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An experimental and kinetic modeling study on the oxidation of 1,3-dioxolane

Abstract : The modern catalytic or enzymatic advances allow the production of novel biofuel. Among them, 1,3dioxolane can be produced from formaldehyde and ethylene glycol, both can be obtained from biomass. In this study, the oxidation of 1,3-dioxolane is studied at stoichiometric conditions. The ignition delay times of 1,3-dioxolane/O 2 /inert mixtures were measured in a shock tube and in a rapid compression machine at pressures of 20 to 40 bar and temperatures ranging from 630 to 1300 K. The pressure profiles recorded in the rapid compression machine show a first stage of ignition enlightening the influence of the low temperature chemistry of combustion. Furthermore, mole fraction profiles of the stable intermediates produced during the oxidation of 1,3-dioxolane were measured in a jet-stirred reactor at 10 bar. Following these observations, a detailed kinetic model was developed with reaction rate coefficients and thermochemical data calculated by theoretical calculations or estimated by analogies to suitable molecules. In order to get an insight into the most important reaction pathways brute force sensitivity analysis and reaction pathway analysis were performed with the proposed model and discussed. It became clear that in the fuel-in-air case for the alkylhydroperoxide of 1,3-dioxolane the ring opening betascission pathway is favored against the further alkane-like second addition to molecular oxygen, what leads to a limited negative temperature coefficient.
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https://hal.archives-ouvertes.fr/hal-03216737
Contributor : Philippe Dagaut <>
Submitted on : Tuesday, May 4, 2021 - 12:16:22 PM
Last modification on : Wednesday, May 5, 2021 - 3:38:46 AM

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Alina Wildenberg, Yann Fenard, Maxime Carbonnier, Alan Kéromnès, Benoîte Lefort, et al.. An experimental and kinetic modeling study on the oxidation of 1,3-dioxolane. Proceedings of the Combustion Institute, Elsevier, 2021, 38 (1), pp.543-553. ⟨10.1016/j.proci.2020.06.362⟩. ⟨hal-03216737⟩

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