Journal
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Volume 33, Issue -, Pages 209-216Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.proci.2010.05.013
Keywords
Aromatic; n-Butylbenzene; Jet-stirred reactor; Ignition; Kinetic modeling
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The oxidation of n-butylbenzene was studied in a jet-stirred reactor (JSR) at 10 atm in dilute conditions providing new experimental results over the low-and high-temperature range 550-1180 K, and variable equivalence ratio (0.25 <= phi <= 1.5). They consisted of concentration profiles of the reactants, stable intermediates and final products, measured as a function of temperature, at a constant residence time of 1 s, by sonic probe sampling followed by on-line GC-MS and off-line GC-TCD-FID and GC-MS analyses. The oxidation of n-butylbenzene in these conditions was modeled using a detailed chemical kinetic reaction mechanism (404 species and 2210 reactions, most of them reversible) deriving from a previous scheme proposed for the ignition, oxidation, and combustion of simple aromatics (benzene, toluene, styrene, n-propylbenzene). Sensitivity analyses and reaction path analyses, based on rates of reaction, were used to interpret the results. The proposed kinetic scheme could also be used to represent literature data (plug-flow reactor oxidation of n-butylbenzene, ignition delays in a rapid compression machine (RCM), a low-pressure methane-oxygen-argon flame doped with n-butylbenzene), to confirm its validity. (C) 2010 The Combustion Institute. Published by Elsevier Inc. All rights reserved.
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