SF_6在闪电过程中离解的模拟研究  

Simulative Study on the Dissociation of SF_6 in the Lightning Process

作　　者：张建良[1] 张仁熙[1] 潘循皙[1] 黄丽[1] 侯惠奇[1] 

机构地区：[1]复旦大学环境科学研究所,上海200433

出　　处：《复旦学报（自然科学版）》2004年第4期640-645,共6页Journal of Fudan University：Natural Science

基　　金：国家自然科学基金资助项目(20177004).

摘　　要：采用火花放电的方法模拟研究了大气对流层中闪电过程消除SF6的可能性.以气相色谱、红外光谱为主要分析手段,研究了闪电过程中SF6的分解反应机理及对该反应的影响因素.结果表明,SF6在闪电过程中,被分解并生成多种含硫、氟、氧的化合物.大气压强、H2O等对SF6的放电反应有影响.基于实验结果,对SF6在闪电过程中的反应途径作了探讨,并估算了实际大气中由闪电所引起的SF6的分解量.The discharge reactions in SF_(6)-O_(2) system were studied for searching the dissociation of SF_(6) in the lighting. The main products of these reactions were determined by Gas Chromatography and FT-IR spectrum. The results showed that the system can dissociate SF_(6), but the pressure and H_(2)O will effect the reaction. Based on the results, the mechanism of the reaction in the system was discussed. The dissociation of SF_(6) in the lightning process under practical situation was estimated as well.

关 键 词：SF6 闪电过程 离解 火花放电 六氟化硫 温室气体 

分 类 号：X511[环境科学与工程—环境工程] P402[天文地球—大气物理学与大气环境]