Additive effects of alkaline-earth metals and nickel on the performance of Co/gamma-Al2O3 in methane catalytic partial oxidation

作者：Yu, Changlin^*; Weng, Weizheng; Shu, Qing; Meng, Xiangjie; Zhang, Bin; Chen, Xirong; Zhou, Xiaochun

来源：Journal of Natural Gas Chemistry, 2011, 20(2): 135-139.

DOI：10.1016/S1003-9953(10)60175-2

• alkaline-earth metal
• cobalt-based catalyst
• gamma-alumina
• catalytic partial oxidation methane

Nano-sized gamma-alumina (gamma-Al2O3) was first prepared by a precipitation method. Then, active component of cobalt and a series of alkaline-earth metal promoters or nickel (Ni) with different contents were loaded on the gamma-Al2O3 support. The catalysts were characterized by N-2 adsorption-desorption, X-ray diffraction (XRD) and thermogravimetry analysis (TGA). The activity and selectivity of the catalysts in catalytic partial oxidation (CPO) of methane have been compared with Co/-gamma-Al2O3, and it is found that the catalytic activity, selectivity, and stability an; enhanced by the addition of alkaline-earth metals and nickel. The optimal loadings of strontium (Sr) and Ni were 6 and 4 wt%, respectively. This finding will be helpful in designing the trimetallic Co-Ni-Sr/-gamma-Al2O3 catalysts with high performance in CPO of methane.

• 出版日期2011-3
• 单位江西理工大学; 厦门大学