New experiments conducted in a turbulent flow reactor show kinetic characteristics of methanol oxidation that have not been observed previously. Data are presented for methanol oxidation at equivalence ratios in the range of 0.6#x2212;1.6 and initial temperatures or 1025-1090 K at atmospheric pressure. At intermediate extents of reaction, a marked deceleration in chemical reaction rate is observed to cause a #x201C;plateau#x201D; in the energy release and species concentration profiles. This effect becomes considerably more pronounced with increasing equivalence ratio and is not predicted by the earlier comprehensive kinetic mechanism of Westbrook and Dryer.
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