Investigation of NOx formation and removal mechanisms in hydrocarbon-air flames. Annual report, June 1987-June 1988
In this research program, the kinetics of NOx formation and removal in combustion of gaseous fuels are being investigated. The program addresses uncertainties in reaction mechanism and rate parameters and the coupling of NO formation and removal reactions with the hydrocarbon combustion reactions. Significant progress was made on development of a detailed kinetics model for predicting CH profiles in the pyrolysis of highly dilute CH/sub 4//Ar and C/sub 2/H/sub 6//Ar mixtures. The model was used in the analysis of data from the kinetics experiments described below. Kinetics experiments using a CH laser diagnostic were performed with C/sub 2/H/sub 6//Ar mixtures alone and with varying amounts of N/sub 2/ or NO to determine the rates of CH + N/sub 2/ -> products; and CH + NO -> products. In addition, atomic resonance absorption was applied to detect N atoms and O atoms and laser absorption to detect OH in order to determine the products of reactions. Analysis of the data from these experiments is in progress. Finally, in the absence of a CH/sub 2/ diagnostic, the authors have attempted to determine the rate of CH/sub 2/ + N/sub 2/ -> HCN + NH indirectly by measuring production of NH using a laser-absorption technique.
- Research Organization:
- Stanford Univ., CA (USA). High Temperature Gasdynamics Lab.
- OSTI ID:
- 6625557
- Report Number(s):
- PB-89-103907/XAB
- Resource Relation:
- Other Information: See also PB--88-112750
- Country of Publication:
- United States
- Language:
- English
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