The oxidation of CH2O in the intermediate temperature range (943-995 K)

S. Hochgreb; R. A. Yetter; F. L. Dryer

doi:10.1016/S0082-0784(06)80256-0

The oxidation of CH₂O in the intermediate temperature range (943-995 K)

S. Hochgreb, R. A. Yetter, F. L. Dryer

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13 Scopus citations

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 or the very fuel-lean conditions, but failed to modelling results are principally sensitive to CH₂O+HO₂→HCO+H₂O₂ (6) and H₂O₂ +M→OH+OH+M (33). Whereas the specific rate of each reaction cannot be independently determined, it is found that the product k₃₃.k₆ is a well defined function of temperature: (3.4±3.0).10²⁸ exp(-(26,800±400)/T). Inadequacies in the mechanism which may be responsible for the disagreement under fuel-rich conditions are discussed.

Original language	English (US)
Pages (from-to)	171-177
Number of pages	7
Journal	Symposium (International) on Combustion
Volume	23
Issue number	1
DOIs	https://doi.org/10.1016/S0082-0784(06)80256-0
State	Published - 1991

All Science Journal Classification (ASJC) codes

General Chemical Engineering
Fuel Technology
Energy Engineering and Power Technology
Mechanical Engineering
Physical and Theoretical Chemistry
Fluid Flow and Transfer Processes

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10.1016/S0082-0784(06)80256-0

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title = "The oxidation of CH2O in the intermediate temperature range (943-995 K)",

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 or the very fuel-lean conditions, but failed to modelling results are principally sensitive to CH2O+HO2→HCO+H2O2 (6) and H2O2 +M→OH+OH+M (33). Whereas the specific rate of each reaction cannot be independently determined, it is found that the product k33.k6 is a well defined function of temperature: (3.4±3.0).1028 exp(-(26,800±400)/T). Inadequacies in the mechanism which may be responsible for the disagreement under fuel-rich conditions are discussed.",

author = "S. Hochgreb and Yetter, {R. A.} and Dryer, {F. L.}",

note = "Funding Information: The invaluable assistance of Mr. Joseph Sivo in preparing and performing the present experiments is gratefully acknowledged. This work was supported by the United States Department of Energy, Chemical Sciences Division, Office of Basic Energy Sciences under grant No. DE-FG02-86ER-13503. One of the authors (S.H.) also acknowledges the fellowship awarded by FAPESP, Brazil,",

year = "1991",

doi = "10.1016/S0082-0784(06)80256-0",

language = "English (US)",

volume = "23",

pages = "171--177",

journal = "Symposium (International) on Combustion",

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AU - Hochgreb, S.

AU - Yetter, R. A.

AU - Dryer, F. L.

N1 - Funding Information: The invaluable assistance of Mr. Joseph Sivo in preparing and performing the present experiments is gratefully acknowledged. This work was supported by the United States Department of Energy, Chemical Sciences Division, Office of Basic Energy Sciences under grant No. DE-FG02-86ER-13503. One of the authors (S.H.) also acknowledges the fellowship awarded by FAPESP, Brazil,

PY - 1991

Y1 - 1991

N2 - 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 or the very fuel-lean conditions, but failed to modelling results are principally sensitive to CH2O+HO2→HCO+H2O2 (6) and H2O2 +M→OH+OH+M (33). Whereas the specific rate of each reaction cannot be independently determined, it is found that the product k33.k6 is a well defined function of temperature: (3.4±3.0).1028 exp(-(26,800±400)/T). Inadequacies in the mechanism which may be responsible for the disagreement under fuel-rich conditions are discussed.

AB - 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 or the very fuel-lean conditions, but failed to modelling results are principally sensitive to CH2O+HO2→HCO+H2O2 (6) and H2O2 +M→OH+OH+M (33). Whereas the specific rate of each reaction cannot be independently determined, it is found that the product k33.k6 is a well defined function of temperature: (3.4±3.0).1028 exp(-(26,800±400)/T). Inadequacies in the mechanism which may be responsible for the disagreement under fuel-rich conditions are discussed.

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The oxidation of CH₂O in the intermediate temperature range (943-995 K)

Abstract

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