| 摘要 |
<p>PURPOSE:To collect sulfur oxide and nitrogen oxide as solid matters together with dust in an electrostatic precipitator by projecting a pulse streamer to exhaust gas to produce various radicals and allowing them to react with sulfur oxide and nitrogen oxide incorporated in the exhaust gas and furthermore to react with coexisting NH3. CONSTITUTION:An electrostatic precipitator 11 is separated into a charge reaction part 12 and a dust collection part 13. In the charge reaction part 12, pulse electrodes 14 and ground-side electrodes 15 are staggered arranged respectively and pulse streamers are uniformly generated in the space. Further in the dust collection part 13, dust collection parts 16 and discharge electrodes 17 are provided. Ammonia (NH3) is added into exhaust gas and this exhaust gas of this state is passed through the charge reaction part 12 and subjected to irradiation with pulse streamers. Thereby various radicals are produced by H2O and O2 or the like incorporated in exhaust gas. These radicals are allowed to react with sulfur oxide and nitrogen oxide incorporated therein and furthermore to react with the added NH3 and these oxides are converted into solid matters such as ammonium sulfate and ammonium nitrate. The solid matters are collected in the dust collection part 13 together with dust.</p> |
