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http://dx.doi.org/10.5322/JES.2013.22.1.83

Effect of Al2O3 Addition on SF6 Decomposition by Microwave Irradiation  

Choi, Sung-Woo (Department of Environmental Science and Engineering, Keimyung University)
Publication Information
Journal of Environmental Science International / v.22, no.1, 2013 , pp. 83-89 More about this Journal
Abstract
Silicon carbide with aluminium oxide was used to remove the sulphur hexafluoride ($SF_6$) gas using microwave irradiation. The destruction and removal efficiencies (DREs) of $SF_6$ were studies as a function of various decomposition temperatures and microwave powers. The decomposition of $SF_6$ gas was analyzed using GC-TCD. XRD (X-ray powder diffraction) and XRF (X-ray Fluorescence Spectrometer) were used to characterize the properties of aluminum oxide. DREs of $SF_6$ were increased as the microwave powers were increased. Additive aluminium oxide on SiC increased the removal efficiencies and decreased the decomposition temperature. The XRD results show that the ${\gamma}-Al_2O_3$ was transformed to ${\alpha}-Al_2O_3$ during $SF_6$ decomposition by microwave irradiation. It was found that the best material to control $SF_6$ was SiC with $Al_2O_3$ 30 wt% in consideration of microwave energy consumption and $SF_6$ decomposition rate.
Keywords
$SF_6$; Microwave; SiC; $Al_2O_3$; Decomposition;
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Times Cited By KSCI : 3  (Citation Analysis)
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