基于TOF-MS技术对西埃斯热解燃烧过程中有害产物生成条件的研究  

Formation Conditions of Hazardous Products in the Pyrolysis and Combustion Progress of CS by TOF-MS

作　　者：黄超群[1] 史红星[1] 彭文联[1] 李金旭[2] 

机构地区：[1]防化研究院国民核生化灾害防护国家重点实验室,北京102205 [2]中国科学院大连化学物理研究所,辽宁大连116023

出　　处：《安全与环境工程》2017年第3期97-102,共6页Safety and Environmental Engineering

基　　金：国家重点研发计划项目(2016YFC0801500)

摘　　要：为减少特种危险化学品(特种危化品)焚烧销毁过程中有害物质的排放,利用飞行时间质谱(TOF-MS)在线检测技术研究了特种危化品西埃斯(CS)热解燃烧过程中有害产物的生成条件,即利用TOF-MS在线检测技术实时监测CS在不同条件下的热解产物,重点考察温度和氧气浓度两个主要影响因素对其生成有害产物苯和氯苯过程中的贡献。结果表明:温度对CS热解产物的种类和数量都有重要影响,CS热解燃烧过程中产生的有害物质氯苯和苯主要在550~750℃温度区间内生成;而氧气浓度对CS热解中氯苯和苯的生成也有一定的影响,其影响过程表现出先促进后抑制的特点,其中10%氧气浓度氛围条件下氯苯的生成量最高。In order to reduce the emission of the hazardous products into the atmospheric environment during the combustion process of CS,this paper researches the formation conditions of hazardous products during pyrolysis and combustion process of CS by using on-line detection technology of TOF-MS.The paper focuses on the contribution of temperature and oxygen concentration on the formation of benzene and chlorobenzene by real-time monitoring thermal decomposition product of CS with TOF-MS in different conditions.The results show that the temperature has important influence on the kinds and amount of combustion products of CS,and benzene and chlorobenzene are generated principally during 550~750℃;with the increase of oxygen concentration,the formation of benzene and chlorobenzene is first promoted and then repressed,of which the production of chlorobenzene would be the highest with the oxygen concentration of 10%.

关 键 词：西埃斯(CS) 飞行时间质谱(TOF-MS)技术 氯苯 热解燃烧 温度 氧气浓度 

分 类 号：X78[环境科学与工程—环境工程]