Carbon dioxide reforming of methane by solid state synthesis supported catalysts

Ni catalyst supported on MgAl₂O₄ mixed oxide was prepared by solid state synthesis, coprecipitation and wet impregnation. The mixed oxide support was synthesized by the solid state synthesis at room temperature (MgAl₂O₄ solid) and co-precipitation method (MgAl₂O₄ cop) respectively, followed by wet impregnation for Ni loading. The catalytic performances of these samples were compared in carbon dioxide reforming of methane at 700 °C. The results showed that the catalyst Ni/MgAl₂O₄ solid with mixed oxide support prepared by solid state synthesis greatly affected the properties and performance of the catalyst. The catalyst Ni/ MgAl₂O₄ solid showed higher CO₂ and CH₄ conversion than the Ni/ MgAl₂O₄ cop catalyst with the support prepared by conventional co-precipitation method. In addition, the BET surface area of the catalyst MgAl₂O₄ solid was three times larger than the catalyst Ni/ MgAl₂O₄ cop.