采用輝光放電等離子體的煙氣處理技術研究
發(fā)布時間:2019-06-04 01:44
【摘要】:基于大氣壓空氣輝光放電等離子體技術,采用多層網(wǎng)狀接觸式電極結構在煙道中形成大面積均勻穩(wěn)定的輝光放電.利用放電過程中產(chǎn)生的強氧化活性粒子(·OH、O、O_3)氧化脫除煙氣中的SO_2和NO_x.探討接觸式電極下輝光放電等離子體的生成特性和脫硫脫硝反應機制,分析不同電極層數(shù)、氧氣濃度和待處理氣體初始濃度等實驗條件下的煙氣處理效果.結果表明,在6層網(wǎng)狀電極,氧氣濃度為8%,煙氣停留時間為1.2s的實驗條件下,脫硫率在96.3%以上,NO氧化率為91.2%,脫硝率為36.7%.輝光放電等離子體以其高密度的帶電粒子特性在煙氣處理中顯示出良好的能量利用效率.
[Abstract]:Based on the atmospheric pressure air glow discharge plasma technology, a large area uniform and stable glow discharge is formed in the flue by using a multi-layer reticulated contact electrode structure. Removal of SO_2 and NO_x. from flue Gas by Oxidation of strongly oxidized active particles (OH,O,O_3) produced during discharge The formation characteristics of glow discharge plasma under contact electrode and the mechanism of desulphurization and denitrification were discussed. The effects of flue gas treatment under different electrode layers, oxygen concentration and initial concentration of gas to be treated were analyzed. The results showed that under the experimental conditions of 6 layer reticulated electrode, oxygen concentration 8% and flue gas residence time 1.2 s, the desulphurization rate was over 96.3%, the oxidation rate of NO was 91.2%, and the denitrification rate was 36.7%. Glow discharge plasma shows good energy utilization efficiency in flue gas treatment because of its high density charged particle characteristics.
【作者單位】: 北京交通大學電氣工程學院;北京睿昱達科技有限公司;
【基金】:北京市科技計劃專項(Z15010101478)
【分類號】:X773
本文編號:2492382
[Abstract]:Based on the atmospheric pressure air glow discharge plasma technology, a large area uniform and stable glow discharge is formed in the flue by using a multi-layer reticulated contact electrode structure. Removal of SO_2 and NO_x. from flue Gas by Oxidation of strongly oxidized active particles (OH,O,O_3) produced during discharge The formation characteristics of glow discharge plasma under contact electrode and the mechanism of desulphurization and denitrification were discussed. The effects of flue gas treatment under different electrode layers, oxygen concentration and initial concentration of gas to be treated were analyzed. The results showed that under the experimental conditions of 6 layer reticulated electrode, oxygen concentration 8% and flue gas residence time 1.2 s, the desulphurization rate was over 96.3%, the oxidation rate of NO was 91.2%, and the denitrification rate was 36.7%. Glow discharge plasma shows good energy utilization efficiency in flue gas treatment because of its high density charged particle characteristics.
【作者單位】: 北京交通大學電氣工程學院;北京睿昱達科技有限公司;
【基金】:北京市科技計劃專項(Z15010101478)
【分類號】:X773
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