摘要
为了深入了解NO和SO2在介质阻挡放电反应器中的反应机理,研究了烟气中水蒸气含量对脱硫脱硝效率以及功耗的影响.试验结果表明:烟气中水蒸气含量对介质阻挡放电脱硫脱硝的效率有较大的影响,在N2/NO/SO2/H2O体系中,水蒸气含量的增加会造成放电功耗增大,使NO脱除效率降低、SO2脱除效率明显提高,并对生成产物NO2的浓度也有一定的影响.利用红外光谱分析反应产物,发现NO和SO2在介质阻挡放电反应器中会生成NO2、N2O、HNO3、H2SO4、SO3等物质.
To understand the reaction mechanisms of the NO and SOz in the dielectric barrier discharge （DBD） reactor, the influence of the water vapor concentration on the plasma reduction of NO a＇nd SO2 from humid flue gas and the discharge power consumption has been studied. Experimental results show that the water vapor in the flue gas has great impact on the desulfurization and denitrifieation efficiency. In the discharge of N2/NO/SO2/H2O, higher water vapor concentration leads to the higher discharge power consumption and lower NO femoral efficiency, as well as lower yield of NO2. Meanwhile, increasing water vapor concentration enhances the SO2 removal efficiency. By using the fourier transform infrared spectroscopy, NO2, N2O, HNO3, H2SO4, and SO3 are detected in the final products of the plasma reaction.
出处
《动力工程》
CSCD
北大核心
2010年第1期41-46,共6页
Power Engineering
基金
北京市教育委员会共建项目专项资助项目
关键词
介质阻挡放电
烟气
相对湿度
脱硫
脱硝
功耗
自由基
dielectric barrier discharge
flue gas
relative humidity
desulfurization
denitrification
power consumption
free radicals
