论文部分内容阅读
The effects of the voltage waveform, discharge tooth wheel number and CO_2/NO/SO_2 concentration in the simulated flue gas on Hg~0 oxidation were investigated using a link tooth wheel-cylinder reactor energized by different high voltage power supplies. Negative DC discharge induced more ozone and obtained a higher Hg~0 oxidation efficiency than positive DC discharge and 12 kHz AC discahrge. The discharge tooth wheel number had almost no effect on the maximum Hg~0 oxidation efficiency. The allowable supplied voltage decreased with the increase of the discharge tooth wheel number. CO_2 stabilized the discharge process and increased the maximum voltage to maintain a stable discharge. It has also been found that NO consumed O_3 induced by high voltage discharge, thereby decreasing Hg~0 oxidation efficiency, while SO_2 had a slight promoting effect on Hg~0 oxidation.