同步辐射单光子电离技术研究乙醚富燃火焰  

AN EXPERIMENTAL STUDY OF FUEL-RICH DIETHYL ETHER FLAME WITH SYNCHROTRON SINGLE-PHOTON IONIZATION

作　　者：袁涛[1] 田振玉[1] 李玉阳[1] 王晶[1] 齐飞[1] 

机构地区：[1]中国科学技术大学国家同步辐射实验室,安徽合肥230029

出　　处：《工程热物理学报》2008年第9期1607-1611,共5页Journal of Engineering Thermophysics

基　　金：国家自然科学基金(No.20533040)

摘　　要：本文利用同步辐射单光子电离和分子束质谱技术研究了乙醚在富燃条件下的低压预混火焰。通过测量光电离质谱和扫描光电离效率谱,我们鉴别了该火焰中大部分的燃烧中间体及产物。此外,通过改变燃烧炉的位置测量光电离质谱,得到了各燃烧中间体及产物的摩尔分数曲线。实验结果为深入研究乙醚燃烧动力学并揭示含氧有机化合物在火焰中的反应机理提供了依据。A fuel-rich premixed diethyl ether flame has been investigated at low pressure(4×10~3 Pa) using synchrotron single-photon ionization and molecular-beam mass spectrometry techniques.Most combustion intermediates and products were identified by measurements of photoionization mass spec- trometry and photoionization efficiency spectra.Mole fraction profiles of intermediates and products were measured by scanning the burner position.The experimental results will be helpful to develop the kinetic model of diethy...

关 键 词：同步辐射 单光子电离 分子束质谱 低压预混火焰 乙醚 

分 类 号：O643.2[理学—物理化学]