采用辉光放电等离子体的烟气处理技术研究

Abstract
Figure/Table
References (32)
Related Citation (2)

Download: PDF (882 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract

Based on the technology of atmospheric pressure glow discharge plasma in air, a multilayer mesh-like contact type electrode structure was used to form a large-area, uniform and stable glow discharge in the flue. During the discharge process, particles with high oxidative activity (·OH, O, O₃) were generated to remove the SO₂ and NO_x in flue gas. The characteristics of glow discharge plasma and the mechanism of desulfurization and denitrification with the contact electrode were discussed. The effects caused by different electrode layer numbers, oxygen concentrations and initial concentrations of gas to be treated were also analyzed. The results showed that removal rates of 96.3% for SO₂, 36.7% for NO_x, and oxidation rate of 91.2% for NO were obtained in the following experimental conditions:the layer number of mesh-like electrodes was 6; the concentration of oxygen was 8%; the reaction time of flue gas was 1.2s.With its high density of charged particles, the glow discharge plasma showed good energy utilization efficiency in the flue gas treatment.

Key words： atmospheric pressure glow discharge plasma in air contact electrode desulfurization and denitrification

Received: 12 January 2017

PACS:

X701

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	LIU Wen-zheng
	ZHAO Shuai
	CHAI Mao-lin
	NIU Jiang-qi
	ZHAO Qiang
	LI Jing-bo

Cite this article:

LIU Wen-zheng,ZHAO Shuai,CHAI Mao-lin等. Technology of flue gas treatment with glow discharge plasma[J]. CHINA ENVIRONMENTAL SCIENCECE, 2017, 37(8): 2905-2914.

URL:

http://manu36.magtech.com.cn/Jweb_zghjkx/EN/ OR http://manu36.magtech.com.cn/Jweb_zghjkx/EN/Y2017/V37/I8/2905

[1]	薛文博,许艳玲,王金南,等.全国火电行业大气污染物排放对空气质量的影响[J]. 中国环境科学, 2016,36(5):1281-1288.
[2]	胡强,熊志波,白鹏,等.铈钛掺杂促进铁氧化物低温SCR脱硝性能的机理[J]. 中国环境科学, 2016,36(8):2304-2310.
[3]	唐晓龙,郝吉明,易红宏,等.活性炭改性整体催化剂上低温选择性还原NOx[J]. 中国环境科学, 2007,27(6):845-850.
[4]	Bao J, Yang L, Yan J. Experimental study on demercurization performance of wet flue gas desulfurization system[J]. Chinese Journal of Chemistry, 2009,27(11):2242-2248.
[5]	张军,张涌新,郑成航,等.复合脱硫添加剂在湿法烟气脱硫系统中的工程应用[J]. 中国环境科学, 2014,34(9):2186-2191.
[6]	姚芝茂,邹兰,王宗爽,等.我国中小型燃煤锅炉SO2排放特征与控制对策[J]. 中国环境科学, 2011,31(1):1-5.
[7]	Yamamoto T, Fujishima H, Okubo M, et al. Pilot-scale NOx and SOx removal from boiler emission using indirect-plasma and chemical hybrid process[J]. IEEE Transactions on Industry Applications, 2010,46(1):29-37.
[8]	Anaghizi S J, Talebizadeh P, Rahimzadeh H, et al.The Configuration Effects of Electrode on the Performance of Dielectric Barrier Discharge Reactor for NO Removal[J]. IEEE Transactions on Plasma Science, 2015,43(6):1944-1953.
[9]	吴祖良,侯培,赵佳佳,等.电晕放电耦合湿式吸收同时脱硫脱硝的实验研究[J]. 高电压技术, 2016,42(2):398-404.
[10]	孙红华.介质阻挡放电低温等离子体脱硫脱硝研究[D]. 北京:华北电力大学, 2009.
[11]	Huang L W, Dang Y X. Removal of SO2 and NOx by pulsed corona combined with in situ Ca(OH)2 absorption[J]. Chinese Journal of Chemical Engineers, 2011,19(3):518-522.
[12]	白敏菂,毛首蕾,朱玉鹏,等.O2+、O3同时脱硫脱硝实验[J]. 中国环境科学, 2014,34(2):324-330.
[13]	Basfar A A, Fageeha O I, Kunnummal N, et al. Electron beam flue gas treatment (EBFGT) technology for simultaneous removal of SO2 and NOx from combustion of liquid fuels[J]. Fuel, 2007,87:1446-1452.
[14]	Chang M B, Kushner M J, Rood M J. Removal of SO2 and the simultaneous removal of SO2 and NO from simulated flue gas streams using dielectric barrier discharge plasmas[J]. Plasma Chemistry and Plasma Processing, 1992,12(4):565-579.
[15]	Liu W Z, Jia L Y, Yan W, et al. Study on the glow discharge in the atmospheric pressure[J]. Current Applied Physics, 2011,11(5):S117-S120.
[16]	Sun G L, Liu W Z, Li C H, et al. The generation characteristics of dielectric barrier glow plasma in air[C]. Journal of Physics:Conference Series, 2013.
[17]	白敏菂,杨波,王永伟.氧活性粒子脱除烟气中SO2的实验研究[J]. 中国环境科学, 2013,31(8):1263-1267.
[18]	闫克平,李树然,冯卫强,等.高电压环境工程应用研究关键技术问题分析及展望[J]. 高电压技术, 2015,41(8):2528-2544.
[19]	曹玮,骆仲泱,徐飞,等.脉冲电晕放电协同烟气脱硫脱硝试验研究[J]. 环境科学学报, 2008,28(12):2487-2492.
[20]	王文宗,武文江.火电厂烟气脱硫及脱硝实用技术[M]. 北京:中国水利水电出版社, 2009.
[21]	朱廷钰.烧结烟气净化技术[M]. 北京:化学工业出版社, 2009.
[22]	Liu W Z, Sun G L, Li C H, et al.A study of the glow discharge characteristics of contact electrodes at atmospheric pressure in air[J]. Physics of Plasmas, 2014,21:043514.
[23]	张鹏,洪延姬,沈双晏,等.介质阻挡放电等离子体的化学动力学效应研究[J]. 光谱学与光谱分析, 2015,35(3):706-710.
[24]	谢维杰,李龙梅,周保学,等.氧气常压介质阻挡放电的发射光谱及能量传递机理[J]. 物理化学学报, 2008,24(5):827-832.
[25]	Guan Z Z, Ren J X, Chen D Z, et al. NOx removal by non-thermal plasma at low temperatures with amino groups additives[J]. Korean Journal of Chemical Engineering, 2016,33:3102.
[26]	孙保民,尹水娥,肖海平,等.介质阻挡放电脱硫脱硝过程特性[J]. 化工学报, 2010,61(2):469-476.
[27]	尹水娥,孙保民,高旭东,等.介质阻挡放电中烟气相对湿度对脱硫脱硝的影响[J]. 动力工程学报, 2010,31(1):41-46.
[28]	朱益民.非热放电环境污染治理技术[M]. 北京:科学出版社, 2013.
[29]	吴祖良,高翔,李济吾,等.电晕放电自由基簇射同时脱硫脱硝反应特性分析[J]. 高校化学工程学报, 2008,22(2):325-331.
[30]	Tsci C H, Yang H H, Jou C J, et al. Reducing nitric oxide into nitrogen via a radio-frequency discharge[J]. Journal of Hazardous Materials, 2007,143(1/2):409.
[31]	Helfritch D J, Feldman P L, Efthimion P C, et al. Micro-wave energy for SO2 and NOx removal from flue gas[R]. DOE/PC/81002-T20. Washington, DC:U. S. Department of Energy, 1987.
[32]	Boyel J, Russel A, Yao S C, et al. Reduction of nitrogen oxide from post-combustion gases utilizing molecular radical species[J]. Fuel, 1993,72(10):1419-1427.