介质阻挡放电脱硝的研究

黄超; 孙兆玮; 张宁; 陈丽丽; 吴哲

doi:10.3969/j.issn.1674-991X.2018.02.018

介质阻挡放电脱硝的研究

doi: 10.3969/j.issn.1674-991X.2018.02.018

河北工业大学能源与环境工程学院,天津 300401

详细信息

作者简介:
黄超(1960—),男,教授,博士生导师,博士,主要研究方向为大气污染与防治工程、清洁发展机制、节能减排,huangchao@hebut.edu.cn

中图分类号: X701
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出版历程
- 收稿日期: 2017-09-28
- 刊出日期: 2018-03-20

Study on denitration by dielectric barrier discharge technology

College of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, China

摘要

摘要: 介质阻挡放电(DBD)作为低温等离子体技术常被用于烟气中污染物的脱除。研究了利用DBD技术脱除烟气中一氧化氮(NO)的效果,以及氧气(O₂)、乙烯(C₂H₄)和放电区间活性炭添加对NO脱除率的影响。结果表明:当O₂浓度小于3%时,O₂的增加对NO的脱除有促进作用;大于3%时,O₂的增加会产生过量的氧自由基(·O),对NO的脱除产生抑制作用。添加活性炭和C₂H₄均能明显提升NO的脱除效果。在三者结合作用下,NO的脱除率可达到90%,特别是C₂H₄的增加对NO的脱除有促进作用。
- 介质阻挡放电 /
- 脱硝 /
- 乙烯气体 /
- 活性炭
Abstract: Dielectric barrier discharge (DBD) technology is a kind of low-temperature plasma technology which is often used in the removal of pollutants in flue gas. The effect of nitric oxide removal by DBD was studied, and the influences of oxygen content, ethylene content and the addition of activated carbon in the discharge interval on the removal efficiency of nitric oxide were analyzed. The results show that when the oxygen content is less than 3%, the increase of oxygen promotes the removal of nitric oxide, while under the oxygen content of more than 3%, the increase of oxygen will produce excessive oxygen free radical (·O), which inhibits the removal of nitric oxide. The removal efficiency of nitric oxide can be improved by adding activated carbon and ethylene. Through the combination of DBD, activated carbon and ethylene, the removal efficiency of nitric oxide can go up to 90%, and especially the addition of ethylene can promote the removal of nitric oxide.
- dielectric barrier discharge /
- denitrification /
- ethylene /
- activated carbon

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参考文献(15)

[1]	王天泽, 楚英豪, 郭家秀 , 等. 烟气脱硝技术应用现状与研究进展[J]. 四川环境, 2012,31(6):106-110. doi: 10.3969/j.issn.1001-3644.2012.03.023 WANG T Z, CHU Y H, GUO J X , et al. Status quo of application and development of flue gas denitration technology[J]. Sichuan Environment, 2012,31(6):106-110. doi: 10.3969/j.issn.1001-3644.2012.03.023
[2]	梁文俊, 李晶欣, 竹涛 , 等. 低温等离子体大气污染控制技术及应用[M]. 北京: 化学工业出版社, 2016: 172-207.
[3]	蔡忆昔, 刘志楠, 赵卫东 , 等. 介质阻挡放电特性及其影响因素[J]. 江苏大学学报(自然科学版), 2005,26(6):476-479. doi: 10.3969/j.issn.1671-7775.2005.06.005 CAI Y X, LIU Z N, ZHAO W D , et al. Characteristics and related factors of d ielectric barrier discharge[J]. Journal of Jiangsu University(Natural Science Edition), 2005,26(6):476-479. doi: 10.3969/j.issn.1671-7775.2005.06.005
[4]	MEI D H, TU X . Conversion CO₂ in a cylindrical dielectric barrier discharge reactor:effects of plasma processing parameters and reactor design[J]. Journal of CO₂ Utilization, 2017,19:68-78. doi: 10.1016/j.jcou.2017.02.015
[5]	CHANGE M B, BALBACH J H, ROOD M J , et al. Removal of SO₂ from gas streams using a dielectric barrier discharge and combined plasma photolysis[J]. Journal of Applied Physics, 1991,69(8):4409-4417. doi: 10.1063/1.348367
[6]	DHALI S K, SARDJA I . Dielectric barrier discharge for processing of SO₂/NO_x[J]. Journal of Applied Physics, 1991,69(9):6319-6324. doi: 10.1063/1.348830
[7]	余刚, 余奇, 顾璠 , 等. 介质特性对介质阻挡放电脱除NO影响试验研究[J]. 热能动力工程, 2003,5(9):475-477. doi: 10.3969/j.issn.1001-2060.2003.05.009
[8]	郭彬, 栾涛 . 介质阻挡放电低温等离子体脱硝性能研究[J]. 核聚变与等离子体物理, 2017,32(2):236-243. doi: 10.16568/j.0254-6086.201702019
[9]	赵娜, 吕瑞滨 . 烟气脱硫脱硝一体化的现状与发展[J]. 中国资源综合利用, 2011,29(10):31-33. ZHAO N, LÜ R B . Present situation and prospect of flue gas simultaneous desulfurization and denitrification[J]. China Resources Comprehensive Utilization, 2011,29(10):31-33.
[10]	SHIMIZU K, SAEKI S, YAMADA S . Emission spectrometry of NO or activated nitrogen species in non-thermal plasma[J]. Industry Applications Conference, 2002,3(3):1802-1809. doi: 10.1109/IAS.2002.1043777
[11]	王建根 . 介质阻挡放电反应器优化及其去除NO的研究[D]. 昆明:昆明理工大学, 2013. WANG J G . Research on optimizing dielectric barrier discharge reactor and the using for NO reduction[D]. Kunming:Kunming University of Science and Technology, 2013.
[12]	周志培 . 介质阻挡放电脱除烟气中NO的实验研究[D].北京:华北电力大学( 北京), 2010. ZHOU Z P . Removal of NO from the gas stream via dielectric barrier discharge[D].Beijing:North China Electric Power University( Beijing), 2010.
[13]	王文春, 吴彦, 李学初 , 等. NO,N₂气体中电晕放电高能电子密度分布的光谱实验研究[J]. 环境科学学报, 1998,18(1):51-55. doi: 10.3321/j.issn:0253-2468.1998.01.008
[14]	石慧明 . 介质阻挡放电与直流辉光放电中OH自由基的光谱诊断[D]. 大连:大连理工大学, 2009. SHI H M . The optical diagnosis of OH radical produced in dielectric barrier discharge and DC glow discharge[D]. Dalian:Dalian University of Technology, 2009.
[15]	TSAI C H, WANG Y F, HIS H , et al. Effects of ethylene on NO conversion and produte distributions in an RF discharge reactor[J]. Journal of Hazardous Materials, 2008,150(2):401-407. doi: 10.1016/j.jhazmat.2007.04.120