Catalytic performance of nickel based catalysts for methane thermal decomposition reaction at low temperature
Abstract
In this paper, nickel based catalysts were synthesised by a wet-impregnation method with different supports such as powder SiO2, Al2O3, TiO2, sphere SiO2 and Al2O3. The catalytic performance were investigated in a thermal decomposition methane reaction using a continuous flow reactor. Physico-chemical properties of the catalysts were tested using various methods (such as BET, XRD, SEM). The result revealed that the NiO/powder SiO2 catalysts showed as the best performance with methane conversion 73,9 % at optimal conditions (500 oC, GHSV 12000 h-1, atmosphere pressure), whereas NiO/sphere Al2O3 catalysts easily separated carbon products after the reaction. This finding offer an opportunity for production of hydrogen and carbon at low temperature.
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