Abonnement à la biblothèque: Guest
Portail numérique Bibliothèque numérique eBooks Revues Références et comptes rendus Collections
International Journal of Energy for a Clean Environment
SJR: 0.195 SNIP: 0.659 CiteScore™: 1.2

ISSN Imprimer: 2150-3621
ISSN En ligne: 2150-363X

International Journal of Energy for a Clean Environment

Précédemment connu sous le nom Clean Air: International Journal on Energy for a Clean Environment

DOI: 10.1615/InterJEnerCleanEnv.v5.i3.80
13 pages

A NEW ROUTE OF HCN FORMATION VIA N2O IN GASEOUS HYDROCARBON FLAMES

Jerzy Tomeczek
Katedra Energetyki Procesowej Wydziat Inzynierii Materialowej, Metalurgli i Tra, ul. Krasinskiego 8; and Department of Process Energy, Silesian Technical University, 40-019 Katowice, Poland
Boguslaw Gradon
Department of Process Energy, Silesian Technical University 40-019 Katowice, Poland

RÉSUMÉ

The formation of HCN in flames via N2O reactions with CHi radicals proposed by Gradon (2001) and elaborated later (Tomeczek and Gradon, 2003) into a form of elementary step reactions is tested for rich and lean gaseous premixed CH4/air flames. The new route to HCN is thermodynamically more probable than the Fenimore direct reactions of N2 with CHi radicals. To meet the observed NO formation rates, a set of six reactions is proposed:

N2O + CH3 ⇔ CH2NH + NO,

N2O + CH3 ⇔ CH3O + N2,

CH2NH + H ⇔ H2CN + H2,

CH2NH + O ⇔ H2CN + OH,

H2CN + H ⇔ HCN + H2,

H2CN + O ⇔ HCN + OH.

It has been shown that in rich CH4/air flames, the new mechanism of HCN formation via N2O contributes to about 25% of NO, in comparison with the 17% contribution of the Fenimore mechanism.


Articles with similar content:

CH4, H2S, AND SO2 OXIDATION ON Pt CATALYSTS
International Journal of Energy for a Clean Environment, Vol.7, 2006, issue 3
G. Rickett, M. V. Twigg, J. M. Jones, V. Dupont, S.-H. Zhang
FORMATION AND DECOMPOSITION OF CH2N AND CH2NO IN THE COMBUSTION OF RDX and HMX STUDIED BY QUANTUM CHEMICAL AND STATISTICAL THEORY CALCULATIONS
International Journal of Energetic Materials and Chemical Propulsion, Vol.5, 2002, issue 1-6
Ming-Chang Lin, D. Chakraborty
CHEMICAL KINETICS ANALYSIS FOR LIFTED TURBULENT JET FLAME USING MULTI-FLAMELET GENERATED MANIFOLD APPROACH
Proceedings of the 24th National and 2nd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2017), Vol.0, 2017, issue
Ashoke De, Venu G. Agarwal, Rohit Saini, Rakesh Yadav
Role of CO2 in the Soot Formation and Reduction Mechanisms in CH4 Flat Flame Doped with Toluene under O2/CO2 Environments
International Heat Transfer Conference 15, Vol.7, 2014, issue
Shunsuke Sugai, Ken Okazaki, Hirotatsu Watanabe
EFFECTS OF FLUORINE-CONTAINING SPECIES ON THE IGNITION AND COMBUSTION OF BORON PARTICLES: EXPERIMENT AND THEORY
International Journal of Energetic Materials and Chemical Propulsion, Vol.5, 2002, issue 1-6
Carl Gotzmer, Abdullah Ulas