Syngas Oxidation Mechanism

A comprehensive analysis of synthesis gas (syngas) oxidation kinetics in wide ranges of temperature, pressure, fuel-to-air equivalence ratio, and fuel composition is performed on the basis of the reaction mechanism of syngas ignition and combustion in air. A vast set of experimental data on the ignition delay time, laminar flame propagation velocity, and time evolution of mole fractions of the basic species, which were obtained in shock tubes and in a flow reactor, is used for verification of the kinetic model. Based on a sensitivity analysis, it is shown that the role of reactions determining the basic characteristics of ignition and combustion depends on the composition of the fuel-air mixture and the syngas proper.