摘要
研究了不同的烟气成分对电晕放电自由基簇射NO转化过程的影响.结果表明,烟气中的N2不利于流光电晕的形成.提高O2体积分数能够促进流光电晕的发展,增大放电电流,从而提高NO的脱除率以及NO向NO2的转化率.为了产生稳定而强烈的流光电晕,烟气中O2体积分数不应小于5%.在烟气中加入CO2,虽然能够促进流光电晕的形成并改善其稳定性,但是由于CO2的强电负性,大量增加CO2会抑制放电电流的产生以及氧化性自由基的产生,最终导致NO脱除率和NO向NO2的转化率降低.
The corona discharge radical shower NO conversion process was studied under different flue gas components. The following results were obtained： The N2 in the flue gas is disadvantage of the streamer formation. Increasing O2 volume fraction can improve the development of streamer and heighten the discharge current, which is helpful to increase NO removal rate and NO conversion rate into NO2. In order to produce stable and intensive streamer corona, the O2 volume fraction in the flue gas should not be lower than 5 % Adding CO2 in the flue gas can improve the formation and stability of streamer corona. However, a great deal of CO2 restrains the discharge current and decreases the production of oxidative radicals because of its strongly electronegative characteristics, which leads to reduction of NO removal rate and NO conversion rate into NO2.
出处
《浙江大学学报（工学版）》
EI
CAS
CSCD
北大核心
2008年第5期880-884,共5页
Journal of Zhejiang University：Engineering Science
基金
浙江省自然科学基金资助项目(Y507079)
浙江省工商大学青年人才基金资助项目(Q07-11)
浙江省教育厅资助项目(Y200702725)
国家“973”重点基础研究发展规划资助项目(2006CB200303)
关键词
烟气成分
电晕
NO
flue gas component
corona
NO
