旋流板塔处理含氮氧化物废气的工程实践  

Industrial Treatment of Nitrogen Oxide Waste Gas with Rotating-Stream-Tray Scrubber

作　　者：孙永强[1] 陈建孟[1] 宋爽[1] 

机构地区：[1]浙江工业大学生物与环境工程学院,杭州310032

出　　处：《科技通报》2007年第5期751-754,共4页Bulletin of Science and Technology

基　　金：国家自然科学基金(20276067);国家863计划(2002AA649310)资助项目

摘　　要：以旋流板塔为主设备,采用二级还原碱液吸收法处理某化工厂含氮氧化物废气(4500 m3/h),在液气比3.6 L/m3条件下,治理后排放的氮氧化物平均浓度从初始的791 mg/m3降至96 mg/m3,平均排放速率从3.37 kg/h削减至0.41 kg/h,平均去除效率达到87.8%。The application of deoxidize alkali absorb process in 4500 m^3/h NOx waste gas was introduced. The scrubber used in this process was a rotating-stream-tray （RST） column. The results indicated that the average concentration of NOx was decreased from 791 mg/m^3 to 96 mg/m^3, and the average discharged rate was decreased from 3.37 kg/h to 0.41 kg/h when the liquid-gas ratio was about 3.6L/m^3. Meanwhile, the average denitrification efficiency of the process could reach up to 87.8%.

关 键 词：旋流板塔 氮氧化物 空气污染控制 

分 类 号：X701[环境科学与工程—环境工程]