Effects of Y2O3-modification to Ni/γ-Al2O3 catalysts on autothermal reforming of methane with CO2 to syngas
作者： Laizhi Sun , Yisheng Tan , Qingde Zhang , Hongjuan Xie , Faen Song
DOI: 10.1016/J.IJHYDENE.2012.11.114
关键词:
摘要: The effects of Y2O3-modification to Ni/γ-Al2O3 catalysts on autothermal reforming methane syngas were investigated. It was found that the introduction Y2O3 (5%, 8%, 10%) lead significant improvement in catalytic activity and stability, H2/CO ratio could be adjusted via controlling O2/CO2 feed gas. According characterization results before after reaction, it Y2O3·γ-Al2O3 supported Ni had higher NiO reducibility, smaller particle size, dispersion stronger basicity than those catalysts. analysis reaction showed addition inhibited sintering, changed type coke decreased amount All experimental indicated resulted excellent performances methane, played important roles preventing metal sintering deposition size dispersion,
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