Thermodynamic equilibrium prediction for natural gas dry reforming in thermal plasma reformer

摘要

This paper presents the thermodynamic equilibrium predictions of natural gas dry reforming in a thermal plasma reformer using the HSC Chemistry (R) 5.1 software package from a purely theoretical point of view. The optimal operating condition has been set at a temperature of 850 degrees C and it CO2/CH4 mole flow rate ratio of 1.25. The predicted results show that molar fractions of hydrogen yield reach 43.56% on a wet basis for proton exchange membrane fuel cell applications. For solid oxide fuel cell applications the molar fractions of total fuels in the reformate stream are over 94% on a wet basis. With lower ratio of H-2/CO and high concentration of fuel gases in the reformed synthesized gas, the reformate stream is much preferable to a solid oxide fuel cell system.