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CO2 reforming of methane over modified Ni/ZrO2 catalysts
被引:0
|作者:
Li, XS
[1
]
Chang, JS
[1
]
Tian, MY
[1
]
Park, SE
[1
]
机构:
[1] Korea Res Inst Chem Technol, Catalysis Ctr Mol Engn, Taejon 305600, South Korea
关键词:
CO2;
reforming;
Ni/ZrO2;
support modification;
alkaline-earth metal oxides;
promoters;
D O I:
10.1002/1099-0739(200102)15:2<109::AID-AOC102>3.0.CO;2-U
中图分类号:
O69 [应用化学];
学科分类号:
081704 ;
摘要:
CO2 reforming of methane was performed over two series of modified Ni/ZrO2 catalysts having high nickel contents. One is the modification of zirconia with lanthanum-, cerium- or manganese-oxide. Among them, Ni/La-ZrO2 exhibited the highest activity and good stability, whereas Ni/Ce-ZrO2 and Ni/Mn-ZrO2 gave low carbon formation during the reaction. The other modified catalysts were prepared by adding basic oxides to the nickel side. Ni-Mg/ZrO2 exhibited the best activity and stability, wherein a magnesium promoter is attributed to increasing the dispersion of nickel and enhancing the interaction between CO2 and the catalyst during the CO2 reforming, Copyright (C) 2001 John Wiley & Sons, Ltd.
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页码:109 / 112
页数:4
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