| 介质阻挡放电降解SF6的研究 |
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| 引用本文： | 沈燕,黄丽,张仁熙,侯惠奇.介质阻挡放电降解SF6的研究[J].环境化学,2007,26(3):275-279. |
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| 作者姓名： | 沈燕 黄丽 张仁熙 侯惠奇 |
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| 作者单位： | 复旦大学环境科学研究所,复旦大学温室气体研究中心,上海,200433 |
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| 摘 要： | 采用GC-TCD考察介质阻挡放电技术(DBD)处理SF6的效果,并采用红外吸收光谱进行产物分析.结果表明,电源电压的增加、放电时间的延长、气体介质分压的降低,以及少量其它气体(Ar,N2,O2,H2O,空气)的加入能够提高转化效果.另外,SF6的降解率随着空气湿度的增加而增加,28.2 kPa相对湿度为51%的空气与2.0 kPa SF6的混合气体放电后SF6降解率达92%.放电产物包括SiF4,SF4,SOF2,SOF4,SO2F2.
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| 关 键 词： | 六氟化硫 介质阻挡放电 降解 介质阻挡放电 放电降解 研究 DISCHARGE BARRIERS DIELECTRIC 气体放电 混合 相对湿度 空气湿度 降解率 转化效果 气体介质 延长 放电时间 电源电压 结果 产物分析 红外吸收光谱 处理 |
| 修稿时间： | 2006-09-16 |
DECOMPOSITION OF SF6 BY DIELECTRIC BARRIERS DISCHARGE |
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| SHEN Yan,HUANG Li,ZHANG Ren-xi,HOU Hui-qi.DECOMPOSITION OF SF6 BY DIELECTRIC BARRIERS DISCHARGE[J].Environmental Chemistry,2007,26(3):275-279. |
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| Authors: | SHEN Yan HUANG Li ZHANG Ren-xi HOU Hui-qi |
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| Institution: | Institute of Environmental Science, Greenhouse Gas Research Center, Fudan University, Shanghai, 200433, China |
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| Abstract: | The optimal parameters of the decomposition of SF6 were investigated by changing the reaction conditions of dielectric barriers discharge(DBD)such as the applied voltage,discharge time,initial pressure of SF6,and pressure of different additive gases(Ar,N2,O2,H2O,air).GC-TCD was used to quantitative determination of SF6.The results indicated that decomposition of SF6 can be improved by increasing applied voltage,prolonging discharge time,reducing the pressure of medium gas or mixing trifle amount of additive gases.Further study on discharging with air in different humidity demonstrated that the addition of 28.2 kPa air with a relative humidity of 51% can make the decomposition rate of 2.0 kPa SF6 up to 92%.SiF4,SF4,SOF2,SOF4,SO2F2 were detected by FT-IR as discharge by products. |
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| Keywords: | SF6 dielectric barriers discharge(DBD) decomposition |
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