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现代化工  2017, Vol. 37 Issue (10): 152-155,157    DOI: 10.16606/j.cnki.issn0253-4320.2017.10.036
  工艺与设备 本期目录 | 过刊浏览 | 高级检索 |
介质阻挡放电等离子体脱除硫化氢的能效优化研究
赵冲, 蔡宇翔, 杨洋, 竺新波, 郑成航, 高翔
浙江大学能源清洁利用国家重点实验室, 热能工程研究所, 浙江 杭州 310027
Energy efficiency optimization for H2S removal by dielectric barrier discharge plasma
ZHAO Chong, CAI Yu-xiang, YANG Yang, ZHU Xin-bo, ZHENG Cheng-hang, GAO Xiang
State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
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摘要 为提高介质阻挡放电(DBD)系统降解H2S的能量利用效率,以同轴DBD反应系统为对象,从谐振特性和功率特性两方面研究了DBD放电系统的电气参数和反应器几何参数对反应器能量输入和H2S脱除效果的影响。研究发现,放电频率与负载电压之间的谐振特性直接影响H2S脱除效率,在谐振频率点脱除效率最大。谐振频率的大小受负载电压和反应器几何参数的影响,其原因可以归结于介质层等效电容的变化。DBD放电有效功率与放电频率、负载电压和反应器几何参数间存在量化规律P=A·L·f·Vn,且在相同的负载电压下,谐振频率点的能量输入效率ηP最大。其他条件不变的情况下,放电区域长度越大,H2S脱除效率越高;放电气隙的大小存在最优值,本文中最优的放电气隙为5 mm。
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赵冲
蔡宇翔
杨洋
竺新波
郑成航
高翔
关键词:  介质阻挡放电  恶臭气体  谐振特性  脱除效率  能耗    
Abstract: To improve the energy utilization efficiency of H2S decomposition by dielectric barrier discharge (DBD),a series of experiments are performed.Taking coaxial DBD reactive system as object,the influences of DBD's electrical parameters and reactor geometrical parameters on the energy input and H2S removal efficiency are studied from aspects of resonance characteristics and power characteristics.The experimental results show that the resonance behavior between discharge frequency and loading voltage affects directly the H2S removal efficiency.The removal efficiency reaches its maximum value at resonance frequency point.The reason that the loading voltage and reactor geometrical parameters have an effect on the size of resonance frequency can be attributed to the changes of dielectric equivalent capacitance.Moreover,the effective discharge power of DBD has quantitative rule with discharge frequency,loading voltage and reactor's geometrical parameters,i.e.P=A·L·f·Vn.The energy input efficiency ηP is the largest at resonance frequency point when the loading voltage remains unchanged.If the other operating parameters remain unchanged,the longer the discharge area is,the higher the H2S removal efficiency is.The optimal discharge gap is 5 mm.
Key words:  dielectric barrier discharge    odor gas    resonance characteristics    removal efficiency    energy consumption
收稿日期:  2017-04-07      修回日期:  2017-08-07           出版日期:  2017-10-20
X512  
  O539  
基金资助: 国家重点研发计划项目课题(2016YFC0203701)
通讯作者:  高翔(1968-),男,教授,博士生导师,主要研究方向为大气污染物控制技术及其产业化,通讯联系人,0571-87951335,xgao1@zju.edu.cn。    E-mail:  xgao1@zju.edu.cn
作者简介:  赵冲(1993-),男,硕士生
引用本文:    
赵冲, 蔡宇翔, 杨洋, 竺新波, 郑成航, 高翔. 介质阻挡放电等离子体脱除硫化氢的能效优化研究[J]. 现代化工, 2017, 37(10): 152-155,157.
ZHAO Chong, CAI Yu-xiang, YANG Yang, ZHU Xin-bo, ZHENG Cheng-hang, GAO Xiang. Energy efficiency optimization for H2S removal by dielectric barrier discharge plasma. Modern Chemical Industry, 2017, 37(10): 152-155,157.
链接本文:  
http://www.xdhg.com.cn/CN/10.16606/j.cnki.issn0253-4320.2017.10.036  或          http://www.xdhg.com.cn/CN/Y2017/V37/I10/152
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