Sulfur dioxide anion radical (SO2-) doping of strontium titanate (SrTiO3) and strontium zirconate (SrZrO3) by cyclic (carbon disulfide-oxygen) processing

1986 ◽  
Vol 90 (13) ◽  
pp. 3003-3005 ◽  
Author(s):  
Michiko Yonemura ◽  
Tadao Sekine ◽  
Hisashi Ueda
Keyword(s):  
Sulfur Dioxide ◽  
Strontium Titanate ◽  
Carbon Disulfide ◽  
Anion Radical ◽  
Strontium Zirconate

Real-Time Measurement of SO2, H2S, and CS2 Mixed Gases Using Ultraviolet Spectroscopy and a Least Squares Algorithm

2020 ◽  
pp. 000370282097322
Author(s):  
Zhaolun Cui ◽  
Xiaoxing Zhang ◽  
Dachang Chen ◽  
Yi Li ◽  
Yufei Wang ◽  
...  
Keyword(s):  
Hydrogen Sulfide ◽  
Sulfur Dioxide ◽  
Least Squares ◽  
Carbon Disulfide ◽  
Sulfur Hexafluoride ◽  
Quantitative Detection ◽  
Quantitative Calculation ◽  
Efficient Detection ◽  
High Concentrations ◽  
Mixed Gases

Sulfur dioxide, carbon disulfide, and hydrogen sulfide are important decomposition products of insulating gas sulfur hexafluoride, and their types and contents are of great significance for the fault diagnosis of SF6 insulated equipment. In this paper, a method of combining ultraviolet absorption spectroscopy and least squares fitting is proposed for the quantitative calculation of sulfur dioxide, carbon disulfide, and hydrogen sulfide mixed gases. All three gases have absorption peaks in the ultraviolet band and they overlap with each other which makes it hard to determinate the concentrations of the three gases directly. During the experiment, we found that high concentrations of sulfur dioxide and carbon disulfide interfered with the hydrogen sulfide calculation and the magnitude of this interference was positively correlated with these two gas concentrations. Therefore, we found a modified equation for the correction of hydrogen sulfide. Combined with this equation, accurate quantitative detection of three gases can be achieved. The detection ranges are 0.5–10 parts per million for sulfur dioxide and hydrogen sulfide, and 10–300 parts per billion for carbon disulfide. This paper provides a simple and efficient detection method, which is convenient for integration into detection equipment and it provides a support method for the diagnosis of sulfur hexafluoride decomposition gases.

Conversion of Sulfur Dioxide and Carbon Disulfide to Elemental Sulfur under Plasma-Induced Conditions

2004 ◽  
Vol 18 (2) ◽  
pp. 465-469 ◽  
Author(s):  
Cheng-Hsien Tsai ◽  
Ya-Fen Wang ◽  
Minliang Shih ◽  
Yi-Wen Luo
Keyword(s):  
Sulfur Dioxide ◽  
Carbon Disulfide ◽  
Elemental Sulfur
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