Influence of Mg-promoted Ni-based Catalyst Supported on Coconut Shell Carbon for CO2 Methanation

摘要

This study aims to investigate the conversion of CO2 and H2 into CH4 under atmospheric pressure. A series of nickel-based catalysts using coconut shell carbon were prepared by co- impregnation method, and the coconut shell carbon carrier in the CO2 methanation demonstrated its advantage by compar- ison with the alumina and zirconia supports. Magnesium modified Ni/coconut shell carbon catalysts were studied to explore the catalytic performances, the morphology and properties of all catalysts were characterized by CO2-TPD, XRD, SEM, BET, FTIR, TEM and H2-TPR. Catalytic performances were experimentally evaluated in a fixed bed tubular reactor under atmospheric pressure, WHSV of 10,000 mlh