The Role of Energy-Releasing Kinetics in NOxFormation: Fuel-Lean, Jet-Stirred CO-Air Combustion

作者：Philip C. Malte, D. T. Pratt · 发表于：Combustion Science and Technology · 年份：1974 · DOI：10.1080/00102207408960360 · 被引用次数：137 · 研究领域：Combustion and flame dynamics、Atmospheric chemistry and aerosols、Thermochemical Biomass Conversion Processes

Abstract Oxides of nitrogen concentrations, temperatures and mass flow rates near reactor blowout have been measured for chemically rate-limited, fuel-lean combustion of carbon monoxide with moist air in a jet-stirred reactor at 0.5 and 1 atmosphere. Comparisons with predictions obtained by modeling the jet-stirred reactor as a micromixed perfectly stirred reactor are used to examine the detailed influences of energy-releasing kinetic processes on NOx formation. Reaction radical intermediates and, in particular, oxygen atoms are shown to play a key role in this influence. For fuel-lean combustion, under conditions of intense turbulence and backmixing, super-equilibrium concentrations of oxygen atoms cause N2 O to act as an important intermediate leading to NOx formation. Measurements indicating the influence of finite mixing on experimental reactor performance and NOx emissions are presented as well.