NO formation rates for hydrogen combustion in stirred reactors
作者： A.A. Konnov , G. Colson , J. De Ruyck
DOI: 10.1016/S0016-2361(00)00060-0
关键词: Nitrous oxide 、 Atmospheric temperature range 、 Gas composition 、 Radical 、 Chemistry 、 Analytical chemistry 、 Continuous stirred-tank reactor 、 Hydrogen 、 Stoichiometry 、 Combustion
摘要: Abstract The combustion of lean, stoichiometric and rich hydrogen–air mixtures in well-stirred reactors has been modeled the temperature range 1500–2200 K employing a detailed H/N/O reaction scheme, H/O scheme together with algebraic expressions for NO production rate as function local gas composition temperature. Thermal-NO, nitrous oxide, NNH mechanisms nitric oxide formation have taken into account. It is demonstrated that explicit correctly reproduce prediction mechanism residence times longer than about 100 μs at all temperatures this study rich, lean mixtures. With time increase reduced deviates from full one 10 ms. evaluation route showed pathway important short times. At 2100 K higher thermal-NO becomes dominant after 1 ms. Sensitivity analysis clearly demonstrates validity assumptions employed development instantaneous rates hydrogen 1 to 25 ms. A possible new via N2H3 radicals identified.
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