Rate constrained partial equilibrium models for the formation of nitric oxide from organic fuel nitrogen

Flagan, Richard C.; Galant, S.; Appleton, John P.

doi:10.1016/0010-2180(74)90045-5

Cited by 26 publications

(5 citation statements)

References 8 publications

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“…All indications are that the oxidation of fuelbound nitrogen compounds to NO is rapid and occurs on a time scale comparable to the energy-release reactions in the combustion systems. This conclusion arises from the fact that the NH and CN oxidation reactions discussed in the previous section are faster [19,20] than the important chain branching reaction…”

Section: Figure 87mentioning

confidence: 96%

“…8. 19 are signifi cant in that, for values of φ less than the maximum shown, premixed fl ame conditions exist. Since the fl ammability limit lies between the critical sooting equivalence ratio and the maximum φ for sooting, it is possible to conclude that, under all premixed fl ame conditions, fuel structure plays no role in the sooting tendency.…”

mentioning

confidence: 92%

“…19 Peak extinction coeffi cient versus equivalence ratio of fuel/oxygen stream mixture in propane and ethene opposed-jet diffusion fl ames. f w is the fuel injection parameter.…”

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confidence: 99%

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Environmental Combustion Considerations

Glassman¹,

Yetter²

2008

Combustion

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Section: Figure 87mentioning

confidence: 96%

mentioning

confidence: 92%

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Environmental Combustion Considerations

Glassman¹,

Yetter²

2008

Combustion

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“…The special case that no nitric oxide is present in the initial state, i.e.,

y_{NO}^{(1)}

= 0, is typically relevant for the formation of nitric oxide from fuel‐nitrogen and was consequently used by several researchers, e.g., , , . The general form of Eq.…”

Section: Analytical Solution For the Conversion Factormentioning

confidence: 99%

“…The conversion of fuel‐nitrogen is fast and occurs essentially in the flame front. The extent of conversion of this fuel‐nitrogen into nitric oxide is kinetically controlled and depends strongly on combustion conditions, but only slightly on the identity of the parent nitrogen compound , . The chemistry of fuel‐nitrogen conversion is very complex.…”

Section: Introductionmentioning

confidence: 99%

An Engineering Approach for Estimating the Formation of Nitric Oxide from Fuel‐Nitrogen

Förtsch

2019

Chem Eng & Technol

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Explicit approximate equations for estimating the conversion factor of fuel‐nitrogen into nitric oxide are presented. They depend on the fuel‐nitrogen mole fraction, the initial nitric oxide mole fraction, and the kinetics‐equilibrium mole fraction of nitric oxide. This last parameter expresses a limiting value of fuel‐nitrogen conversion; it includes the complex nitrogen chemistry and depends thus on combustion conditions. Experimental results demonstrate that the kinetics‐equilibrium mole fraction for fuel‐lean and high‐temperature conditions can be well estimated by the chemical‐equilibrium mole fraction, but for lower temperatures the kinetics‐equilibrium mole fraction has to be described by other correlations.

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On the fate of fuel nitrogen during coal char combustion

Wendt

Schulze

1976

AIChE Journal

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The physical and chemical characteristics that influence the conversion of fuel nitrogen to nitrogen oxides during coal char combustion were theoretically examined by using a simplified model in which nitric oxide is an intermediate product between fuel nitrogen and N2.It was found that diffusion‐reaction interactions were important in determining the selectivity of the char particle toward nitric oxide production. At low temperature fluidized bed combustion conditions, pore size is important, and low conversion of fuel nitrogen to nitric oxide is favored by long narrow pores. Under high temperature, pulverized coal combustion conditions, the model provided insight into mechanisms of nitric oxide formation and predicted the observed weak temperature dependence of fuel nitrogen conversion, as well as a significant effect of particle size.

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Rate constrained partial equilibrium models for the formation of nitric oxide from organic fuel nitrogen

Cited by 26 publications

References 8 publications

Environmental Combustion Considerations

Environmental Combustion Considerations

An Engineering Approach for Estimating the Formation of Nitric Oxide from Fuel‐Nitrogen

On the fate of fuel nitrogen during coal char combustion

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