介质阻挡放电常压降解哈隆的研究

STUDY ON THE ATMOSPHERIC DEGRADATION OF HALON-1211 BY DIELECTRIC BARRIER DISCHARGE

本文以介质阻挡放电的方式产生低温等离子体，利用低温等离子体技术成功地降解了常压状况下的气态ＣＦ２ＣｌＢｒ，ＣＦ２ＣｌＢｒ含量为０．６％的空气在放电１０ｓ的条件下，可使ＣＦ２ＣｌＢｒ达到９５％的降解率。本文研究了常压状况下的ＣＦ２ＣｌＢｒ低温等离子体空间反应机理，以及ＣＦ２ＣｌＢｒ初妈压力，电场强度和外加气体分别对低温等离子体降解ＣＦ２ＣｌＢｒ的影响。

In this paper,the CF2ClBr (Halon 1211)vapor was atmospherically degraded by cold plasma engendered by dielectric barrier discharge. The pressure of CF2ClBr 6. 67× 102Pa, added air to 1. 013×105Pa after discharge for 10s, 95% of CF2ClBr was decomposed. The paper also studied the cold plasma gas phase chemical reaction mechanism of CF2ClBr at atmospheric pressure, and studied the influences of initial pressure of CF2ClBr, strength of electric field and alien gases (He, N2 and air)on the CF2ClBr degradation respectively by cold plasma method.