초록 |
Destruction of CHF3 investigated in a dielectric barrier discharge reactor immersed in an electrically insulating oil bath. The feed gases were a mixed of CHF3, O2 and N2, with an O2/N2 volume ratio of 21/79. We examined the effect of applied voltage, applied frequency and initial CHF3 concentration in feed on the reaction. The conversion of CHF3 improved with increased applied voltage and frequency, and the decreased initial CHF3 concentration in feed. Moreover, an increased in the initial CHF3 in feed from 5% to 15 % did not change significantly the conversion of CHF3, or the selectivity of CO and CO2. Approximately 98.98% of CHF3 in feed was destructed under an applied voltage of 7 kV, an applied frequency of 30 kHz and an initial CHF3 concentration of 5%. However, the optical emission of (CHF3, O2 and N2) plasma showed that the products included nitric oxide compounds. |