Kinetic study of combined steam and CO2 reforming of methane over Ni-Sr/MgO-ZrO2 catalyst

Abstract

Abstract. Combined steam and CO2 reforming of methane (CSCRM) has gained increasing attention as a potential solution to mitigate global warming and addressing the demand for alternative energy resources. In this study, the reaction kinetics of CSCRM over high-performance Ni-Sr/MgO-ZrO2 bimetallic catalyst is investigated in a fixed bed reactor. The rate of reaction was analyzed at a temperatures ranging from 700-800℃ and reactant partial pressures of CH4, CO2 and H2O ranging from 5-50 kPa. The apparent activation energies for CH4 and CO2 consumption were found to be 20.94 kJ/mol and 27.53 kJ/mol respectively. The experimental results obtained were then fitted with a Power Law kinetic model and showed good agreement with R2 values of 0.86-0.91.