PAH formation in one-dimensional premixed fuel-rich atmospheric pressure ethylbenzene and ethyl alcohol flames
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- 作者：Ali Ergut ; Silvia Granata ; Jude Jordan ; Joel Carlson ; Jack B. Howard ; Henning Richter and Yiannis A. Levendis
- 关键词：Ethylbenzene ; Ethyl alcohol ; Premixed flame ; PAH ; Soot ; Waste incineration ; Kinetic modeling
- 刊名：Combustion and Flame
- 出版年：2006
- 出版时间：March 2006
- 年：2006
- 卷：144
- 期：4
- 页码：757-772
- 全文大小：730 K
文摘
This study addresses health-hazardous emissions from combustion of aromatic and oxygenated components of engine fuel blends. An investigation was conducted on the evolution of polycyclic aromatic hydrocarbons (PAH) and other pollutants (soot, CO, unburned light hydrocarbons) emitted from one-dimensional ethylbenzene and ethyl alcohol flames. The study of ethylbenzene combustion is also pertinent to that of waste polystyrene, as past work has indicated that ethylbenzene may be a surrogate for initial products of polystyrene pyrolysis. Both liquid fuels were prevaporized in nitrogen, mixed with oxygen and additional nitrogen, and upon ignition, premixed flat flames were stabilized over a burner. Temperature measurements and product sampling were conducted at various heights above the burner. Results showed that ethyl alcohol combustion generated small yields of PAH, even under the adverse fuel-rich conditions of this study (md5=40751aea4dcb9df6e9f6aaab0b193e60"" title=""Click to view the MathML source"">