Kinetic model on coke oven gas with steam reforming

Abstract

The effects of factors such as the molar ratio of H₂O to CH₄ (n(H₂O)/n(CH₄)), methane conversion temperature and time on methane conversion rate were investigated to build kinetic model for reforming of coke-oven gas with steam. The results of experiments show that the optimal conditions for methane conversion are that the molar ratio of H₂O to CH₄ varies from 1.1 to 1.3 and the conversion temperature varies from 1 223 to 1 273 K. The methane conversion rate is more than 95% when the molar ratio of H₂O to CH₄ is 1.2, the conversion temperature is above 1 223 K and the conversion time is longer than 0.75 s. Kinetic model of methane conversion was proposed. All results demonstrate that the calculated values by the kinetic model accord with the experimental data well, and the error is less than 1.5%.

Keywords

coke oven gas / steam reforming / kinetic model / conversion rate