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中文摘要：
利用同步辐射单光子电离和分子束取样技术并结合飞行时间质谱仪,在低压、预混、燃油当量比为1.0情况下研究正庚烷层流火焰的燃烧特性。共检测出24种中间产物,并计算出其摩尔分数。在燃烧反应前期,主要中间产物是酮、醚类物质。在燃烧反应后期,主要中间产物是碳氢化合物,燃烧反应前期的中间产物在燃烧反应后期继续氧化。乙烯在所有中间产物中摩尔分数最大的。另外,火焰中丙炔与苯有极大的相关性。
英文摘要：
A laminar premixed n-heptane/oxygen/argon flame at low pressure with an approximate fuel equivalence of 1.0 has been studied with tunable synchrotron vacuum ultraviolet(VUV)photoion- ization and molecular-beam mass spectrometry.About 24 kinds of species produeted in the flame are indentified by means of the photoionization mass spectrum and photoionization efficiency spectra. In addition,mole fraction profiles of these species are derived at the selected photon engergies near ionization thresholds.The main ...
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