期刊
PROCEEDINGS OF THE COMBUSTION INSTITUTE
卷 32, 期 -, 页码 673-679出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.proci.2008.06.197
关键词
Particulates; Pyrolysis; Emissions
资金
- National Science Foundation [CTS-0121765]
We have measured sooting tendencies of 72 nonvolatile aromatic hydrocarbons, only five of which have been previously reported in the literature. The tested compounds include long-chain alkylbenzenes up to tridecylbenzene, methyl-substituted benzenes, naphthalenes, biaryls and polycyclic aromatic hydrocarbons (PAH) with up to four rings. Sooting tendency was defined as the-maximum soot concentration f(v,max) ill a methane/air coflow nonpremixed flame with 5-80 ppm of the aromatic added to the fuel. The f(v,max) were converted into Yield Sooting Indices (YSI's) by the equation YSI = C*f(v,max) + D, where C and D are constants chosen so that YSI-2-heptanone = 17 and YSI-phenanthrene = 19l. The aromatics were dissolved in 2-heptanone and added to the fuel mixture with a syringe pump. Soot concentrations were measured with laser-induced incandescence (LII). The burner and fuel lines were heated; time-resolved soot measurements verified that all of the test compounds were quantitatively transmitted to the flame without losses to the walls. The uncertainties in the results range from +/- 3 to +/- 10%. (c) 2009 The Combustion Institute. Published by Elsevier Inc. All rights reserved.
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