Reactions of fuel-nitrogen in rich flame gases

摘要: Abstract Fuel-nitrogen fed as ammonia or pyridine to rich flames is mainly present in the burnt gas forms HCN, NH3, NO and N2. The HCN decays this region form more NH3(or species equilibrated with NH3)undergoes two types of reactions: an oxidation at rate R1, reaction N2 R2. total remaining fuel-N not yet converted N2, i.e. RN = + therefore accordance -d[RN] dt =R1 R2 , simultaneous change -d[NO] − Empirically, these rates can be epxressed R 1 5×10 12 [ H 2 O ] NH e −20 kcal /RT mole cc,sec 9×10 . R1 readily interpreted terms elementary reactions; NH2 → H2O. findings are necessarily valid primary zone where other processes also occur. To extent that all added attains R2, however, yield predictable a priori. prediction agrees roughly yields observed.