放电条件对电晕放电等离子体脱除羰基硫的影响研究
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摘要
采用了负电晕放电方法转化脱除羰基硫(COS),对不同电极形状、电极间距、温度、输入能量比(specific inputenergy,SIE)、转化效率、总能量产率进行考察。实验结果表明,圆钢型电极比锯齿型和狼牙棒型电极对COS的转化效果更好,从能量利用的角度考虑,圆钢型电极也比锯齿型和狼牙棒型更适合转化COS;极间距越小,COS的转化效率越高,总能量产率也越高;温度升高时,较低电压下就获得一定的转化效率,并且负载电压升高,COS的转化效率升高;相同SIE时,COS的转化效率随着温度的升高而降低。
Negative corona discharge was used to remove carbonyl sulfide(COS), and factors including electrode shape, electrode spacing, temperature, specific input energy(SIE), conversion efficiency and total energy yield were investigated. The results show that round bar electrode has better COS conversion effects than that of toothing bar and round toothing bar. Moreover, round bar electrode is also more suitable in energy utilization than toothing bar and round toothing bar. Smaller pole spacing can result in higher conversion efficiency and total energy yield. Observable conversion efficiency can be obtained at low voltage when temperature increases, which also increases with the increase of voltage. COS conversion efficiency decreases with the increase of temperature under same SIE.
Negative corona discharge was used to remove carbonyl sulfide(COS), and factors including electrode shape, electrode spacing, temperature, specific input energy(SIE), conversion efficiency and total energy yield were investigated. The results show that round bar electrode has better COS conversion effects than that of toothing bar and round toothing bar. Moreover, round bar electrode is also more suitable in energy utilization than toothing bar and round toothing bar. Smaller pole spacing can result in higher conversion efficiency and total energy yield. Observable conversion efficiency can be obtained at low voltage when temperature increases, which also increases with the increase of voltage. COS conversion efficiency decreases with the increase of temperature under same SIE.
引文
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[27]郑维.直流电晕放电OH自由基发射光谱研究[D].大连:大连理工大学,2007.ZGENG W.Optical study of OH radicals produced by DC corona discharge plasma[D].Dalian:Dalian University of Technology,2007.
[28]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.
[29]WANG M,ZHU T,LUO H,et al.Effects of reaction conditions on elemental mercury oxidation in simulated flue gas by DCnonthermal plasma[J].Industrial&Engineering Chemistry Research,2011,50(10):5914-5919.
[30]GE H,HU D,LI X,et al.Removal of low-concentration benzene in indoor air with plasma-MnO2,catalysis system[J].Journal of Electrostatics,2015,76:216-221.
[31]徐可.直流电晕放电分离转化含尘气体中的H2S[D].昆明:昆明理工大学,2016.XU K.Separation and transformation of H2S in the tail gas with dust DC corona discharge[D].Kunmig:Kunming University of Science and Technology,2016.
[32]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研究[J].高校化学工程学报,2008,22(2):325-331.WU Z L,GAO X,LI J W,et al.Reactive characteristics and mechanism of the SO2 and NOx simultaneous removal process using a radical shower electro-catalytic oxidation system[J].Journal of Chemical Engineering of Chinese Universities,2008,22(2):325-331.
[33]LIANG P,JIANG W,ZHANG L,et al.Experimental studies of removing typical VOCs by dielectric barrier discharge reactor of different sizes[J].Process Safety&Environmental Protection,2014,94:380-384.
[34]吕俊翔,刘军恒,孙平,等.荷电反应器状态对柴油机颗粒荷质比的影响[J].浙江大学学报(工学版),2017,51(12):2414-2419.LV J X,LIU J H,SUN P,et al.Effects of discharge reactor condition on charge-mass ratio of diesel articles[J].Journal of Zhejiang University(Engineering Science),2017,51(12):2414-2419.
[35]梁平.低臭氧负离子发生器优化实验研究及其电源的设计[D].大连:大连理工大学,2005.LIANG P.Study on optimum of low-ozone negative ion generator&its power supply design[D].Dalian:Dalian University of Technology,2005.
[36]晏乃强,吴祖成.脉冲电晕放电治疗有机废气的研究-放电反应器结构[J].上海环境科学,2000(6):278-281.YAN N Q,WU Z C.Study on removal of VOCs by pulse corona discharge-structure of discharge reactor[J].Shanghai Environmental Sciences,2000(6):278-281.
[37]张佳鹏,肖刚,王锡辉,等.高温环境下线管式电极结构直流放电特性实验研究[J].高电压技术,2014,40(1):242-249.ZHANG J P,XIAO G,WANG X H,et al.Experimental study on the DC discharge characteristics of wire-to-cylinder electrode configuration at high temperature[J].High Voltage Engineering,2014,40(1):242-249.
[38]XIAO G,WANG X,ZHANG J,et al.Characteristics of DC discharge in a wire-cylinder configuration at high ambient temperatures[J].Journal of Electrostatics,2014,72(1):13-21.
[39]陈波.大气压脉冲介质阻挡放电特性及放电参数效应研究[D].济南:山东大学,2013.CHEN B.Study oil characteristics of atmospheric-pressure pulsed dielectric barrier discharge and parameter effects of discharge[D].Jinan:Shandong University,2013.
[40]徐跃,邓小军.不同频率和温度的电晕放电对聚酰亚胺薄膜的损伤特性研究[J].绝缘材料,2014(1):85-88.XU Y,DENG X J.Study on the effect of corona discharge on the damage mechanism of polyimide film under different frequency and temperature[J].Insulating Materials,2014(1):85-88.
[2]LIU J,GENG M C,YU Y,et al.Uptake and conversion of carbonyl sulfide in a lawn soil[J].Atmospheric Environment,2007,41(27):5697-5706.
[3]WANG X,MA Y,NING P,et al.Adsorption of carbonyl sulfide on modified activated carbon under low-oxygen content conditions[J].Adsorption-Journal of the International Adsorption Society,2014,20(4):623-630.
[4]王红妍,易红宏,唐晓龙,et al.羰基硫脱除技术研究现状及进展[J].化学工业与工程,2010,27(1):67-72.WANG H Y,YI H H,TANG X L.Research status and development of carbonyl sulfide removal technology[J].Chemical Industry and Engineering,2010,27(1):67-72.
[5]李新学,刘迎新,魏雄辉.羰基硫脱除技术[J].现代化工,2004,24(8):19-22.LI X X,LIU Y X,WEI X H.Technology for carbonyl sulfide removal[J].Modern Chemical Industry,2004,24(8):19-22.
[6]王芳芳,伍星亮,赵海,等.干法脱除煤气中有机硫的研究现状与进展[J].煤化工,2007,35(3):28-32.WANG F F,WU X L,ZHAO H,et al.Research status and progress of dry removal of organic sulfur in coal gas[J].Coal Chemical Industry,2007,35(3):28-32.
[7]徐明铭.空气湿度对直流电晕放电影响的研究[D].济南:山东大学,2014.XU M M.Study on influences of air humidity on direct current corona discharge[D].Jinan:Shandong University,2014.
[8]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.CAO W,LUO Z Y,XU F,et al.Simultaneous removal of NO and SO2 from flue gas by pulsed corona discharge[J].ACTA Scientiae Circumstantiae,2008,28(12):2487-2492.
[9]WANG M,ZHU T,LUO H,et al.Oxidation of gaseous elemental mercury in a high voltage discharge reactor[J].Journal of Environmental Sciences,2009,21(12):1652-1657.
[10]BAI M D,BAI X Y,TANG H,et al.Removal of SO2 in simulated flue gas via strong ionization discharge[J].Chinese Journal of Applied Chemistry,2005,22(2):128-131.
[11]李慧青,邹吉军,张月萍,等.电晕放电等离子体甲醇分解制氢[J].化工学报,2004,55(12):1989-1993.LI H Q,ZOU J J,ZHANG Y P,et al.Plasma methanol decomposition using corona discharges[J].Journal of Chemical Industry and Engineering,2004,55(12):1989-1993.
[12]ZHANG X,FENG W,YU Z,et al.Comparison of styrene removal in air by positive and negative DC corona discharges[J].International Journal of Environmental Science&Technology,2013,10(6):1377-1382.
[13]NAIDOO J,GOUMRI A,MARSHALL P.A kinetic study of the reaction of atomic oxygen with SO2[J].Proceedings of the Combustion Institute,2005,30(1):1219-1225.
[14]YAN K,HUI H,CUI M,et al.Corona induced non-thermal plasmas:fundamental study and industrial applications[J].Journal of Electrostatics,1998,44(1):17-39.
[15]DAGAONKAR M V,BEENACKERS A A C M,PANGARKAR V G.Absorption of sulfur dioxide into aqueous reactive slurries of calcium and magnesium hydroxide in a stirred cell[J].Chemical Engineering Science,2001,56(3):1095-1101.
[16]MA Y,WANG X,NING P,et al.Conversion of COS by corona plasma and the effect of simultaneous removal of COS and dust[J].Chemical Engineering Journal,2016,290(3):328-334.
[17]王学谦,程晨,马懿星,等.直流电晕放电净化羰基硫以及其产物分析[J].材料导报,2017,31(1):149-154.WANG X Q,CHENG C,MA Y X,et al.Removal of carbonyl sulfide by DC corona discharge and analysis of the product[J].Materials Review,2017,31(1):149-154.
[18]董淑玲,钟秦.反应器参数对低温等离子体脱除NO的影响研究[J].苏州科技学院学报(自然科学版).2010,27(1):36-40.DONG S L,ZHONG Q.Effect of reactor parameters on NO removal by low temperature plasma[J].Journal of Suzhou University of Science and Technology(Natural Science),2010,27(1):36-40.
[19]黄立维,陈金媛,松田仁树.线-筒式脉冲电晕反应器降解三氯乙烯废气研究[J].高校化学工程学报,2007,21(4):689-694.HUANG L W,CHEN J Y,MATSUDA H.Decomposition of trichloroethylene by using a wire-in-tube pulsed corona reactor[J].Journal of Chemical Engineering of Chinese Universities,2007,21(4):689-694.
[20]李济吾,唐志鹏.电晕放电与络合催化联合同时去除烟气中SO2、NO实验研究[J].环境科学学报,2015,35(1):95-100.LI J W,TANG Z P.Simultaneous removal of SO2 and NO by corona discharge combined with liquid phase catalytic[J].ACTAScientiae Circumstantiae,2015,35(1):95-100.
[21]YAN X,SUN Y F,ZHU T L,et al.Conversion of carbon disulfide in air by non-thermal plasma[J].Journal of Hazardous Materials,2013,261:669-674.
[22]马懿星.电晕放电协同分离转化黄磷炉气中粉尘和磷硫杂质[D].昆明:昆明理工大学,2016.MA Y X.Cooperation separation and conversion of dust and sulfurous phosphorus impurities from yellow phosphorus g as by corona discharge[D].Kunming:Kunming University of Science and Technology,2016.
[23]彭增伟.高压静电除尘器电晕放电特性研究[D].保定:河北大学,2005.PENG Z W.Study on corona discharge characteristics of high voltage electrostatic precipitator[D].Baoding:Hebei University,2005.
[24]张春阳.筒式电晕放电反应器结构优化及供电方式研究[D].大连:大连理工大学,2013.ZHANG C Y.Optimization of cylinder corona discharge reactor’s structure and power supply types[D].Dalian:Dalian University of Technology,2013.
[25]孙万启,宋华,韩素玲,等.废气治理低温等离子体反应器的研究进展[J].化工进展,2011,30(5):930-935.SUN W Q,SONG H,HAN S L,et al.Advances in research on non-thermal plasma reactors of waste gas treatment[J].Chemical Industry and Engineering Progress,2011,30(5):930-935.
[26]宁平,徐可,王学谦,等.低温等离子体技术处理含硫恶臭气体的研究进展[J].材料导报,2015,29(21):62-67.NING P,XU K,WANG X Q,et al.Research progress of removal sulfide odors by the non-thermal plasma[J].Materials Review,2015,29(21):62-67.
[27]郑维.直流电晕放电OH自由基发射光谱研究[D].大连:大连理工大学,2007.ZGENG W.Optical study of OH radicals produced by DC corona discharge plasma[D].Dalian:Dalian University of Technology,2007.
[28]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.
[29]WANG M,ZHU T,LUO H,et al.Effects of reaction conditions on elemental mercury oxidation in simulated flue gas by DCnonthermal plasma[J].Industrial&Engineering Chemistry Research,2011,50(10):5914-5919.
[30]GE H,HU D,LI X,et al.Removal of low-concentration benzene in indoor air with plasma-MnO2,catalysis system[J].Journal of Electrostatics,2015,76:216-221.
[31]徐可.直流电晕放电分离转化含尘气体中的H2S[D].昆明:昆明理工大学,2016.XU K.Separation and transformation of H2S in the tail gas with dust DC corona discharge[D].Kunmig:Kunming University of Science and Technology,2016.
[32]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研究[J].高校化学工程学报,2008,22(2):325-331.WU Z L,GAO X,LI J W,et al.Reactive characteristics and mechanism of the SO2 and NOx simultaneous removal process using a radical shower electro-catalytic oxidation system[J].Journal of Chemical Engineering of Chinese Universities,2008,22(2):325-331.
[33]LIANG P,JIANG W,ZHANG L,et al.Experimental studies of removing typical VOCs by dielectric barrier discharge reactor of different sizes[J].Process Safety&Environmental Protection,2014,94:380-384.
[34]吕俊翔,刘军恒,孙平,等.荷电反应器状态对柴油机颗粒荷质比的影响[J].浙江大学学报(工学版),2017,51(12):2414-2419.LV J X,LIU J H,SUN P,et al.Effects of discharge reactor condition on charge-mass ratio of diesel articles[J].Journal of Zhejiang University(Engineering Science),2017,51(12):2414-2419.
[35]梁平.低臭氧负离子发生器优化实验研究及其电源的设计[D].大连:大连理工大学,2005.LIANG P.Study on optimum of low-ozone negative ion generator&its power supply design[D].Dalian:Dalian University of Technology,2005.
[36]晏乃强,吴祖成.脉冲电晕放电治疗有机废气的研究-放电反应器结构[J].上海环境科学,2000(6):278-281.YAN N Q,WU Z C.Study on removal of VOCs by pulse corona discharge-structure of discharge reactor[J].Shanghai Environmental Sciences,2000(6):278-281.
[37]张佳鹏,肖刚,王锡辉,等.高温环境下线管式电极结构直流放电特性实验研究[J].高电压技术,2014,40(1):242-249.ZHANG J P,XIAO G,WANG X H,et al.Experimental study on the DC discharge characteristics of wire-to-cylinder electrode configuration at high temperature[J].High Voltage Engineering,2014,40(1):242-249.
[38]XIAO G,WANG X,ZHANG J,et al.Characteristics of DC discharge in a wire-cylinder configuration at high ambient temperatures[J].Journal of Electrostatics,2014,72(1):13-21.
[39]陈波.大气压脉冲介质阻挡放电特性及放电参数效应研究[D].济南:山东大学,2013.CHEN B.Study oil characteristics of atmospheric-pressure pulsed dielectric barrier discharge and parameter effects of discharge[D].Jinan:Shandong University,2013.
[40]徐跃,邓小军.不同频率和温度的电晕放电对聚酰亚胺薄膜的损伤特性研究[J].绝缘材料,2014(1):85-88.XU Y,DENG X J.Study on the effect of corona discharge on the damage mechanism of polyimide film under different frequency and temperature[J].Insulating Materials,2014(1):85-88.