%0 Journal Article %A Anmin Zhao and Weiyong Yingı and Haitao Zhang and Hongfang Ma and Dingye Fang %D 2011 %J International Journal of Chemical and Molecular Engineering %B World Academy of Science, Engineering and Technology %I Open Science Index 59, 2011 %T La promoted Ni/α-Al2O3 Catalysts for Syngas Methanation %U https://publications.waset.org/pdf/8197 %V 59 %X The Ni/α-Al2O3 catalysts with different amounts of La as promoter from 0 to 4 wt % were prepared, characterized and their catalytic activity was investigated in syngas methanation reaction. Effects of reaction temperature and lanthanum loading on carbon oxides conversion and methane selectivity were also studied. Adding certain amount of lanthanum to 10Ni /α-Al2O3 catalysts can decrease the average NiO crystallite diameter which leads to higher activity and stability while excessive addition would cause deactivation quickly. Stability on stream towards deactivation was observed up to 800 min at 500 °C, 0.1MPa and 600000 mL·g-1·h-1. %P 1053 - 1057