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Combustion, Explosion and Shock Waves

2017 year, number 4

Experimental and Numerical Investigation of the Chemical Reaction Kinetics in Syngas H2/CO Flame at a Pressure of 1-10 atm

D. A. Knyaz'kov1,2, T. A. Bolshova1, A. M. Dmitriev1,3, A. G. Shmakov1,3, O. P. Korobeinichev1
1Voevodsky Institute of Chemical Kinetics and Combustion, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
2Far Eastern Federal University, Vladivostok, 690950 Russia
3Novosibirsk State University, Novosibirsk 630090 Russia
Keywords: синтез-газ, молекулярно-пучковая масс-спектрометрия, пламя предварительно перемешанной смеси, численное моделирование, высокое давление, syngas, molecular beam mass spectrometry, premixed flame, numerical simulation, high pressure


The structure of a premixed flame of syngas (H2/CO/O2/Ar = 0.0667/0.0667/0.0667/0.8) of stoichiometric composition stabilized on a flat burner at a pressure of 5 atm was studied experimentally and by numerical simulation. The chemical-kinetic mechanisms for the oxidation of a H2/CO mixture proposed in the literature. Good agreement was found between the results of the experiment and simulation. Calculations of the flame structure of the same composition at a pressure of 1 and 10 atm were performed to establish the effect of the pressure on the chemical reaction kinetics in the syngas flame. The results were explained by kinetic analysis of the mechanisms.