Average structural analysis of the extractable material of young soot gathered in an ethylene inverse diffusion flame

详细信息	查看全文 | 推荐本文 |

• 作者：Alex ; er Santamarí ; a ; Fanor Mondragó ; n ; Wiston Quiñ ; ó ; nez ; Eric G. Eddings ; Adel F. Sarofim
• 刊名：Fuel
• 出版年：2007
• 期刊代码：33_00162361
• 类别：ce
• 出版时间：August 2007
• 卷：86
• 期：12-13
• 页码：1908-1917
• 文件大小：443 K

摘要

Conventional analytical methods such as ¹H NMR, vapor pressure osmometry (VPO) and elemental analysis were used to characterize the soot precursor material represented by the chloroform extractable fractions of the young soot gathered at different heights of an ethylene inverse diffusion flame in terms of average structural parameters. The results indicate that the soot soluble fraction obtained at a 6 mm height has a relatively large molecular weight and has long aliphatic chains which later disappear with an increase in height above the burner base, especially in the region where the temperature is high (1200 K). This behavior is also accompanied by an increase in the aromaticity (f_a) of the samples.