonic sensing of the atmosphere by absorption spectroscopy
Cui, Xiaojuan
Lengignon, Christophe
Wu, Tao
Zhao, Weixiong
Wysocki, Gerard
Fertein, Eric
Coeur, Cecile
Cassez, Andy
Croize, Laurence
Chen, Weidong
Wang, Yingjian
Zhang, Weijun
Gao, Xiaoming
Liu, Wenqing
Zhang, Yujun
Dong, Fengzhong
[J]. JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, 2012, 113 (11) : 1300 - 1316
[7] ULTRAVIOLET-SPECTRA OF VIBRATIONALLY HIGHLY EXCITED CS2 MOLECULES
DOVE, JE
HIPPLER, H
PLACH, J
TROE, J
[J]. JOURNAL OF CHEMICAL PHYSICS, 1984, 81 (03) : 1209 - 1214
[8] UV absorption cross-sections of selected sulfur-containing compounds at temperatures up to 500°C
Grosch, H.
Fateev, A.
Clausen, S.
[J]. JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, 2015, 154 : 28 - 34
[9] Liang Chen, 2010, 2010 IEEE International Conference on Web Services (ICWS), P683, DOI 10.1109/ICWS.2010.66
[10] DOAS for flue gas monitoring .1. Temperature effects in the UV/visible absorption spectra of NO, NO2, SO2 and NH3
Mellqvist, J
Rosen, A
[J]. JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, 1996, 56 (02) : 187 - 208

← 1 2 3 →