摘要
实验研究了直流电晕湿空气自由基簇射结合25%的NaOH溶液吸收的NOx脱除过程.结果表明:通过调节流过喷嘴电极中的空气流量,可以得到稳定的流光电晕;空气中水蒸汽对NOx脱除效率有影响;在反应器内同时有HNO2和HNO3生成;实验工况下,反应器NOx转化率45%以上,经吸收液吸收后系统总脱氮效率可达70%.
With moist air as the radical source, an experimental study was carried out for the removal of NO_x from flue gases by a DC corona discharge activated radical shower in conjunction with alkali solution (25% by weight of NaOH in water) scrubbing. The results of the study showed that a steady streamer corona could be obtained by adjusting the flow rate of the moist air fed into the nozzle electrode; the vapor in the moist air exerted an influence on the efficiency of NO_x removal; both HNO_2 and HNO_3 were simultaneously generated in the reactor with NO_x conversion rate being higher than 45%, and the overall efficiency of NO_x removal in the system can reach 70% after alkali solution scrubbing under the experimental conditions.
出处
《环境科学学报》
CAS
CSCD
北大核心
2004年第6期1074-1078,共5页
Acta Scientiae Circumstantiae
基金
国家"863"计划资助项目(2002AA529180)
博士点基金资助项目(20020335061)
浙江省科技计划项目(2003201509)
