低溫等離子體還原NO的實驗研究

生物工程論文編號:SW022  論文字數(shù):13924,頁數(shù):28

目 錄
 中文摘要 I
 英文摘要 II
 目錄 III
 1 緒  論 1
 1.1 等離子體概念 1
 1.2 等離子體產(chǎn)生機理及方法 2
 1.3 低溫等離子體 2
 1.4 等離子體技術(shù)產(chǎn)生及在大氣污染治理中的應用 3
 1.5 主要揮發(fā)性有機污染物及其危害性 5
 1.6 末端控制技術(shù)現(xiàn)狀 6
 1.7 小結(jié) 9
 2 實驗部分 10
 2.1 SP-6800氣相色譜 10
 2.2 操作步驟 10
 2.3 實驗裝置及流程 11
 2.4 實驗數(shù)據(jù)分析 12
 2.5 GC-9790氣相色譜 13
 2.6 實驗操作及步驟 14
 2.7 實驗裝置及流程 14
 2.8 酸性高錳酸鉀溶液氧化法 14
 2.9 酚二磺酸光度法 16
 3 結(jié)果與討論 17
 3.1 等離子體降解甲苯 17
     3.2 甲苯在氮氣，氮氣和氮氧化物，氮氣和氧氣環(huán)境下的降解 18
 3.3 結(jié)論 21
 4 總結(jié)與展望 21
 致謝 22
 參考文獻 23

摘要：近年來利用等離子體技術(shù)對氣態(tài)污染物的氧化分解研究受到了廣泛的關(guān)注。介紹了等離子體概念、分類及產(chǎn)生方法，簡述了非平衡等離于體技術(shù)對氣體污染物的降解原理，較全面地介紹了等離子體技術(shù)在脫硫、脫硝以及降解惡臭污染物等方面的研究。最后指出了今后等離子體處理廢氣的應用研究方向。
 低溫等離子體技術(shù)是目前國內(nèi)外公認的治理低濃度有害氣體的有效方法之一，它具有分解效率高、能耗低、副產(chǎn)物少的優(yōu)點而逐漸成為處理低濃度、大流量有害氣體的重要方法。
 本文概述了低溫等離子體的產(chǎn)生方法及其應用。著重對低溫等離子體降解甲苯進行了研究，并對去除效率做了介紹。結(jié)果表明，利用低溫等離子體技術(shù)，在常溫常壓下，對模擬廢氣中甲苯的去除效率達到74.9%。

關(guān)鍵詞：等離子體；氣態(tài)污染物；污染物控制；氮氧化物；還原
 
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