| 应用脉冲放电等离子体氧化NO、SO2的影响因素 |
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| 引用本文： | 王晓臣,商克峰.应用脉冲放电等离子体氧化NO、SO2的影响因素[J].高电压技术,2009,35(5):1122-1126. |
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| 作者姓名： | 王晓臣 商克峰 |
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| 作者单位： | 王晓臣,WANG Xiao-chen(辽宁省大气污染防治管理中心,沈阳,110034);商克峰,SHANG Ke-feng(东北大学秦皇岛分校环境科学与工程系,秦皇岛,066004)
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| 基金项目： | 国家高技术研究发展计划(863计划)，河北省科学技术研究发展指导项目 |
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| 摘 要： | 在典型的脉冲放电烟气脱硫、脱硝工艺中,NO和SO2主要通过氧化反应转化为相应的高价氨盐化合物脱除,因此如何促进污染物的氧化反应是该技术的关键问题之一。为此,采用丙烯作为添加剂,研究了脉冲频率、烟气中水蒸气的体积分数、注入丙烯的体积分数、SO2等对NO的氧化产物的影响。实验结果表明:烟气中不存在SO2时,NO氧化的主要产物是NO2,且NO2生成的选择性随脉冲频率的上升、水蒸气体积分数的增大而下降,随注入丙烯体积分数的增大而增大。综合考虑到脱硝能耗,丙烯按1倍NOx的体积分数注入烟气为佳;烟气中存在SO2时,NO氧化生成的NO2可以生成硝酸盐,NO2生成的选择性较低,因此SO2可以促进氮氧化物的脱除。
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| 关 键 词： | 脉冲放电 等离子体 超氧自由基 脱硝 脱硫 丙烯 |
Factors Influencing the Oxidation of NO and SO_2 by Pulsed Discharge Plasma |
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| WANG Xiao-chen,SHANG Ke-feng.Factors Influencing the Oxidation of NO and SO_2 by Pulsed Discharge Plasma[J].High Voltage Engineering,2009,35(5):1122-1126. |
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| Authors: | WANG Xiao-chen SHANG Ke-feng |
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| Affiliation: | 1. Liaoning Academy of Environmental Sciences;Shenyang 110034;China;2. Department of Environmental Science and Technology;Northeastern University at Qinhuangdao;Qinhuangdao 066004;China |
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| Abstract: | NO and SO2 were mainly oxidized to their corresponding ammonium compounds in the typical pulse discharge de-NOx/de-SO2 processes,so how to enhance the oxidation of NO/SO2 is very important in waste gas treatment containing NO/SO2. The influence of factors such as the pulse frequency,the volume content of water vapor and C3H6 and the existence of SO2 in flue gas on the oxidation products of NO was studied. Experimental results revealed that NO was mainly oxidized to NO2 when SO2 does not exist in flue gas,an... |
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| Keywords: | pulse discharge plasma peroxide radicals de-NOx de-SO2 propene |
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