| 次氯酸钠湿法烟气脱硝及同时脱硫脱硝技术研究 |
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| 引用本文： | 肖灵,程斌,莫建松,王海强,吴忠标.次氯酸钠湿法烟气脱硝及同时脱硫脱硝技术研究[J].环境科学学报,2011,31(6):1175-1180. |
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| 作者姓名： | 肖灵 程斌 莫建松 王海强 吴忠标 |
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| 作者单位： | 1. 淅江大学环境工程研究所,杭州310027;浙江省工业锅炉炉窑烟气污染控制工程技术研究中心,杭州310027
2. 浙江省工业锅炉炉窑烟气污染控制工程技术研究中心,杭州,310027 |
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| 基金项目： | 国家高技术研究发展计划项目(No.2007AA061701);教育部长江学者奖励计划(2009) |
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| 摘 要： | 采用NaClO作氧化吸收剂,在鼓泡反应装置进行了湿法烟气脱硝实验研究,考察了NaIO、NO浓度、液相温度、气体流量、pH对脱硝效率的影响以及SO2对同时脱硫脱硝效率的影响,并结合液相产物分析探讨了同时脱硫脱硝反应机理.研究结果表明,pH值是影响活性成分HClO存在形式的重要因素,同时也是影响氧化吸收的关键因素;在一定范...
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| 关 键 词： | NaClO 湿法脱硝 同时脱硫脱硝 机理 |
| 收稿时间： | 2010/9/27 0:00:00 |
| 修稿时间： | 2010/11/25 0:00:00 |
Removal of NO and SO2 from flue gas by wet scrubbing using aqueous NaClO solution |
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| XIAO Ling,CHENG Bin,MO Jiansong,WANG Haiqiang and WU Zhongbiao.Removal of NO and SO2 from flue gas by wet scrubbing using aqueous NaClO solution[J].Acta Scientiae Circumstantiae,2011,31(6):1175-1180. |
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| Authors: | XIAO Ling CHENG Bin MO Jiansong WANG Haiqiang and WU Zhongbiao |
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| Institution: | Department of Environment Engineering, Zhejiang University, Hangzhou 310027;Zhejiang Provincial Engineering Research Center of Industrial Boiler & Furnace Flue Gas Pollution Control, Hangzhou 310027,Zhejiang Provincial Engineering Research Center of Industrial Boiler & Furnace Flue Gas Pollution Control, Hangzhou 310027,Zhejiang Provincial Engineering Research Center of Industrial Boiler & Furnace Flue Gas Pollution Control, Hangzhou 310027,Department of Environment Engineering, Zhejiang University, Hangzhou 310027;Zhejiang Provincial Engineering Research Center of Industrial Boiler & Furnace Flue Gas Pollution Control, Hangzhou 310027 and Department of Environment Engineering, Zhejiang University, Hangzhou 310027;Zhejiang Provincial Engineering Research Center of Industrial Boiler & Furnace Flue Gas Pollution Control, Hangzhou 310027 |
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| Abstract: | Experiments on DeNOx were conducted in a lab-scale bubbling reactor with NaClO as the oxidant and sorbent. We studied the main factors influencing NO conversion efficiency, and propose a reaction mechanism of simultaneous removal of NO and SO2 by NaClO. The results indicated that initial pH was a significant factor in the denitrification process. The NO conversion efficiency was improved by increasing the NaClO concentration and the inlet NO concentration, while high solution temperature was not beneficial for the removal of NO. At pH 5.5, NaClO was an excellent scrubbing medium for the absorption of NO. The best absorption efficiency among the individual DeNOx experiments was 43.24%. The results of the combined DeSOx/DeNOx experiments showed that SO2 could improve the absorption of NO2, and the best DeNOx and DeSOx efficiencies reached 53.03% and 100%, respectively. Thus, NaClO could be an excellent oxidant and sorbent for simultaneous removal of SO2 and NO. |
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| Keywords: | NaClO denitrification simultaneous removal of SO2 and NOx mechanism |
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