The Research Of Ni Based Heterogeneous Catalysts For Synthesis Gas Of Methane Reforming

Correspondingly, the research and development of stable catalyst is still the primary objective reforming of CH4. A series of Ni-based bimetallic catalyst supported on Al-Mg composite oxides were designed and prepared for screening. Research found that the Ni-Co combination had superior performance to other bimetallic combinations in terms of catalytic activity, product yield, and stability in the reforming of CH4. A 200h stable operation for CO2 reforming of CH4 has been achieved over a Ni-Co bimetallic catalyst at 750℃, 1 atm, and 110L/gcat-h. Optimization for the Ni-Co bimetallic catalysts were carried out to minimize carbon formation and enhance stability. It was found that catalysts with lower Ni-Co content(0.02-0.04 mol% for Ni and 0.03-0.05 mol% for Co) had high and stable activity with no deactivation and no detectable carbon formation. Catalyst test showed an optimum calcinationtemperature of 900℃at which the catalyst revealed the highest activity for CO2 reforming of CH4 and lowest carbon deposition in comparison with other calcination temperatures.