期刊
JOURNAL OF NATURAL GAS CHEMISTRY
卷 17, 期 4, 页码 369-373出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S1003-9953(09)60011-6
关键词
copper; cobalt; impregnation sequence; synergistic effect; selective hydrogenation; carbon monoxide
Silica-supported CuCo Catalysts were prepared by impregnation method with different impregnation sequence for higher alcohols synthesis. These catalysts were characterized by H-2-TPR, XRD, N-2 adsorption, XPS techniques and CO selective hydrogenation reaction measurement. The effects of impregnation sequence on the structure and performance of catalysts were investigated. and there were important influences on the selectivity to higher alcohols. There was it strong synergistic effect between copper and cobalt for the co-impregnated sample. The CuCo/SiO2 catalyst prepared by co-impregnation showed a better yield of total alcohols, and a higher selectivity to total alcohols which reached 51.5%.
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