| 高压脉冲放电等离子体活化NH3还原去除NO |
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| 引用本文： | 尹蓝,李胜利,鲍永征,玉晖,杨怀远.高压脉冲放电等离子体活化NH3还原去除NO[J].生态环境,2006,15(6):1176-1179. |
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| 作者姓名： | 尹蓝 李胜利 鲍永征 玉晖 杨怀远 |
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| 作者单位： | 1. 华中科技大学环境科学与工程学院环境工程系,湖北,武汉,430074
2. 武钢安环部,湖北,武汉,430083 |
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| 基金项目： | 国家自然科学基金项目(50177012) |
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| 摘 要： | NO如直接排放会引起酸雨、光化学烟雾等一系列大气环境问题,采用高压脉冲放电等离子体活化NH3还原去除NO,这种新方法结合了脉冲放电等离子体技术和催化还原技术的优点来提高NO的去除率。采用浸渍法制备催化剂V2O5/TiO2,用NH3作为还原气体,升温的同时利用针头作为阳极,大地作为阴极进行放电处理。结果表明,在有氧条件下(含氧量为10%),当V2O5含量为4.5%,温度为310℃,脉冲电源电压在14000～22000V变化时,NO的去除率可达95.3%。还探讨了放电等离子体活化NH3去除NO的机理。
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| 关 键 词： | 等离子体 氨气 一氧化氮 |
| 文章编号： | 1672-2175（2006）06-1176-04 |
| 收稿时间： | 2006-07-03 |
| 修稿时间： | 2006年7月3日 |
Activation of NH3 and catalytic reduction of NO by high voltage pulse discharging plasma |
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| YIN Lan,LI Shengli,BAO Yongzheng,YU Hui,YANG Huaiyuan.Activation of NH3 and catalytic reduction of NO by high voltage pulse discharging plasma[J].Ecology and Environmnet,2006,15(6):1176-1179. |
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| Authors: | YIN Lan LI Shengli BAO Yongzheng YU Hui YANG Huaiyuan |
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| Affiliation: | 1. Environmental Science and Engineering College of Huazhong Science and Technology University, Wuhan 430074, China; 2. Institute of Safety Environment Protection in Wuhan Iron and Steel Company, Wuhan 430083, China |
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| Abstract: | If nitric oxide (NO) emitted directly cause acid rain, smog and other air pollution. In this study, activation of NH3 and catalytic reduction of NO by high voltage pulse discharging plasma. This new method combines the pulsed discharge plasma tech- nology and catalytic reduction to enhance the efficiency of NO removal. Using V2O5/TiO2 catalyst prepared by dipping, under oxy- gen existing conditions, when the temperature is 583 k, the voltage is 14~22 kV and the content of V2O5 is 4.5%, the NO removal efficiency can reached 95.3%. This paper also discusses the reaction mechanism of remove NO. |
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| Keywords: | plasma NH_3 NO |
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