摘要
利用介质阻挡放电获得低温等离子体,开展了含氧气氛中利用低温等离子体转化NO的实验研究,研究了放电环境和添加C3H6对NO/O2/N2气氛中O3生成浓度与NO转化的影响。结果表明,冷却环境有利于O3的生成和NO转化率的提高;激励电压峰峰值升高时,O3生成浓度和NO转化率随之升高;添加C3H6有利于NO转化率的升高,且NOx浓度随激励电压峰峰值升高而下降;并探讨了NO/C3H6/O2/N2混合气放电时NO的转化机理。
Abstract： The non-thermal plasma was obtained by dielectric barrier discharge under atmospheric pressure, and the experimental research about NO conversion in the oxidation atmosphere by non-thermal plasma has been conducted. The effect of discharge voltage on the 03 formation and NO~ conversion at different discharge space temperatures was investigated. The results show that elevated discharge space temperature is not conducive to O：~ fbrmation and NO conversion. When C：~H6 is injected into discharged gas, the gas oxidation was obviously enhanced. NO conversion increased and NOx concentration decreased with increasing discharge voltage. Finally the mechanism of NO conversion during the discharge in mixtures of NO/C3H6/O2/N2 was studied by gas component detection.
出处
《汽车工程学报》
2011年第1期64-68,共5页
Chinese Journal of Automotive Engineering
基金
国家自然科学基金资助项目(50776041)
江苏省自然科学基金项目(BK2010330)
江苏省高校自然科学研究项目(10KJB470001)
江苏大学高级专业人才科研启动基金项目(10JDG051)
关键词
介质阻挡放电
NO转化率
O3
反应机理
Dielectric Barrier Discharge
NO conversion
Ozone
reaction mechanism
