CATEGORY: BUTENE
The Combustion Institute (2014)
Experimental
And Modeling Study Of The Oxidation Of Iso-Butene In A Jet-Stirred Reactor And
A Combustion Bomb
Y. Fenard(1), G. Dayma(1), (2), P. Dagaut(1)
1 C.N.R.S., Institut de Combustion Aérothermique Réactivité et Environnement
1 C avenue de la Recherche Scientifique - 45071 Orléans Cedex 2, France
2 Université d’Orléans, Château de la Source, Avenue du Parc Floral - 45067
Orléans Cedex 2, France
Introduction
Alkenes
are important intermediates formed by combustion of larger hydrocarbons, e.g.,
alkanes and alcohols. With 4 carbon atoms, butene is a good candidate for
upgrading detailed mechanisms of middle size species in combustion reaction
schemes. Butene is the shortest alkene with isomers: a branched isomer, 2-
methylpropene (iso-butene), and three linear isomers, i.e., 1-butene and the
cis/trans 2-butene. Iso-butene is also an important intermediate species in
pyrolysis and oxidation of iso-octane, MTBE and ETBE.
Conclusions
New experimental results were obtained for the oxidation of iso-butene in a JSR
and a combustion bomb. Oxidation of iso-butene in these conditions was modeled
using an extended detailed chemical kinetic mechanism with 201 species involved
in 1788 reactions, derived from previously proposed schemes for the oxidation
of large hydrocarbons. The proposed mechanism shows good agreement with the
present experimental data obtained in a JSR and a bomb. Moreover, it represents
well the structure of a low-pressure flat flame taken from literature. Ignition
delays obtained in shock tube are well predicted by our model, as well as the
decomposition products concentrations measured behind the reflected shock wave.
Free Full Text Source: http://homepages.vub.ac.be/~fcontino/jde2014/oral_presentations/fenard.pdf
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