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Thermal reaction of CH2O with NO2 in the temperature range of 393–476 K: FTIR product measurement and kinetic modeling

✍ Scribed by Yisheng He; Elizabeth Kolby; Peter Shumaker; M. C. Lin

Publisher
John Wiley and Sons
Year
1989
Tongue
English
Weight
526 KB
Volume
21
Category
Article
ISSN
0538-8066

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✦ Synopsis

The thermal reaction of CHzO with NO2 has been investigated in the temperature range of 393-476 K by means of FTIR product analysis. Kinetic modeling of the measured CH20, NO, CO, and CO, concentration-time profiles under varying reaction conditions gave rise to the rate constants for the following key reactions:

(1)

The error limits shown represent only the scatter ( t 1 a) of the modeled values. In the modeling, the total rate constant for the CHO + NO2 reaction, k , + k,, was not varied and the value reported by Gutman and co-workers (ref. [ 8 ] ) was used for the whole temperature range investigated here. The proposed reaction mechanism, employing these newly established rate constants, can quantitively account for nearly all measured product yields, including the [CO]/([CO] + [CO,]) ratios reported by earlier workers.

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