Study of Hydrogen Sulfide Removal Using Dielectric Barrier Discharge

Abstract

An experimental research on hydrogen sulfide removal by DBD was carried out. This study explored the influences of initial concentration ,gas flow rate, applied voltage and frequency on hydrogen sulfide removal. In addition, the differences among the no packing and ceramic raschig-ring packing in the reactor were discussed. Meanwhile, during plasma processing to decompose hydrogen sulfide, SIE was analyzed using the Q–V Lissajous diagram. The experiment data suggested that hydrogen sulfide removal efficiency raised with the addition of the applied voltage, frequency and the reducing of the initial concentration of hydrogen sulfide and gas flow; it was found that under the following conditions: applied voltage 19 kV, frequency 300 Hz, gas flow rate 8 L/min, inlet gas concentration of hydrogen sulfide 30.1 mg/m3, the hydrogen sulfide removal reached the maximum of 100%. In the presence of the packing, hydrogen sulfide removal efficiency was higher than in the case of no packing, 93.26% for the former reactor and 69.29% for the latter.