Hochgreb, S., Yetter, R.A., and Dryer, F.L. (1990)
The Oxidation of CH2O in the Intermediate Temperature Range
(943-995 K)
23rd Symposium (International) on Combustion 1990, p.171.
Abstract
New atmospheric pressure flow reactor data on the oxidation of formaldehyde in
the temperature range 943-995 K and over equivalence ratios from 0.013 to 36.7
are reported and discussed. A detailed mechanism assembled from previously
published results produced acceptable agreement with the experimental data for
the fuel-lean conditions, but failed to predict results for oxidative pyrolysis.
Analysis of very fuel-lean conditions shows that the modeling results are
principally sensitive to reactions (121) and (-85). Whereas the specific rate of each
reaction cannot be independently determined, it is found that the product
k(121)*k(-85) is a well defined function of temperature: (3.4±3.0)E+28
exp(-(26800±400)/T). Inadequacies in the mechanism which may be responsible
for the disagreement under fuel-rich conditions are discussed.