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介质阻挡放电等离子体降解高浓度甲苯

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王保伟, 姚淑美, 彭叶平, 押玉荣, 王晓磊, 安少锋. 介质阻挡放电等离子体降解高浓度甲苯[J]. 环境工程学报, 2018, 12(7): 1977-1985. doi: 10.12030/j.cjee.201801156
引用本文: 王保伟, 姚淑美, 彭叶平, 押玉荣, 王晓磊, 安少锋. 介质阻挡放电等离子体降解高浓度甲苯[J]. 环境工程学报, 2018, 12(7): 1977-1985. doi: 10.12030/j.cjee.201801156
shu
WANG Baowei, YAO Shumei, PENG Yeping, YA Yurong, WANG Xiaolei, AN Shaofeng. Degradation of high concentration toluene with dielectric barrier discharge plasma[J]. Chinese Journal of Environmental Engineering, 2018, 12(7): 1977-1985. doi: 10.12030/j.cjee.201801156
Citation: WANG Baowei, YAO Shumei, PENG Yeping, YA Yurong, WANG Xiaolei, AN Shaofeng. Degradation of high concentration toluene with dielectric barrier discharge plasma[J]. Chinese Journal of Environmental Engineering, 2018, 12(7): 1977-1985. doi: 10.12030/j.cjee.201801156
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介质阻挡放电等离子体降解高浓度甲苯

  • 1.

    天津大学化工学院绿色合成与转化教育部重点实验室，天津 300072

  • 2.

    嘉诚环保工程有限公司，河北省污水治理与资源化工程技术研究中心，石家庄 050000

  • 基金项目:

    国家重点研发计划项目（2016YFB0600701）

    石家庄市重大科技专项（176240857A）

Degradation of high concentration toluene with dielectric barrier discharge plasma

  • 1.

    Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China

  • 2.

    Jiacheng Environmental Protection and Engineering Co.Ltd., Hebei Wastewater Treatment and Resource Engineering Technology Research Center, Shijiazhuang 050000, China

  • Fund Project:

  • 摘要: 为解决喷漆和涂装废气中VOCs的污染，采用同轴圆管式介质阻挡反应器进行低温等离子体降解高浓度甲苯探索，研究了反应器参数（放电间距、放电长度）、操作参数（初始甲苯浓度、气体流量、输入功率）等关键参数对甲苯转化率和产物CO2选择性的影响。结果表明：放电间距过大或者过小都不利于甲苯的降解，放电长度的增加对其影响相对较小；输入功率越大，甲苯的降解效果越好，并且反应产物中臭氧的浓度越低，但气体流量及初始甲苯浓度的增加不利于甲苯的降解。最后对产物进行GC-MS检测，分析了甲苯降解机理。
    Abstract: To solve the pollution of VOCs generated in the paint and coating processes, a highly efficient reactor system is crucial important for the removal of VOCs. In this study, a coaxial circular tube dielectric barrier reactor was used to conduct the discharge experiment, and the effects of the reactor parameters (discharge gap, discharge length) and operating parameters (the initial concentration of toluene, gas flow rate and input power)on toluene degradation were extensively studied. The experimental results showed that neither a too large nor a too small discharge gap benefited the degradation of toluene, while the increase of the discharge length had a relatively smaller effect on toluene degradation. Moreover, it was found that higher input power will improve the degradation of toluene and lower the ozone concentration in the exhaust gas. However, the increase of gas flow rate and initial toluene concentration were not conducive to toluene degradation. Finally, the mechanism of toluene degradation was discussed by analyzing the products distribution according to GC-MS results.
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  • 刊出日期:  2018-07-26

介质阻挡放电等离子体降解高浓度甲苯

  • 1. 天津大学化工学院绿色合成与转化教育部重点实验室，天津 300072
  • 2. 嘉诚环保工程有限公司，河北省污水治理与资源化工程技术研究中心，石家庄 050000
基金项目:

国家重点研发计划项目（2016YFB0600701）

石家庄市重大科技专项（176240857A）

摘要: 为解决喷漆和涂装废气中VOCs的污染，采用同轴圆管式介质阻挡反应器进行低温等离子体降解高浓度甲苯探索，研究了反应器参数（放电间距、放电长度）、操作参数（初始甲苯浓度、气体流量、输入功率）等关键参数对甲苯转化率和产物CO2选择性的影响。结果表明：放电间距过大或者过小都不利于甲苯的降解，放电长度的增加对其影响相对较小；输入功率越大，甲苯的降解效果越好，并且反应产物中臭氧的浓度越低，但气体流量及初始甲苯浓度的增加不利于甲苯的降解。最后对产物进行GC-MS检测，分析了甲苯降解机理。

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