| 臭氧氧化苯乙烯有机气体性能及机制 |
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| 引用本文： | 何觉聪,黄倩茹,叶杞宏,罗雨薇,魏在山.臭氧氧化苯乙烯有机气体性能及机制[J].环境工程学报,2013,7(12):4935-4939. |
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| 作者姓名： | 何觉聪 黄倩茹 叶杞宏 罗雨薇 魏在山 |
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| 作者单位： | 中山大学环境科学与工程学院, 广东省环境污染控制与修复技术重点实验室, 广州 510275;中山大学环境科学与工程学院, 广东省环境污染控制与修复技术重点实验室, 广州 510275;中山大学环境科学与工程学院, 广东省环境污染控制与修复技术重点实验室, 广州 510275;中山大学环境科学与工程学院, 广东省环境污染控制与修复技术重点实验室, 广州 510275;中山大学环境科学与工程学院, 广东省环境污染控制与修复技术重点实验室, 广州 510275 |
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| 基金项目： | 国家科技部科技型中小企业技术创新基金项目（11C2621441321）；广州市科技计划项目（2010Z2-C361）；海珠区科技计划项目（2011-C-22） |
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| 摘 要： | 采用臭氧高级氧化处理高浓度苯乙烯有机废气，研究了进气苯乙烯浓度、臭氧浓度、停留时间、O3/C8H8摩尔比对苯乙烯去除效率的影响。研究结果表明，臭氧氧化能有效净化苯乙烯有机废气，苯乙烯去除效率可达66.6%。适宜运行条件为：停留时间为3.6 s，O3/C8H8摩尔比为0.46。采用GC-MS分析臭氧氧化苯乙烯出口气样，研究结果表明，苯甲醛（C6H5CHO）和苯甲酸（C6H5COOH）为臭氧氧化苯乙烯的中间产物。臭氧高级氧化苯乙烯机制为苯乙烯气体被臭氧氧化为苯甲醛和苯甲酸，然后继续臭氧氧化为最终产物二氧化碳和水。
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| 关 键 词： | 挥发性有机物(VOCs) 臭氧高级氧化 苯乙烯 |
Mechanism and performance of ozone oxidation of styrene in high concentration |
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| He Juecong,Huang Qianru,Ye Qihong,Luo Yuwei and Wei Zaishan.Mechanism and performance of ozone oxidation of styrene in high concentration[J].Techniques and Equipment for Environmental Pollution Control,2013,7(12):4935-4939. |
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| Authors: | He Juecong Huang Qianru Ye Qihong Luo Yuwei and Wei Zaishan |
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| Institution: | Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China;Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China;Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China;Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China;Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China |
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| Abstract: | Ozone oxidation of high concentration styrene was investigated. Effects of inlet styrene concentration,ozone concentration,residence time and molar ratio of O3/C8H8 on styrene removal were evaluated. The experimental results showed that styrene removal efficiency reached 66.6%.The optimal residence time and molar ratio were 3.6 s and 0.46,respectively. The degradation intermediates were benzaldehyde(C6H5CHO)and benzoic acid(C6H5COOH),which were identified by means of gas chromatography-mass spectrometry(GC-MS). The degradation mechanism of styrene is that styrene is oxidized by ozone to benzaldehyde and benzoic acid,which are oxidized to carbon dioxide and water finally. |
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| Keywords: | volatile organic compounds (VOCs) ozone oxidation styrene |
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