Numerical investigation of components influence on characteristics of autothermal reforming of methane in micro premix chamber

Abstract This paper focuses on investigating that the influence of O 2 , CO 2 and H 2 O on characteristics of autothermal reforming of methane in micro premix chamber on Ni catalysts. In addition, the effect of catalytic wall temperature on autothermal reforming reaction of methane under a certain ratio of CH 4 /CO 2 /H 2 O/O 2 is simulated. The results indicate that appropriately increasing O 2 concentration can increase the conversion efficiency of CH 4 , so does adding CO 2 or H 2 O. The positive effect of O 2 , CO 2 and H 2 O is more pronounced at the higher temperature. The temperature range of 650–750 K is the important transitional region in the reactions of CH 4 /O 2 , CH 4 /H 2 O and CH 4 /CO 2 . It also gives a guide to the available range of parameters in the high efficiency reforming process of micro-reactor.