Combined carbon dioxide reforming and partial oxidation of methane to syngas over Ni-La2O3/SiO2 catalysts in a fluidized-bed reactor
Combined carbon dioxide reforming and partial oxidation of methane to syngas over Ni-La2O3/SiO2 catalysts in a fluidized-bed reactor
复制标题
流化床反应器中 Ni-La2O3/SiO2 催化剂联合二氧化碳重整和甲烷部分氧化生成合成气
DOI：
10.1021/ef0498521
复制
发表时间：
2005-01-01
期刊：
影响因子：
5.3
通讯作者：
Fei, JH
中科院分区：
文献类型：
--
作者：
Mo, LY;Zheng, XM;Fei, JH
Catalysts of Ni/SiO2 and Ni-La/SiO2 were prepared using the incipient-wetness impregnation method. The prepared catalysts were used to produce syngas from a combined reaction of CO2 reforming and partial oxidation of methane in a fluidized-bed reactor. Ni/SiO2 exhibited excellent resistance to carbon deposition and stable catalytic performance upon promotion with La2O3. The promoter (La2O3) increased the dispersion of nickel crystallites and prevented their sintenrig during the reaction. Consequently, the adsorption abilities of oxygen and CO2 were enhanced and the rate of carbon elimination was therefore increased. Temperature-programmed reduction and X-ray diffraction characterization revealed that the promotion effect of La2O3 originated from its strong interaction with nickel.
