Journal ArticleDOI
Overall reaction rates of NO and N2 formation from fuel nitrogen
G. G. De Soete
- Vol. 15, Iss: 1, pp 1093-1102
TLDR
In this paper, the reaction rates of formation of NO and N2 were determined from measurements carried out on flat premixed hydrocarbon/oxygen argon (or helium) flames, into which small amounts of ammonia, or cyanogen are added.Abstract:
From measurements carried out on flat premixed hydrocarbon/oxygen argon (or helium) flames, into which small amounts of ammonia, or cyanogen are added, overall reaction rates of formation of NO and N2 are determined. From similar measurements effected on nitrogen-diluted ethylene/oxygen flames, an overall rate of prompt NO formation is obtained. The discussion of these rate constants indicates that the relative importance of HCN molecules as intermediates in the fuel NO mechanism increases according to the following sequence of primary fuel nitrogen compounds: ammonia, cyanogen and molecular nitrogen; this last is found to behave like a true fuel nitrogen compound in the early flame stages. Experimental values of the total yield of nitric oxide obtained from the added nitrogen compounds have been determined; they are found to be in good agreement with yields calculated by numerical integration of the empirical overall reaction rates of NO and N2 formation, showing almost the same dependence of the NO yield on temperature, initial fuel nitrogen concentration and oxygen concentration.read more
Citations
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Journal ArticleDOI
Oxy-fuel coal combustion—A review of the current state-of-the-art
TL;DR: In this paper, the authors present a detailed analysis of the nitrogen and sulphur chemistry in a laboratory-scale facility under oxy-fuel combustion conditions, in particular with respect to the combustion mechanism, pollutant reduction, the risk of corrosion, and the properties of the fly ash or its resulting deposits.
Journal ArticleDOI
NOx control through reburning
L. D. Smoot,Scott C. Hill,H. Xu +2 more
TL;DR: A review of reburning technologies, measurements and mechanisms is presented in this article, where the authors also discuss predictive methods for rebURNing and their application to a comprehensive combustion model.
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Oxy-fuel combustion of pulverized fuels: Combustion fundamentals and modeling
Chungen Yin,Jinyue Yan +1 more
TL;DR: In this article, the authors present a state-of-the-art review and an in-depth discussion of pulverized fuels (PF) oxy-fuel combustion fundamentals and their modeling, which underpin the development of this promising technology.
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Co-firing based on biomass torrefaction in a pulverized coal boiler with aim of 100% fuel switching
TL;DR: Torrefied biomass has several benefits, such as higher energy density, good grindability, higher flowability and uniformity as mentioned in this paper, such as high energy efficiency, high energy density and high grindability.
Book ChapterDOI
Chapter 4 Mathematical tools for the construction, investigation and reduction of combustion mechanisms
Alison S. Tomlin,Alison S. Tomlin,Tamás Turányi,Tamás Turányi,Michael J. Pilling,Michael J. Pilling +5 more
TL;DR: This chapter provides an introduction to most of the mathematical methods used for the construction, investigation, and reduction of combustion mechanisms, including the quasi-steady-state approximation and lumping.
References
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Journal ArticleDOI
Formation of nitric oxide from fuel nitrogen in ethylene flames
TL;DR: In this paper, the yield of nitric oxide from small additions of various nitrogen compounds was measured in premixed ethylene flames of mixture strengch= 0.9 to 2.0 and of temperature = 1860 to 2250°K.
Journal ArticleDOI
The Formation of Nitric Oxide and the Detection of HCN in Premixed Hydrocarbon-Air Flames at 1 Atmosphere
TL;DR: In this article, the NO concentration profiles of premixed hydrocarbon-air flames were measured using probe sampling and ultraviolet absorption of NO. The measurements show the formation of nitric oxide according to the Zeldovich mechanism with k 1 = 5·1013 exp(−75400/RT) cm3/mol.
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