| 摘要 |
<p>PURPOSE:To add NH3 formed by the decomposition of urea to the gas inflow side of a corona discharge denitrating device, enhance the reaction with NOx in corona discharge feed, and improve the denitrating performance. CONSTITUTION:An AC voltage is charged to a discharge electrode having a dielectric 12 on the grounding electrode side between a discharge electrode 11 and a grounding electrode 13 to generate a corona discharge. A urea decomposing device is provided on the gas inflow side of a corona discharge tube, and a gas purifying tower for forming a hydrocarbon solution is provided on the gas outflow side of the discharge tube. Thus, NOx, soot and dust in the exhaust gas of a diesel engine or gas engine are economically removed, which can contribute to the environmental improvement.</p> |
