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...