烟气湿度对自由基簇射脱除烟气中的NO_X的影响

Effection of Humidity on Removal of NO_X from Flue Gas by Radical Injection

研究了直流电晕自由基簇射脱除含水烟气中的 NOX。研究表明 :烟气中水蒸气对电晕放电的 V-I特性有影响 ,调节喷嘴电极的气流可得到流光电晕 ;由于水蒸汽的存在 ,为 De NOX过程提供了更多的 OH自由基 ,适当提高烟气含水量可提高 De NOX效率和能量利用效率 ;烟气 De NOx 效率因其在反应器内滞留时间延长而提高。图 1 0参 1

This paper researches on the reduction of NO X from humid flue gas by DC corona radical shower systems. The experimental results show that the vapor in the flue gas impact on the V I characteristic of corona discharge, the steady streamer corona occur as adjusting the flow rate of the gas feeding into the nozzle electrodes; the vapor in the flue gas provide more radical of OH, the DeNO x efficiency and the energy yield of NO removal can be enhanced by raising the concentration of vapor of the flue gas properly; the longer the residence time of flue gas in the reactor, the higher the DeNO x efficiency arrives. Figs 10 and refs 10.