论文部分内容阅读
模拟烟气的脉冲放电等离子体活化法脱除SO2和NOx的实验研究与理论分析表明:SO2和NOx的脱除主要依靠物理分解和化学反应两个脱除过程;化学反应脱除是提高脱除效率的主要过程,这一过程主要依赖于在电晕场中自由基O、OH和HO2的产量.增加反应器的注入能量和烟气水含量可适当地增加自由基OH的产量,促使SO2和NOx向H2SO4和HNO3转化,H2SO4凝结成“酸雾”气溶胶而被反应器捕集.在反应器单位体积烟气注入能量P=4W·h/m3和不发生火花放电的条件下,烟气最佳含水体积分数为10%~15%
Experimental and theoretical analysis of SO2 and NOx removal by pulsed discharge plasma-activated plasma with simulated flue gas showed that the removal of SO2 and NOx depended mainly on two processes: physical decomposition and chemical reaction, and removal of chemical reaction Efficiency of the main process, this process depends on the corona field in free radicals O, OH and HO2 production. Increasing the injection energy of the reactor and the water content of the flue gas can appropriately increase the yield of free radicals OH, promote the conversion of SO2 and NOx into H2SO4 and HNO3, and condense the H2SO4 into “acid mist” aerosol to be captured by the reactor. Under the condition of P = 4W · h / m3 and no spark discharge, the optimal moisture content of flue gas is 10% ~ 15%