| 酸性NaClO_2溶液同时脱硫、脱硝的试验研究 |
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| 引用本文： | 刘凤,赵毅,王亚君,汪黎东.酸性NaClO_2溶液同时脱硫、脱硝的试验研究[J].动力工程,2008,28(3):425-429. |
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| 作者姓名： | 刘凤 赵毅 王亚君 汪黎东 |
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| 作者单位： | 华北电力大学,保定,071003 |
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| 摘 要： | 以NaClO2溶液为吸收剂,在自行设计的小型鼓泡反应器中进行了烟气同时脱硫、脱硝的实验研究,分析了影响脱除效率的各种因素及规律.试验发现,NaClO2初始浓度、吸收溶液初始pH值、吸收液温度、SO2和NO初始浓度等对脱除效率影响较大;在确定的最佳试验条件下,脱硫、脱硝效率分别达到100%和95.2%.另外还利用光化学方法分析了脱硫、脱硝产物,结果表明:脱硫产物主要为SO24-,脱硝产物主要为NO3;在此基础上,提出了酸性NaClO2溶液脱硫、脱硝的反应机理.
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| 关 键 词： | 环境科学 烟气 脱硫 脱硝 鼓泡反应器 氧化吸收 酸性 溶液 脱硫产物 脱硝效率 试验条件 研究 Solutions Acidic 反应机理 结果 化学方法 利用 最佳 效率影响 脱除效率 液温度 吸收剂 初始浓度 发现 规律 |
Simultaneous Removal of SO_2 and NO by NaClO_2 Acidic Solutions |
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| LIU Feng,ZHAO Yi,WANG Ya-jun,WANG Li-dong.Simultaneous Removal of SO_2 and NO by NaClO_2 Acidic Solutions[J].Power Engineering,2008,28(3):425-429. |
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| Authors: | LIU Feng ZHAO Yi WANG Ya-jun WANG Li-dong |
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| Abstract: | Experiments for studying simultaneous removal of SO_2 and NO from simulated flue gas,with NaClO_2 solutions as the absorbents,were investigated in a self-designed bubble reactor,while various influencing factors on the removal efficiencies analyzed.Experimental results show that,all the original concentration,pH value and temperature of absorbent NaClO_2 solution as well as the concentration of SO_2 and NO,have a significant influence on the removal efficiency. Under optimal conditions determined by considering former experimental results,removal efficiencies of SO_2 and NO respectively reached 100% and 95.2%.Besides, products of desulfurization and denitrification were analyzed by photochemical methods,and the results show that sulfate radical ion is the main desulfurization product,while nitrate radical ion is the main denitrification product.According to product analysis,the desulfurization and denitrification mechanism of NaClO_2 acidic solutions is proposed. |
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| Keywords: | environmental science flue gas desulfurization denitrification bubble reactor oxidation adsorption |
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