Ethanol steam reforming reactions over Al2O3 · SiO2-supported Ni–La catalysts
作者： Lifeng Zhang , Wei Li , Jie Liu , Cuili Guo , Yiping Wang
DOI: 10.1016/J.FUEL.2008.09.030
关键词:
摘要: Abstract Nickel-based catalysts supported on Al2O3 · SiO2 were prepared with modification of the second metal involving La, Co, Cu, Zr or Y, which catalytic behaviors assessed in ethanol steam reforming reaction. Activity test indicated that addition La resulted higher selectivity hydrogen and lower carbon monoxide, compared Co-doped nickel catalyst. Influences lanthanum amounts performance studied over 30NixLa/Al2O3 · SiO2 (x = 5, 10, 15), characterizations by XRD, TPR XPS low amount additives (5%) was superior to inhibit crystal growth as well beneficial reduction oxide. Finally 100 h for optimal catalyst 30Ni5La/Al2O3 · SiO2 its good long-term stability provide high monoxide formation, resistance coke deposition at temperature.
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