| 紫外辐照NaClO2溶液对NO转化率的影响 |
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| 引用本文： | 韩志涛,郑德康,杨少龙,潘新祥,冯军.紫外辐照NaClO2溶液对NO转化率的影响[J].科学技术与工程,2017,17(20). |
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| 作者姓名： | 韩志涛 郑德康 杨少龙 潘新祥 冯军 |
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| 作者单位： | 大连海事大学轮机工程学院,大连海事大学轮机工程学院,大连海事大学轮机工程学院,大连海事大学轮机工程学院,大连海事大学轮机工程学院 |
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| 基金项目： | 交通运输部科技计划项目;中央高校基本科研业务费专项资金资助;辽宁省教育厅科学研究一般项目资助 |
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| 摘 要： | 采用峰值波长为365 nm的UV光辐照预处理NaClO_2溶液,并基于模拟烟气系统和喷淋反应器开展脱硝实验,实验研究了UV辐照预处理时间、溶液浓度、溶液初始pH值等不同影响因素对NaClO_2溶液脱硝效果的影响。结果表明:UV辐照预处理可以明显强化NaClO_2溶液对NO转化率。与无UV辐照预处理相比,浓度为2 mmol/L、初始pH值为3的NaClO_2溶液经10 min UV辐照预处理,可使NO转化率从26.14%提高至83.86%,并对可能的反应机理进行了讨论分析。
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| 关 键 词： | 紫外光 亚氯酸钠 脱硝 氮氧化物 湿法洗涤 |
| 收稿时间： | 2016/12/29 0:00:00 |
| 修稿时间： | 2017/2/7 0:00:00 |
Effect of UV irradiation on NO conversions by wet scrubbing using NaClO2 solution |
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| Han Zhitao,Zheng Dekang,Yang Shaolong,Pan Xinxiang and Feng Jun.Effect of UV irradiation on NO conversions by wet scrubbing using NaClO2 solution[J].Science Technology and Engineering,2017,17(20). |
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| Authors: | Han Zhitao Zheng Dekang Yang Shaolong Pan Xinxiang and Feng Jun |
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| Institution: | Marine Engineering College, Dalian Maritime University,Marine Engineering College, Dalian Maritime University,Marine Engineering College, Dalian Maritime University,Marine Engineering College, Dalian Maritime University,Marine Engineering College, Dalian Maritime University |
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| Abstract: | NaClO2 solution is pretreated with UV irradiation with the peak wavelength of 365 nm before scrubbing to remove NO from the simulated flue gas in a continuous lab-scale reactor. The effects of the pretreatment duration of UV irradiation, the NaClO2 concentrations, and the initial solution pH value on the NO removal efficiency are investigated preliminarily. The results show that, the pretreatment of UV irradiation can enhance the NO remove efficiency of NaClO2 solution obviously. When there is no UV irradiation, NO removal efficiency for 2 mM NaClO2 solution is only 26.14%, which will increase to 83.66% by adjusting the initial solution pH to 3 and pretreating with UV irradiation for 10 min. The possible reaction mechanism is also discussed. |
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| Keywords: | ultraviolet chlorite sodium denitrification nitrogen oxides wet scrubbing |
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