线-板式介质阻挡放电反应器的优化
文献类型：期刊论文
| 作者 | 孙万启; 宋华; 白书培; 束继年; 孙春宝; 马挺军; 韩素玲 |
| 刊名 | 环境工程学报
 |
| 出版日期 | 2016 |
| 卷号 | 10期号:10页码:5827-5832 |
| 关键词 | 线-板式反应器 低温等离子体 介质阻挡放电 乙烯降解 |
| 其他题名 | Optimization for a wire-plate dielectric -barrier discharge reactor |
| 中文摘要 | 研制了一种新型线-板式介质阻挡放电反应器。通过分析V-Q Lissajous图,得出了反应器放电过程的特征,以乙烯的降解率为指标,优化了反应器的结构,并考察了工艺参数(相对湿度、乙烯初始浓度和停留时间)变化对反应器性能的影响。实验结果表明,反应器放电时,输入功率的增加不会使放电电压增大,增加的是放电电流;优化后的反应器以2.5 mm厚的陶瓷板做阻挡介质,以间距为0.5 mm的钼丝做电晕极,放电间距3 mm ;乙烯的降解效率受湿度的影响小于10%,随初始浓度的增加或停留时间的减小而降低;最佳的工艺参数为湿度24%(298 K)、初始浓度17 mg · m~(-3)、停留时间1 s。与传统的平行板式反应器相比,该反应器起晕电压较低、能量效率较高,适于降解低浓度的乙烯气体。 |
| 英文摘要 | A novel wire-plate dielectric -barrier discharge reactor (WP-DBD-R) was developed. First, the characteristics of the discharge process for the WP-DBD-R were analyzed from a voltage/charge (V/Q) Lissajous figure. Then, the ethylene degradation efficiency (EDE) was employed as an index to optimize the structure of the WP-DBD-R. Finally, the effects of varying the technological parameters (relative humidities, initial concentrations,and retention times) on the WP-DBD-R performance were evaluated. The experimental results revealed that while the discharge current increased with the input power, increasing during the operation of the WP-DBDR, the discharge voltage did not change. Based on the optimal results of the WP-DBD-R, 2.5 mm thick ceramic plates and molybdenum wires with a 0. 5 mm spacing were selected as the dielectric and corona electrode, respectively ;the width of the discharge gap was 3 mm. Relative humidities had a minor effect (< 10%) on the EDE, which decreased with increasing initial concentrations and lower retention times. When the relative humidity was 41%,a retention time of 1 s for 17 mg · m~(-3) of ethylene (initial concentration) resulted in the best performance of the WP-DBD-R. Compared to the traditional parallel-plate reactor, the WP-DBD-R has a lower ignition and higher energy efficiency. The WP-DBD-R is therefore fit for the degradation of low concentrations of ethylene. |
| 收录类别 | CSCD |
| CSCD记录号 | CSCD:5831652 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/36619]  |
| 专题 | 生态环境研究中心_大气环境科学实验室 |
| 推荐引用方式 GB/T 7714 | 孙万启,宋华,白书培,等. 线-板式介质阻挡放电反应器的优化[J]. 环境工程学报,2016,10(10):5827-5832. |
| APA | 孙万启.,宋华.,白书培.,束继年.,孙春宝.,...&韩素玲.(2016).线-板式介质阻挡放电反应器的优化.环境工程学报,10(10),5827-5832. |
| MLA | 孙万启,et al."线-板式介质阻挡放电反应器的优化".环境工程学报 10.10(2016):5827-5832. |
入库方式： OAI收割
来源：生态环境研究中心
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