天然气、液化石油气爆炸后气体产物成分对比  

Comparative study on the product composition of the natural gas and liquefied petroleum gas after the explosion

作　　者：冯莉莉[1] 宋文华[1] 范子琳[2] 鲁志宝[2] 

机构地区：[1]天津工业大学环境与化学工程学院,天津300387 [2]公安部天津消防研究所,天津300381

出　　处：《消防科学与技术》2013年第6期579-581,共3页Fire Science and Technology

基　　金：公安部应用创新计划项目(2009YYCXTJXF143)

摘　　要：采用气相色谱-质谱联用技术对天然气、液化石油气爆炸后空气中包含的产物成分进行了研究,并通过谱图分析对其特征组分和异同点进行了比较:两者都含有烷烃类、烯烃类物质以及特征离子为129m/z的苯基亚甲基醛类化合物。液化石油气爆炸后的生成产物还包括特征离子为228m/z和252m/z的多环芳烃类化合物。在火灾爆炸事故的原因调查中,该分析结果可以为相关燃气爆炸事故的原因认定提供一定的理论依据。This paper studied the product composition in the air after the explosion of natural gas and liquefied petroleum gas by gas chromatography-mass spectrometry and obtained their characteristic components as well as the similarities and differences through spectrum analysis.All the two samples contain alkanes,alkenes and phosphite benzene methyl aldehyde compounds whose feature ion is 129 m/z.In addition,the explosion product of LPG also contains polycyclic aromatic hydrocarbon compounds whose feature ions are 228 m/z and 252 m/z.In the case of fire and explosion investigation,the analysis results can provide some theoretical basis for the reason identification of some associated gas explosion accidents.

关 键 词：天然气 液化石油气 爆炸 气相色谱-质谱联用技术 

分 类 号：X928.7[环境科学与工程—安全科学] TE622.1[石油与天然气工程—油气加工工程]