低温等离子体还原NO的实验研究

文档编号:SW022  文档字数:13924,页数:28

摘要：近年来利用等离子体技术对气态污染物的氧化分解研究受到了广泛的关注。介绍了等离子体概念、分类及产生方法，简述了非平衡等离于体技术对气体污染物的降解原理，较全面地介绍了等离子体技术在脱硫、脱硝以及降解恶臭污染物等方面的研究。最后指出了今后等离子体处理废气的应用研究方向。
 低温等离子体技术是目前国内外公认的治理低浓度有害气体的有效方法之一，它具有分解效率高、能耗低、副产物少的优点而逐渐成为处理低浓度、大流量有害气体的重要方法。
 本文概述了低温等离子体的产生方法及其应用。着重对低温等离子体降解甲苯进行了研究，并对去除效率做了介绍。结果表明，利用低温等离子体技术，在常温常压下，对模拟废气中甲苯的去除效率达到74.9%。

关键词：等离子体；气态污染物；污染物控制；氮氧化物；还原
 
THE Experimental Study of Cold plasma reduction
Abstract:Non equilibrium plasma is capable of degrading most gaseous pollutants；its potentials for air pollution control has received more attention in recent years.The paper presents introductions to plasma.its classlfi—cation and generation as well as the fundamentals of using plasma for air pollution control such as degradation of SO2，NOx many VOCs and removal of particulate matters.The direction of future research in the plasma technology for airpollution applications is also covered in detail.
 Non-thermal plasma technology is recognized as one of the most effective ways to remove low-concentration gases. It became the important method to treated lower concentration and huge flux harmful gases, for its advantage of high degradation efficiency, low demanded energy, and less byproduction.
 Our work summarized the production method of non-thermal plasma and its  application.The results showed that the use of non-thermal plasma technology at room temperature and higher purging speed，removal efficiency of toluene reached 74.9%.
 
Keyword:Plasma Gaseous;Pollutant ;Pollution control ; Nitrogen oxide;Reduction

目 录
 中文摘要 I
 英文摘要 II
 目录 III
 1 绪  论 1
 1.1 等离子体概念 1
 1.2 等离子体产生机理及方法 2
 1.3 低温等离子体 2
 1.4 等离子体技术产生及在大气污染治理中的应用 3
 1.5 主要挥发性有机污染物及其危害性 5
 1.6 末端控制技术现状 6
 1.7 小结 9
 2 实验部分 10
 2.1 SP-6800气相色谱 10
 2.2 操作步骤 10
 2.3 实验装置及流程 11
 2.4 实验数据分析 12
 2.5 GC-9790气相色谱 13
 2.6 实验操作及步骤 14
 2.7 实验装置及流程 14
 2.8 酸性高锰酸钾溶液氧化法 14
 2.9 酚二磺酸光度法 16
 3 结果与讨论 17
 3.1 等离子体降解甲苯 17
     3.2 甲苯在氮气，氮气和氮氧化物，氮气和氧气环境下的降解 18
 3.3 结论 21
 4 总结与展望 21
 致谢 22
 参考文献 23

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