低温等离子体催化降解烟气中甲苯的研究

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摘要本研究开发了等离子体微放电填充床反应器和等离子体微放电填充床反应系统，采用多孔陶瓷作为填充床材料，用控制变量法探索了停留时间、放电电压、催化剂负载量、初始浓度、能量密度等因素对反应系统的甲苯去除能力的影响.结果发现，上述因素的最优组合参数为：1.1s、9.5kV、负载量为15%，物质的量比为0.25的Co/Mn催化剂、189.52mg/m³、6000J/L.同时，对多孔陶瓷填充床进行了SEM和XRD等表征研究，研究表明，Mn催化剂包括Mn₂O₃和Mn₃O₄晶体；Co/Mn催化剂包括CoMnO₃和MnO₂晶体；Fe/Mn催化剂包括FeMnO₃、Fe₂O₃和Mn₂O₃晶体，并且Mn催化剂比Co/Mn催化剂和Fe/Mn催化剂的晶体颗粒更加均匀.

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	尚超
	韦献革
	白敏冬
	杜长明

关键词 ：燃煤烟气, 有机污染物, 挥发性有机污染物, 等离子体催化

Abstract：A plasma micro discharge packed bed reactor and a plasma micro discharge packed bed reaction system were developed and porous ceramic was used as the packed bed material. The effects of residence time, catalyst loading, initial concentration, energy density and discharge voltage on the toluene removal ability of the reaction system were investigated by using the control variable method. The experimental results showed that the optimal parameter profile for above five factors was 1.1s, Co/Mn catalyst with catalyst loading of 15% and molar ratio of 0.25, 189.52mg/m³, 6000J/L and 9.5kV, respectively. Meanwhile, the characterization of the porous ceramic packed bed by SEM and XRD showed that Mn catalyst included Mn₂O₃ and Mn₃O₄ crystal, Co/Mn catalyst included CoMnO₃ and MnO₂ crystal, Fe/Mn catalyst included FeMnO₃, Fe₂O₃ and Mn₂O₃ crystal, and the crystal particle of Mn catalyst was more uniform than that of Co/Mn catalyst and Fe/Mn catalyst.

Key words： coal-fired flue gas organic pollutants volatile organic pollutants plasma catalysis

收稿日期: 2020-02-09

PACS:

X511

基金资助:国家重点研发计划（2018YFB0605200）；国家自然科学基金资助项目（61871409）

通讯作者: 杜长明,副教授,duchm@mail.sysu.edu.cn E-mail: duchm@mail.sysu.edu.cn

作者简介: 尚超(1994-),男,山西大同人,中山大学硕士研究生,主要研究方向为废气多相催化氧化处理技术.发表论文3篇.

引用本文:

尚超, 韦献革, 白敏冬, 杜长明. 低温等离子体催化降解烟气中甲苯的研究[J]. 中国环境科学, 2020, 40(9): 3714-3720. SHANG Chao, WEI Xian-Ge, BAI Min-Dong, DU Chang-Ming. Degradation of toluene in flue gas by low temperature plasma catalysis. CHINA ENVIRONMENTAL SCIENCECE, 2020, 40(9): 3714-3720.

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http://www.zghjkx.com.cn/CN/ 或 http://www.zghjkx.com.cn/CN/Y2020/V40/I9/3714

[1]	徐静颖,卓建坤,姚强.燃煤有机污染物生成排放特性与采样方法研究进展[J]. 化工学报, 2019,70(8):2823-2834. Xu J Y, Zhuo J K, Yao Q. Research progress on formation, emission characteristics and sampling methods of organic compounds from coal combustion[J]. Journal of Chemical Industry and Engineering (China), 2019,70(8):2823-2834.
[2]	范志威.煤燃烧过程中有机污染物的赋存及排放特性的研究[D]. 杭州:浙江大学, 2005. Fan Z W. Study on the occurrence and emission characteristics of organic pollutants in coal combustion[D]. Hangzhou:Zhejiang University, 2005.
[3]	Barabad M L M, Jung W, Versoza M E, et al. Emission characteristics of particulate matter, volatile organic compounds, and trace elements from the combustion of coals in mongolia[J]. International Journal of Environmental Research and Public Health, 2018,15(1706):1-11.
[4]	Fernández-Martı́nez G, López-Mahı́a P, Muniategui-Lorenzo S, et al. Distribution of volatile organic compounds during the combustion process in coal-fired power stations[J]. Atmospheric Environment, 2001,35(33):5823-5831.
[5]	Cheng J, Zhang Y, Wang T, et al. Emission of volatile organic compounds (VOCs) during coal combustion at different heating rates[J]. Fuel, 2018,225(2018):554-562.
[6]	Hsu W T, Liu M C, Hung P C, et al. PAH emissions from coal combustion and waste incineration[J]. Journal of Hazardous Materials, 2016,318(2016):32-40.
[7]	Cheng S Y, Wang G, Lang J L, et al. Characterization of volatile organic compounds from different cooking emissions[J]. Atmospheric Environment, 2016,145(2016):299-307.
[8]	Santos C Y M D, Débora D A A, Neto F R D A. Atmospheric distribution of organic compounds from urban areas near a coal-fired power station[J]. Atmospheric Environment, 2004,38(9):1247-1257.
[9]	Garcia J P, Beyne-Masclet S, Mouvier G, et al. Emissions of volatile organic compounds by coal-fired power stations[J]. Atmospheric Environment. Part A. General Topics, 1992,26(9):1589-1597.
[10]	杜长明,黄娅妮,巩向杰.等离子体净化苯系物[J]. 中国环境科学, 2018,38(3):871-892. Du C M, Huang Y N, Gong X J. Decomposition of benzene series by plasma technology[J]. China Environmental Science, 2018,38(3):871-892.
[11]	Heymes F, Manno-Demoustier P, Charbit F, et al. A new efficient absorption liquid to treat exhaust air loaded with toluene[J]. Chemical Engineering Journal, 2006,115(3):225-231.
[12]	闫柯乐,张红星,邹兵,等.含苯系物废气处理技术研究进展[J]. 合成材料老化与应用, 2016,45(01):103-107. Yan K L, Zhang H X, Zhou B, et al. Progress in treatment technology of waste gas containing BTEX[J]. Synthetic Materials Aging and Application, 2016,45(1):103-107.
[13]	Lillo-Ródenas M A, Cazorla-Amorós D, Linares-Solano A. Behaviour of activated carbons with different pore size distributions and surface oxygen groups for benzene and toluene adsorption at low concentrations[J]. Carbon, 2005,43(8):1758-1767.
[14]	段丰.试论挥发性有机废气治理中的光催化氧化法处理技术[J]. 中国资源综合利用, 2019,37(8):161-163. Duan F. Discussion on photocatalytic oxidation technology for volatile organic waste gas treatment[J]. China Resourcess Comprehensive Utilization, 2019,37(8):161-163.
[15]	蔡炳良.臭氧技术在有机废气治理中的应用[J]. 中国环保产业, 2017,(12):58-59. Cai B L. Application of ozone technology in treatment of organic waste gas[J]. China Environmental Protection Industry, 2017,(12):58-59.
[16]	梁文俊,孙慧频,朱玉雪,等.流向变换等离子体催化系统去除甲苯[J]. 中国环境科学, 2019,(12):4974-4981. Liang W J, Sun H P, Zhu Y X, et al. Removal of toluene with a reverse flow non-thermal plasma-catalytic reaction system[J]. China Environmental Science, 2019,(12):4974-4981.
[17]	Fan H Y, Shi C, Li X S, et al. High-efficiency plasma catalytic removal of dilute benzene from air[J]. Journal of Physics D-applied Physics, 2009,42(225105):1-5.
[18]	刘文正,赵帅,柴茂林.采用辉光放电等离子体的烟气处理技术研究[J]. 中国环境科学, 2017,(8):2905-2914. Liu W Z, Zhao S, Chai M L. Technology of flue gas treatment with glow discharge plasma[J]. China Environmental Science, 2017,(8):2905-2914.
[19]	刘竹涛,梁文俊,李坚,等.等离子体联合纳米技术降解甲苯废气的研究[J]. 中国环境科学, 2008,(8):29-33. Liu Z T, Liang W J, Li J, et al. Degradation of toluene in exhaust gas with plasma and nano-materials[J]. China Environmental Science, 2008,(8):29-33.
[20]	杜长明,低温等离子体净化有机废气技术[M]. 化学工业出版社, 2017. Du C M. Purification of organic waste gas by low temperature plasma[M]. Chemical Industry Press, 2017.
[21]	杨丽.不同位形介质阻挡放电中微放电通道研究[D]. 保定:河北大学, 2009. Yang L. Investigation of micro-discharge channel in dielectric barrier discharge with different configurantions[D]. Baoding:Hebei University, 2009.
[22]	欧阳吉庭,张宇,秦宇.微放电及其应用[J]. 高电压技术, 2016, 42(3):673-684. Ouyang J T, Zhang Y, Qin Y. Microdischarge and its application[J]. High Voltage Engineering, 2016,42(3):673-684.
[23]	李永辉.介质阻挡放电中微放电通道等离子体参量研究[D]. 保定:河北大学, 2007. Li Y H. Study on plasma parameters of micro discharge channel in dielectric barrier discharge[D]. Baoding:Hebei University, 2007.
[24]	Whitehead J C. Plasma-catalysis:the known knowns, the known unknowns and the unknown unknowns[J]. Journal of Physics D:Applied Physics, 2016,49(243001):1-24.
[25]	Kim H H, Ogata A, Futamura S. Oxygen partial pressure-dependent behavior of various catalysts for the total oxidation of VOCs using cycled system of adsorption and oxygen plasma[J]. Applied Catalysis B Environmental, 2008,79(4):356-367.
[26]	朱周彬.介质阻挡放电协同Mn催化剂降解二甲苯研究[D]. 杭州:浙江工商大学, 2018. Zhu W B. Study on the degeradation of xylene by dielectric barrier discharge assisted Mn catalyst[D]. Hangzhou:Zhejiang Gongshang University, 2018.
[27]	王光军.低温等离子体协同光催化处理二甲苯的实验研究[D]. 金华:浙江师范大学, 2018. Wang G J. The study on decomposition of xylene by nonthermal plasma with photocatalytic technique[D]. Jinghua:Zhejiang Normal University, 2018.
[28]	Kim H H, Ogata A, Futamura S. Oxygen partial pressure-dependent behavior of various catalysts for the total oxidation of VOCs using cycled system of adsorption and oxygen plasma[J]. Applied Catalysis B Environmental, 2008,79(4):356-367.
[29]	王婷.表面介质阻挡放电低温等离子体协同α-MnO2催化降解低浓度甲苯的研究[D]. 杭州:浙江大学, 2017. Wang T. Experimental study on surface dielectric barrier discharge non-thermal plasma combined with α-MnO2 for the degradation of low-concentration toluene[D]. Hangzhou:Zhejiang University, 2017.
[30]	回春雪.复合介质阻挡放电等离子体降解室内苯的研究[D]. 大连:大连理工大学, 2014. Hui C X. Study on degradation of indoor benzene by complex dielectric barrier discharge plasma[D]. Dalian:Dalian University of Technology, 2014.
[31]	高翔,吴祖良,李济吾,等.非热平衡等离子体过程萘的降解[J]. 中国环境科学, 2007,027(5):623-626. Gao X, Wu Z L, Li J W, et al. Naphthalene decomposition by non-thermal plasma process[J]. China Environmental Science, 2007, 027(5):623-626.
[32]	陆彬,季民,于欣,等.介质阻挡等离子体放电与催化联用技术分解苯[J]. 中国环境科学, 2006,26(6):703-707. Lu B, Ji M, Yu X, et al. Decomposition of benzene by dielectric barrier plasma discharge and catalysis[J]. China Environmental Science, 2006,26(6):703-707.
[33]	吴玉萍,赵之骏,张建良,等.介质阻挡放电降解苯乙烯的研究[J]. 中国环境科学, 2003,23(6):653-656. Wu Y P, Zhao Z J, Zhang J L, et al. Studies on the obstruction of styrene degradation by dielectric barrier discharge[J]. China Environmental Science, 2003,23(6):653-656.