Correlations of the spectroscopic properties with the chemical composition of flame-formed aromatic mixtures

被引：35

作者：

Ciajolo, A ^{[1
]}

Apicella, B ^{[1
]}

Barbella, R ^{[1
]}

Tregrossi, A ^{[1
]}

机构：

[1] Univ Naples Federico II, Dipartimento Ingn Chim, Naples, Italy

来源：

COMBUSTION SCIENCE AND TECHNOLOGY | 2000年 / 153卷

关键词：

spectroscopy; soot; PAH;

D O I：

10.1080/00102200008947248

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The spectroscopic analysis of the high molecular weight species condensed (CS) and sampled in the soot formation zone of a rich premixed ethylene flame was carried out in the uv-visible and infrared wavelength region. The absorptivities of the aromatic and tar fractions of CS, expressed in terms of oscillator strength in the 215-400nm wavelength region, showed a maximum of the absorptivity in correspondence of soot inception. Aromatic and tar species showed both aliphatic and aromatic characteristics by means of FT-IR analysis in the 2700-3400 cm(-1) region where the aliphatic and aromatic C-H stretch is detected. A quantitative FT-IR method was developed allowing the determination of the relative contribution of the aliphatic and aromatic hydrogen to the total hydrogen of the condensed species.

引用

页码：19 / 32

页数：14