Reaction limit analysis of syngas based on CO-DAC method

Correlated dynamic adaptive chemistry(CO-DAC)method based on path flux analysis(PFA)was used to simulate the variation of reaction limits of syngas flames.The computational model was validated, and the result shows that laminar flame propagation can be simulated accurately by current computational program and CO-DAC reduction method, and that the computational time can be reduced significantly by using CO-DAC reduction.Then the variation of syngas reaction limits was investigated.The results show that when the content of CO increases, the variation of syngas reaction limits tends to be flat, the transitions between reaction limits move to lower pressures, and CO-DAC reduction can simulate syngas reaction limits accurately.