用户名: 密码: 验证码:
脉冲电晕—吸收法治理有机废气实验研究
详细信息    本馆镜像全文|  推荐本文 |  |   获取CNKI官网全文
摘要
采用电晕放电等离子体与吸收法联用技术对甲苯、二氯甲烷、三氯乙烯的去除情况进行了研究。
     实验中,考察了峰值电压、脉冲频率、载气中氧气浓度、停留时间、入口有机物浓度等因素对去除率的影响,结果表明:峰值电压提高,有利于VOCs的去除。当峰值电压从15kV提高到25kV时,甲苯、二氯甲烷、三氯乙烯的去除率分别从28.62%,9.77%和32.67%提高到62.64%,24.37%和65.72%;VOCs去除率还随着脉冲频率、停留时间、氧气浓度的增加而提高;入口有机物浓度对VOCs的去除存在较大影响,入口浓度越高,绝对去除量越大,相对去除率越低;在相同反应条件下,三种物质的去除率由高到低依次为:三氯乙烯、甲苯、二氯甲烷。这与其自身稳定程度是一致的;甲苯处理后的最终产物为CO_2、CO和H_2O。二氯甲烷和三氯乙烯的最终分解产物为CO_2、CO、H_2O和HCl。
     通过实验还发现,电晕放电反应器与吸收装置联用,去除率有了一定程度的提高,并且不同的吸收液对去除率提高的程度也不同,采用10%NaOH作为吸收液效果好于以清水为吸收液。
     扩大实验中,将原有流程进行了改造,对大流量有机废气的净化效果进行了初步实验,取得了一些基础数据。
This paper investigated the removals of volatile organic compounds (VOCs) such as toluene, dichloromethane (DCE) and trichloroethylene (TCE) by pulsed corona combined with absorption.
    In the experiment, the influences of operation parameters like pulse voltage, pulse repetition rate, gas residence time, oxygen concentration and initial concentration of VOCs were investigated. Experimental result showed that the increase of pulse voltage is helpful to the removal of VOCs. When the pulse voltage was increased from 15 kV to 25 kV, the removals of toluene, DCE and TCE increased from28.62%, 9.77% and 32.67% to 62.64% 62.64% and to 65.72% respectively.
    With the increase of the gas residence time and oxygen in gas stream, the removals of these pollutants also increased. Among these three pollutants, TCE is much easier to decompose than toluene and DCE, which may be ascribed to their differences in chemical structures. The final products of the destructions were analyzed as CO, CO2 and H2O for toluene and CO, CO2 , H2O and HC1 for TCE and DCE.
    Aiming at improving the decomposition, a combination of pulsed corona reactor with downstream adsorption was devised. It was found that this kind of combination was helpful to the decomposition.
    Finally, an enlargement experiment was performed to evaluate the feasibility of this system to industrial application.
引文
[1] 张文俊,邓九兰,韩国君.低浓度、大风量有机废气治理技术发展和现状.安全,1998(6):7-10
    [2] 李明华.有机废气的污染、净化概况与分析.山西机械,1996,(1):18-20
    [3] 田森林,宁平.有机废气治理技术及其新进展.环境科学动态,2001(1):23-28
    [4] 袁贤鑫.净化含氮有机污染物的催化剂及工艺.环境科学,1992,13(1):58-62
    [5] 赵国良.有机蒸气在金属氧化物上的催化燃烧.大连理工大学学报,1982,21(4):111-115
    [6] 刘忠生,陈玉香,林大泉,李东旭,李花伊.催化燃烧处理有机废气及催化剂中毒的防止.化工环保,2000,20(3):27-30
    [7] Noel de Nevers, Air Pollution Control Engineering.McGraw-Hill,Inc, New York, 1995
    [8] 孙力,高瑛,刘春祥,高占先.对硝基氯苯废气治理研究.环境工程,2001,19(4):38-39
    [9] 胡书晖.涤纶调和漆生产中有机废气的治理.东北水利水电学院学报,2003(3):69-71
    [10] 郑连英.用气相色谱法选择从工业有机废气除去苯和甲苯的吸收剂.环境科学,1987,8(6):47-49
    [11] 姚恕.液体吸收法处理喷漆尾气的研究.环境污染与防止,1984,6(4):23-26
    [12] 苏建华.液体吸收~活性炭吸附净化苯乙烯废气.环境科学,1993,14(3):36-38
    [13] 孙玉梅,全燮,陈景文,杨凤林,薛大明,赵雅芝,罗伟峰.物过滤法去除废气中乙酸乙酯及填料性质研究.大连理工大学学报,2002,42(1):51-55
    [14] 刘强,马广大,贾立岩,黄云丽.生物滴滤床净化二甲苯废气的性能研究.环境科学研究,2002,15(6):35-38
    [15] 季学光,羌宁.生物滴滤器净化甲苯废气研究.上海环境科学,2000,19(8):369-372
    [16] 陈建孟,王家德,庄利,别继艳.生物滴滤池净化二氯甲烷废气的实验研究.环境科学,2002,23(4):8-12
    [17] 梁永坤,全燮,陈景文,陈硕,薛大明,赵雅芝.生物过滤法处理含氨废气研究.环境科学学报,2000,20(5):518-522
    [18] Yamashita H, Ichi Y, Zhang S C. Photocatalytic decomposition of NO at 275K on titanium oxide catalysts anchored within zeolite cavities and framework. Appl. Surf.Sei., 1997,121:305-310
    [19] Sauer M L, Ollis D F. Photocatalyzed oxidation of ethanol and acetaldehyde in humidified air. J. Catalysis, 1996,158:570-577
    [20] Sauer M L, Ollis D F. Acetone oxidation in a photocatalytic monolith reactor. J.Catalysis., 1994,149:81-88
    [21] Taked A N, Torimoto T.Effect of inert supports for titanium dioxide loading on enhancement of photodecomposition rate of gaseous propionaldehyde.J.Phys.Chem., 1995,99:986-989
    [22] Fu Xianzhi,Clark L A, Zeltner W A. Effects of reaction temperature and water vapor content on
    
    the heterogeneous photocatalytic oxidation of ethylene.J. Photpchem. Photobiol.A:Chem., 1996,97:181-189
    [23] Yamazaki N S, Cervera M S,Nagano K J. Experimental and theoretical study of the reaction mechanism of the photoassited calalytic degradation of trichloroethylene in the gas phase.J.Phys. Chem.,1995,99:15814-15891
    [24] Yamazaki N S, Fu X, Anderson M A. chlorinated by products from the photoassisted catalytic oxidation of trichloroethylene and terachloroethylene in the gas phase using porous TiO2 pellets.J. Photpchem. Photobiol.A:Chem.,1996,97:175-182
    [25] Ibusuki T, Takeuchi K. Removal of low concentration nitrogen oxides through photoassisted heterogeneous catalysis[J].J.Mol.Catatysis, 1994,88:93-99
    [26] Per A L.J,Ollis D F. Heterogeneous photocatalytic oxidation of gas-phase organics for air purification: acetone,I-butanol, butyraldehyde,formaldehyde,and m-xylene oxidation.J.Catalysis,1992,136:554-562
    [27] Sauer M. L,Hate M A, Kikkwwa H, Heterogeneous photocatalytic oxidation of dilute toluene-chlorocarbon mixtures in air.J.Photochem. Photobiol. A:Chem., 1995,88:169-177
    [28] Walker A, Formentim M, Meriaudeau P.Heterogeneous photocatalysis: photo-oxidation of methylbutanols.J. Catalysis., 1997,50:237-243
    [29] Vorontsov A.V, Savinov E N. Quantitative studies on the heterogeneous gas-phase photooxidation of CO and simple VOCs by air over TiO_2 J.Catalysis Today, 1997,39:20-26
    [30] Hennezel O,Pichat P, Ollis D. F.Benzene and toluene gas-phase photocatalytic degradation over H_2O and HCL pretreated TiO_2: by-products and mechanisms.J.Photoehem. Photobiol. A:Chem,1998,118:197-205
    [31] Dibble L.A,Raupp G B. Fluidized-bed photocatalytic oxidation of trichloroethylene in contaiminated air stream.Environ.Sci.Teehnol., 1992.26:492-495
    [32] 段晓东,孙德智,胡松涛,余政哲,齐虹,史鹏飞.光催化氧化法处理挥发性有机物研究进展.哈尔滨建筑大学学报,2002,35(5):55-59
    [33] 张仁熙,候健,候惠奇.等离子体技术在环境保护中的应用(上).上海化工,2000,20:4-5
    [34] Masudas, et al. Pulse corona induced plasma chemical process:a horizon of new plasma chemical technologies Pure & Apple, Chem, 1988,60(5):727-730
    [35] 刘淑海.离子体烟气脱硫技术现状与关键问题讨论.环境科学,1996,17(2):86-89
    [36] 官为民,牛爱民,张报安.干法加氨脱除SO_2中的温度效应.环境科学学报,1996,16(1):90-93
    [37] 刘书海,吴彦,王宁会.电晕等离子体活化法脱硫脱硝的研究进展.环境科学进展,1994,2(5):75-78
    [38] 依成武,刘恒权,白希尧.等离子体分解SO_2实验.环境科学,1994,15(3),68-70
    [39] 朱联锡,卢红,蒋文举.脉冲等离子法烟气脱硫.中国环境科学,14(4):134-136
    [40] 赵志斌,王宁会,王容毅.含灰含水烟气的脉冲放电脱除NO和NO_x的研究.环境科学.1996,17(3):26-30
    
    
    [41] 李谦,宁成,李胜利.脉冲电晕非平衡等离子体对烟气SO_2、NO的氧化脱除.环境污染与防治,1994,16(5):1-3
    [42] 王宁会,越志斌,崔岳峰.脉冲放电烟气脱除尘与除NO_2和NO_x的研究.中国环境科学,1997,17(3):212-215
    [43] 姜雨泽,吴彦,李柏年.飞灰和水在脉冲放电脱硫中作用的研究.环境工程,2000,18(3):27-29
    [44] Li Jing et al. IEEE Trans. Plasma Sci,1995,23 (4):672-677
    [45] Sun Wanming et al. J Appl Phys,1996,,79 (7):3438-3441
    [46] 周黎明,马虹斌.非平衡放电等离子体治理有害气体.环境污染与防治,1996,18(6):18-21
    [47] 黄立维,谭天恩.脉冲电晕法治理甲苯废气实验研究.中国环境科学,1997,17(5):449-453
    [48] 黄立维,谭天恩,施耀.高压脉冲电晕法治理有机废气实验研究.环境污染与防治,1998,20(1):4-7
    [49] 郑雷,姜玄珍.脉冲电晕放电降解CH_2Cl_2的初步研究.环境科学,1997,18(5):62-64
    [50] 晏乃强,杨虹,吴祖成,谭天恩,李道棠.放电等离子体降解三氯乙烯.环境科学,2001,22(3):11-14
    [51] 晏乃强,吴祖成,施耀,谭天恩.催化剂强化脉冲放电治理有机废气.中国环境科学,2000,20(2):136-140
    [52] 侯健,潘循皙,赵太杰,侯惠奇.常压非平衡态等离子体降解挥发性烃类污染物.中国环境科学,1999,19(3):277-280
    [53] 季金美,M.ArifMalik,姜玄珍.脉冲电晕放电降解CFC-113和CCl_4.环境科学,1999,20(5):52-54
    [54] 于勇,李晖,张振满,董文博,卞麦英,侯惠奇.用低温等离子体技术降解三氟溴甲烷(哈隆1301).复旦学报,1997,36(1):84-90
    [55] 李坚,马广大.电晕法处理易挥发性有机物(VOC_S)的实验研究.环境工程,1999,17(3):30-33
    [56] 金心宇,张昱,姜玄珍.电极材料对脉冲等离子体降解有机废气的影响分析.中国环境科学,1998,18(3):213-217
    [57] 晏乃强,吴祖成,施耀.电晕-催化技术治理甲苯废气的实验研究.环境科学,1999,20(1):11-14
    [58] 侯健,郑光云,蒋洁敏,侯惠奇.低温等离子体处理工业废气中的硫化氢和二硫化碳.化学世界,2000(增刊):70-71
    [59] 李秀金.非热强介质等离子体反应器用于臭味气体的分解.化工环保,2002,22(3):125-129
    [60] 白冬敏,白希尧,储金字.臭氧的发生及臭氧法处理印染废水.中国环境科学,1992,12(6):466-468
    [61] 孙亚兵,任兆杏.非平衡态等离子体技术在环境保护领域中的应用.环境科学研究,1998,11(4):24-26
    [62] 孙亚兵.低温等离子体技术在三废处理中的应用与研究.环境保护科学,1997,23(5):45-48
    
    
    [63] 李胜利,李劲.用高压脉冲放电等离子体处理印染废水的研究.中国环境科学,1996,16(1):73-76
    [64] 李胜利,李劲,王泽文.脉冲电晕放电对印染废水脱色效果的研究.环境科学,1996,17(1):13-15
    [65] GaoJin-zhang,HuZhong-ai,WangXiao-yan,etal.Degradationofα-naphtholbyplasmainaqueoussolu tion.PlasmaScience&Technology.2001,3(1):641-645
    [66] GaoJin-zhang,HuZhong-ai,WangXiao-yan.Oxid-ativede gradationofacrldlneinduced by plasma with contact glow discharge electrolysis.ThinSolidFilms.2001,90(3):154-158
    [67] GaoJin-zhang,WangXiao-yan,HuZhong-ai.ARe-viewonchemicaleffectsinaqueoussolutioninduce dbyplasmawithglowdischarge.PlasmaSclence&Technology.2001,3(3):765-774
    [68] 李劲,脉冲放电等离子体水处理方法及装置.中国,专利号CN1104609A,1996-07-05
    [69] 李劲,王泽文,高秋华.放电等离子体水处理技术中的放电问题.高电压技术,1997,23(2):7-8
    [70] 刘爱如.低温等离子体技术在三硝基甲苯(TNT)废水处理上应用研究.北京理工大学硕士学位论文,1997
    [71] Van Veldhuizen E M. Pulsed Positive Corona in Water.12th International Symposium on Plasma, 1999
    [72] 沈淳用.使用等离子体反应器的处理设备及其方法.中国,专利号CN1207368A,1999-02-10
    [73] 周远翔,程子霞,严萍,梁曦东,关志成.低温等离子体处理粉尘中二恶英的初步研究.高电压技术,2002,28(120):49-51
    [74] L. Huang, T. Hari, K. Nakajyo, S. Ozawa, and H. Matsuda; Reduction of NO by CO in a Pulsed Corona Reactor Incorporated with CuO Catalyst, J. Chem. Eng. Jpn., 2001, 35(6):1012-1016
    [75] 黄立维.一种从气流中去除含氟、氯、硫或氮的有害气体的方法.中国,专利号01121334.5,2001-05-30
    [76] L. Huang, K.Nakajo, T. Hari, S.Ozawa, and H. Matsuda; Decomposition of Carbon Tetrachloride by a Pulsed Corona Reactor Incorporated with In Situ Absorption, Ind. Eng. Chem.Res., 2001, 40(23): 5481-5486
    [77] T. Hari,K. Nakajyo,L. Huang, S. Ozawa, and H. Matsuda; Influence of the Coexistence Gas and lnositu Absorbent on the Decomposition of Covalent Chlorides and Fluorides by Non-thermal Plasma, J. Chem. Eng. Jpn, 2002,28 (5):522-527
    [78] 张芝涛,韩慧等.强电离放电产生臭氧气体的方法.环境科学,2001,22(2):126-129
    [79] 岳朝松,陈万金,储金宇.电晕放电法臭氧发生器电极的研究.高电压技术,2002,28(6):42-45
    [80] 晏乃强,吴祖成,谭天恩.电晕放电治理有机废气的研究—放电反应器的结构.上海环境科学,2000,19(6):278-281
    [81] 蒋洁敏,侯健,郑光云,侯惠奇.介质阻挡放电常压分解苯二甲苯.中国环境科学,2001,21(6):531-534
    [82] 李坚,电晕法处理挥发性有机物(VOCs)的实验研究.西安建筑科技大学博士学位论文,1999,6
    
    
    [83] 侯健,潘循皙,李朝敏,侯惠奇.利用非平衡态等离子体降解甲苯研究.环境科学学报,1999,19(3):273-276
    [84] L. Huang, K.Nakajo, S.Ozawa, and H. Matsuda. Decomposition of Dichloromethane in a Wire-in-Tube Pulsed Corona Reactor, Environ. Sci. Technol., 2001, 35(6): 1276-1281
    [85] B.M.Penetrante,M.C.Hsiao, J.N.Bardsley, et al.Decomposition of Methylene Chloride by Electron Beam and Pulsed Corona Processing ,Phys.Lett.A 1997,235(1) :76-82.
    [86] Fitzsimmons C., Ismail F. ,Whitehead J. C. et al.The Chemistry Dichloromethane Destruction in Atmospheric-pressure Gas Streams by a Dielectric Packed-bed Plasma Reactor. J.Phys.Chem.A 2000,104: 6032-6035.
    [87] OdaT, TakahashiT, Tada K.Decomposition of Trichloroethylene by non-plasma.IEEE IAS Annual Meeting, 1997:2019-2026.
    [88] Clothiaux.E.J.,Koropchak.J.A.,Moore.R.R. Decomposition of an organophosphorus material in a silent electrical discharge. Plasma Chemistry and Plasma Processing, 1984,4(1): 15-20
    [89] Fraser.M.E.,Sheinson,R.S. Electric discharge induced oxidation of hydrogen cyanide,Plasma Chemistry and Plasma Processing, 1986,6(1):27-38
    [90] Fraser.M.E. Simulant decomposition products and mechanis.Ad-al41080,1984
    [91] Koropchak.J.A.,et al.Bactreial spore deactivation by silent discharge plasma. Scientific Conference on Chemical Defence Research,CRDC, 1983,14-18
    [92] Health.W.O,Nonthermal plasma technology for organic destruction,DE95014188,1995
    [93] Tennant,R.A.,Wantuck.P.J.Packed bed reactor treatment of liquid hazardous and mixed wastes.Nuclear and Harzardous Waste Management International Topical Meeting.1992:875-879
    [94] 何鹰,程代云,史喜成.非平衡等离子体技术对有害气体污染物的降解研究进展.环境污染治理技术与设备,2002,3(4):12-17
    [95] Shunsuke Hosokawa,"Application of PPCP for reduction of gaseous pollutants exhausted from encineration plant", Proc. of NEDO Symp. on Non2thermal Discharge Plasma Technology for Air Pollution Control, 1997,109-114
    [96] T. Yamamoto , C. L., Yang , "Plasma2assited chemical reactor for NOx decomposition", IEEEPIAS 32th Annu. Meeting, 1997,1956-1960
    [97] A. Mizuno, H. H. kim, et al."Experiment approach to enhance efficiency of non2thermal plasma process in flue gas cleaning",Proc, of NEDO Symp. on Non2thermal Discharge Plasma Technology for Air Pollution Control, 1997:1-10
    [98] Zhu Yi-min, Wang Ning-hui,"Optimization off pulsed corona discharge for flue gas treatment",Proc. 7th Int. Conf. on Electrostatic Precipitation, 1998:207-211
    [99] Wu Yan, Zhu Yi-min, Wang Ning-hui ,"Investigation on SO_2 and NO_x removal fromflue gas by pulsed corona discharge", Proc.7th Int. Conf. on Electrostatic Precipitation, 1998:212-215
    [100] Wu yan, Wang Ning-hui,Zhu Yi-min, Zhang Yan-bin ,"SO_2 removal from industrial flue gases using pulsed corona discharge",Journal of Electrostatic, 1998,44 (5):11-16
    [101] 李国锋,吴彦.脉冲电晕等离子体化学(PPCP)处理有害气体反应器的研究进展.环境科
    
    学进展,1997,7(4):54-60
    [102] H.J.Hall,History of pulse energization in electrostatic precipitation,J.Electroststic 1990,25(5):1-12
    [103] 国家环保局编,北京,大气污染防止技术研究,科学出版社,1992

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700