低温等离子体在舰船空气净化处理中的应用

摘要

采用低温等离子体直接处理和低温等离子体-吸附技术联合处理2种方式,分别开展对沙林模拟剂DMMP的降解试验.低温等离子体直接处理染毒空气实验中,分别考察脉冲电压、脉冲频率、初始浓度和放电时间等因素对DMMP降解率的影响,并对DMMP降解产物进行分析.结果表明,降解率随脉冲电压、脉冲频率、放电时间的增加而增加,随初始浓度的增加而降低.同时发现产物中含有CO2、H20、丙酸、甲基磷酸甲酯和磷酸等.低温等离子体-吸附技术联合净化处理染毒空气的研究结果表明,DMMP被强电离放电气体迅速降解,分解了污染物,实现吸附剂的再生.%Two treatment kinds of low temperature plasma directly and combined adsorption technology were used to study the degradation of DMMP.In the test of exposure air purification treatment by low temperature plasma directly,the effects of pulse voltage,pulse frequency,initial concentration and discharge time on the degradation rate of DMMP were investigated,and the degradation products were analyzed.The results show that the degradation rate of DMMP increases as the rising of pulse voltage,pulse frequency and discharge time,while decreasing with the rising of gas inlet concentration.CO2,H2 O,propionic,methylphosphonate and phosphoric acid are found in the outlet gas.In the test of exposure air purification treatment by low temperature plasma combined adsorption technology,it was shown that DMMP is rapidly degraded by strong ionization gas,pollutants are broken down.