脉冲放电等离子体烟气脱硫脱硝工业试验  

INDUSTRIAL EXPERIMENTS ON DESULFURIZATION AND DENITROGENATION OF FLUE GASES BY PULSED CORONA INDUCED PLASMA CHEMICAL PROCESS

作　　者：陈伟华[1] 任先文[1] 王保健[1] 杨睿戆[1] 涂国锋[1] 李小金[1] 任志凌[1] 徐建[1] 赵君科[1] 

机构地区：[1]中国工程物理研究院环保工程研究中心,四川绵阳621900

出　　处：《能源环境保护》2006年第1期17-22,共6页Energy Environmental Protection

基　　金：国家高技术研究发展计划资助项目(2001AA642010)

摘　　要：40000—50000Nm^3／h工业试验结果表明：烟气温度75℃-80℃，脱硫效率大于90％，脱硝效率大于40％，烟气温度90℃-95℃，脱硫效率大于80％，脱硝效率大于50％；能耗小于3.0Wh／Nm^2；随着温度升高，SO2热化学反应效率逐渐降低；随着氨硫化学计量比增大，氨泄漏逐渐增加，烟气温度90℃。95％，氨泄漏增加更为迅速。并分析了副产物的成分，阐述了脱硫脱硝的机理，探讨了烟气排放的温度。Industrial experiments have been conducted on an industrial middle scale set with the flue gas flow at 40 000 to 50 000 Nm^3/h and the results indicate as followings： The removal efficiencies of the SO2 and the NOx are over 90% and 40% at the temperature from 75℃ to 80℃, separately; However, while the temperature is in the range firm 90℃ to 95℃, the removal efficiencies of the SO2 and the NOx are over 80% and 50%, separately; And the energy consumption in this system is less than 3.0Wh/ Nm^3; And the SO2 removal efficiency via the thermal reaction declines gradually with the temperature increasing; In addition, with the stoichiometric ratio of the NH3 and SO2 increasing, the NH3 leakage increases, and rather large amount of the NH3 leakage is observed while the temperature is from 90℃ to 95℃. Meanwhile, the ingredient of the by - product is investigated, and the mechanisms of the desulphurization and the denitrogenation and the outlet gas temperature are discussed in this paper.

关 键 词：脱硫脱硝 脉冲电晕 热化学反应 氨泄漏 副产物 

分 类 号：X701[环境科学与工程—环境工程]