微波催化燃烧气态甲苯特性及床层温度分布

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Abstract In this study, Cu-Mn-Ce/cordierite honeycomb catalyst was prepared by an impregnation method and applied to catalyze gaseous toluene degradation through a fixed bed reactor under microwave heating. Catalyst activity and stability, and bed temperature were investigated simultaneously. It showed that bed temperature of cross section was nearly uniform under microwave irradiation and the optimal reaction temperature for toluene oxidation was between 230℃ and 270℃. The removal efficiency of toluene was higher than 90% when reaction retention time was more than 9.7seconds and bed temperature was higher than 270℃ concurrently. Monometallic oxides of copper, manganese and cerium and their composite oxides had spinel structures and were main active components. Toluene was oxidized on the surface of the active components that followed by pseudo-first order reaction. Cu-Mn-Ce/cordierite honeycomb catalyst had both high catalytic activity and good stability after eight-time repetitive tests although high temperature had a negative effect on the structure. The research work provides a theoretical support for the pilot-scale test and further practical application of microwave catalytic combustion technology in treating VOCs exhaust.

Key words： microwave heating catalytic combustion toluene reaction kinetic characterization

Received: 24 January 2019

PACS:

X701

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	Articles by authors
	HE Li-na
	BO Long-li
	DU Lin
	NING Ke
	LIU Jia-dong

Cite this article:

HE Li-na,BO Long-li,DU Lin等. Microwave catalytic combustion of gaseous toluene and distribution of bed temperature[J]. CHINA ENVIRONMENTAL SCIENCECE, 2019, 39(8): 3242-3248.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2019/V39/I8/3242

[1]	Zhu X D, Liu Y. Characterization and risk assessment of exposure to volatile organic compounds in apartment buildings in harbin, China[J]. Bulletin of Environmental Contamination & Toxicology, 2014,92(1):96-102.
[2]	Ojala S, Pitkäaho S, Laitinen T, et al. Catalysis in VOC abatement[J]. Topics in Catalysis, 2011,54(16-18):1224.
[3]	李凤苏.苯及苯系物对作业人员健康状况的影响[J]. 职业与健康, 2008,(17):1760-1762. Li F S. Influence on health status of workers exposed to benzene[J]. Occupation and Health, 2008,(17):1760-1762.
[4]	刘含笑,徐贝佳,郦建国,等.挥发性有机物(VOCs)的测定方法[J]. 电力科技与环保, 2017,33(6):1-5. Liu H X, Xu B J, Li J G, et al. The test method of Volatile Organic Compounds (VOCs)[J]. Electricity Power Technology and Environmental Protection, 2017,33(6):1-5.
[5]	杨秀竹.对挥发性有机废气治理技术的研究[J]. 环境科学与管理, 2016,41(9):96-100. Yang X Z. Treatment technology for volatile organic waste gas[J]. Environmental Science and Management, 2016,41(9):96-100.
[6]	Jimenez J L, Canagaratna M R, Donahue N M, et al. Evolution of organic asrosols in the atmosphere[J]. Science, 2009,326(59):1525-1529.
[7]	Huang R J, Zhang Y, Bozzetti C, et al. High secondary aerosol contribution to particulate pollution during haze events in China[J]. Nature, 2014,514(7521):218.
[8]	Utembe S R, Watson L A, Shallcross D E, et al. A common representative intermediates (CRI) mechanism for VOC degradation. part 3:Development of a secondary organic aerosol module[J]. Atmospheric Environment, 2009,43(12):1982-1990.
[9]	张嘉妮,陈小方,梁小明,等."十三五"挥发性有机物总量控制情景分析[J]. 环境科学, 2018,39(8):3544-3551. Zhang J N, Chen X F, Liang X M, et al. Scenario analyses of the volatile organic compound emission allowance and allocation in the 13th Five-Year Period[J]. Environmental Science, 2018,39(8):3544-3551.
[10]	Zhang X, Gao B, Creamer A E, et al. Adsorption of VOCs onto engineered carbon materials:A review[J]. Journal of Hazardous Materials, 2017,338:102-123.
[11]	Qi M, Wu X, Zhang F, et al. Paraffin oil emulsions for the absorption of toluene gas[J]. Chemical Engineering & Technology, 2016,39(8):1438-1444.
[12]	Salar-García M J, Ortiz-Martínez V M, Hernández-Fernández F J, et al. Ionic liquid technology to recover volatile organic compounds (VOCs):A critical review[J]. Journal of Hazardous Materials, 2016,321:484-499.
[13]	马元想,陈年连.利用蓄热式燃烧炉处理焦油加工废气[J]. 燃料与化工, 2018,49(2):51-53+58. Ma Y X, Chen N L. Treatment of coal tar processing waste gas with regenerative combustion furnace[J]. Fuel & Chemical Processes, 2018, 49(2):51-53+58.
[14]	Kamal M S, Razzak S A, Hossain M M. Catalytic oxidation of volatile organic compounds (VOCs)-A review[J]. Atmospheric Environment, 2016,140:117-134.
[15]	张悦,刘志英,李溪,等.添加铈对Cu-Co-O催化剂催化燃烧VOCs性能影响[J]. 中国环境科学, 2017,37(6):2087-2091. Zhang Y, Liu Z Y, Li X, et al. Effect of Ce on the activity of Cu-Co-O catalyst in catalytic combustion of VOCs[J]. China Environmental Science, 2017,37(6):2087-2091.
[16]	Yi H H, Yang Z Y, Tang X L, et al. Promotion of low temperature oxidation of toluene vapor derived from the combination of microwave radiation and nano-size Co3O4[J]. Chemical Engineering Journal, 2018,333:554-563.
[17]	胡旭睿.微波催化燃烧VOCs催化剂制备及性能研究[D]. 石家庄:河北科技大学, 2016. Hu X R. Preparation and performance study of catalytic combustion catalyst to VOCs under for microwave irradiation[D]. Shijiazhuang:Hebei University of Science and Technology, 2016.
[18]	姚泽.微波加热α-MnO2催化去除甲苯和臭氧的研究[D]. 哈尔滨:哈尔滨工业大学, 2016. Yao Z. Study of catalytic removal of toluene and ozone by alpha-manganese dioxide microwave-heating mode[D]. Harbin:Harbin Institute of Technology, 2016.
[19]	吕丽,庞杰,宋华,等.微波协同霍加拉特剂催化氧化苯的影响因素[J]. 环境工程学报, 2014,8(6):2492-2496. Lv L, Pang J, Song H, et al. Influencing factors of benzene catalytic oxidation by hopcalite catalyst cooperated with microwave irradiation[J]. Journal Of Environmental Engineering Technology, 2014,8(6):2492-2496.
[20]	Bo L L, Sun S Y. Microwave-assisted catalytic oxidation of gaseous toluene with a Cu-Mn-Ce/cordierite honeycomb catalyst[J]. Frontiers of Chemical Science and Engineering, 2018.https://doi.org/10.1007/s11705-018-1738-3.
[21]	Dobosz J, Zawadzki M. Total oxidation of lean propane over α-Fe2O3 using microwaves as an energy source[J]. Reaction Kinetics Mechanisms & Catalysis, 2015,114(1):157-172.
[22]	卜龙利,刘海楠,王晓晖,等.不同加热方式下催化氧化甲苯的性能研究[J]. 环境化学, 2013,32(8):1524-1531. Bo L L, Liu H N, Wang X H, et al. Study on the catalytic oxidation of toluene under different heating modes[J]. Environmental Chemistry, 2013,32(8):1524-1531.
[23]	吴波.铜锰铈氧化物VOCs催化燃烧催化剂的制备与性能研究[D]. 成都:西南交通大学, 2017. Wu B. Based on catalytic combustion properties of catalyst copper manganese cerium oxide[D]. Chengdu:Southwest Jiaotong University, 2017.
[24]	张菊茹,李济吾.Cu-Mn-Zr复合催化剂制备及其催化氧化乙酸乙酯性能[J]. 中国环境科学, 2018,38(8):2927-2933. Zhang J R, Li J W. Preparation of Cu-Mn-Zr composite catalyst and performance for catalytic oxidation of ethyl acetate[J]. China Environmental Science, 2018,38(8):2927-2933.
[25]	张钰彩,卜龙利,王晓晖,等.微波加热下苯的催化氧化性能研究[J]. 环境科学, 2012,33(8):2759-2765. Zhang Y C, Bo L L, Wang X H, et al. Study on catalytic oxidation of benzene by microwave heating[J]. Environmental Science, 2012,33(8):2759-2765.
[26]	李海英,周勇,王学海,等.酸处理条件对蜂窝状堇青石性能的影响[J]. 材料导报, 2013,27(14):134-137. Li H Y, Zhou Y, Wang X H, et al. Influence of different acid pretreatment condition on the function of cordierite honeycomb[J]. Materials Review, 2013,27(14):134-137.
[27]	刘艳春,王兆春,曾令可,等.堇青石蜂窝陶瓷的表面改性[J]. 分析测试学报, 2014,33(9):1044-1049. Liu Y C, Wang Z C, Zeng L K, et al. Surface modification of cordierite honeycomb ceramics[J]. Journal of Instrumental Analysis, 2014,33(9):1044-1049.
[28]	王宽岭,王学海,刘忠生.Mn-Fe-Ce/Al2O3/堇青石催化剂低温NH3-SCR脱硝性能研究[J]. 当代化工, 2015,44(9):2057-2060. Wang K L, Wang X H, Liu Z S. Low-temperature NH3-SCR denitrification performance of Mn-Fe-Ce/Al2O3/Cordierite monolithic[J]. Contemporary Chemical Industry, 2015,44(9):2057-2060.
[29]	廖建波.挥发性有机物微波辅助催化氧化性能试验研究[D]. 西安:西安建筑科技大学, 2011. Liao J B. Study on performance microwave-assisted catalytic oxidation of volatile organic compound[D]. Xi'an:Xi'an University of Architecture and Technology, 2011.
[30]	卜龙利,杨力,孙剑宇,等.双组分VOCs的催化氧化及动力学分析[J]. 环境科学, 2014,35(9):3302-3308. Bo L L, Yang L, Sun J Y, et al. Catalytic oxidation of two-component VOCs and kinetic analysis[J]. Environmental Science, 2014,35(9):3302-3308.
[31]	He C, Yu Y K, Shi J W, et al. Mesostructured Cu-Mn-Ce-O composites with homogeneous bulk composition for chlorobenzene removal:catalytic performance and microactivation course[J]. Materials Chemistry and Physics, 2015,157:87-100.
[32]	李鹏.新型CuMn/TiO2苯类催化燃烧催化剂的研制及活性研究[D]. 湘潭:湘潭大学, 2007. Li P. Catalytic combustion of toluene over copper-manganese catalysts supported on titanium dioxide[D]. Xiangtan:Xiangtan University, 2007.
[33]	Abdullah A Z, Abu Bakar M Z, Bhatia S. A kinetic study of catalytic combustion of ethyl acetate and benzene in air stream over Cr-ZSM-5catalyst[J]. Industrial & Engineering Chemistry Research, 2003,42(42):6059-6067.