Abstract:
This research studied methane production of carbon monoxide (CO) and carbon dioxide (CO₂) in a fixed-bed reactor at temperature of 400 600 °C. The other parameters, such as pressure and molar ratio of H2/CO and H₂ /CO₂ which affects to CO and CO₂ %conversion and selectivity of methanation, were also studied. Nickel Oxide supported Talcum (NiO/Talc) was used as a catalyst. The result showed that NiO/Talc was capable of enhancing %conversion and %selectivity of reactants to methane at higher temperature, pressure and molar ratio of H₂. The optimum conditions for CO methanation were temperature of 600 °C at atmospheric pressure with H₂/CO molar ratio about 3 : 1. That gave 100 %conversion and 51.3 %selectivity. The other one, CO₂ methanation, optimum conditions were temperature of 600 °C at atmospheric pressure with H2 /CO₂ molar ratio about 4 : 1. It gave 85 %conversion and 70.5 %selectivity. These results approved that NiO/Talc was able to give high selectivity toward methane for both of CO and CO₂ methanation at temperature of 600 °C and atmospheric pressure.