Journal
JOURNAL OF KOREAN SOCIETY FOR ATMOSPHERIC ENVIRONMENT
Volume 26, Issue 1, Pages 85-93Publisher
KOREAN SOC ATMOSPHERIC ENVIRONMENT
DOI: 10.5572/KOSAE.2010.26.1.085
Keywords
PFCs (Perfluorocompounds); Tetrafluoromethane (CF4); Elongated arc; Abatement
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CF4 removal characteristics were investigated using an elongated arc reactor. The advantage of the elongated arc reactor includes direct use of treated gas as plasma operating gas and the enhancement of the removal reaction by using a thermo-chemistry and a plasma induced chemistry at the same time. Geometrical configurations, such as the length of the reactor and the shape of a throat, were tested to get an optimized removal efficiency with low power consumption. As results, over 95% of CF4 removal was obtained with 300 lpm of total flowrate for various CF4 concentration (0.1 similar to 1%). Corresponding specific energy density (SED), which means required electrical energy to treat the unit volume of treated gas, is about 3.5 kJ/L, The present technique can be applied to real applications by satisfying three major concerns, those are the high flowrate of treated gas, high removal efficiency (> 95%), and low power consumption (< 10 kJ/L).
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