Global Rate Expression for Nitric Oxide Reburning. Part 2

An investigation of a global reburning-NO reaction, ∑ ij C i H j + NO → HCN + . . ., which is a reduction pathway of nitric oxide (NO) by reaction with gaseous hydrocarbons, was conducted. The global reburning-NO rate expression was deduced from a combination of elemental reactions. The global rate expression and its rate constants were then determined by correlating predicted species profiles from simple hydrocarbon flames. This global reburning-NO rate constant can be expressed as 2.7 × 10 6 exp(−18 800/ RT ) (gmol/cm 3 s). This expression and constants are applicable to atmospheric pressure with an equivalence ratio range of 1.0−2.08 for light hydrocarbon reburning gases (CH 4 and C 2 H 4 ).