Abstract
The oxidation of 0.1% vol indane has been studied in a jet-stirred reactor at high temperature (950−1350 K), a fixed residence time τ of 70 ms, and variable equivalence ratio (0.5 ≤ φ ≤ 1). Indane−dimethoxymethane (0.095%−0.005% vol) mixtures were also oxidized in stoichiometric conditions. Molecular species concentration profiles of reactants, stable intermediates, and final products were obtained by probe sampling followed by on-line and off-line GC analyses. Dimethoxymethane (DMM) appears to accelerate the oxidation of the aromatic fuel, shifting the reactivity of indane by 40 K. This work provided some kinetic insights into the processes involved in indane oxidation and reactivity enhancement by DMM. A reaction sequence based on the experimental results obtained for oxidation of indane and reactivity enhancement by DMM is proposed to rationalize the present results. The present experiments showed that DMM addition tends to reduce the maximum mole fraction of higher PAHs.
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