PREPARATION OF Ni-BASED BIMETALLIC CATALYSTS AND THEIR CATALYTIC PERFORMANCE OF HYDRODEOXYGENATION

Abstract

Abstract: A series of Ni-based bimetallic catalysts supported on γ-Al₂O₃ were prepared by impregnation method. The effects of metal promoters (Mo, Co and Ce ) on the hydrodeoxygenation（HDO）performance of Ni-based catalysts were investigated. The catalysts were characterized by XRD, N₂ physical adsorption at low temperature, NH₃-TPD, H₂-TPR and XPS. Using n-butanol as model compound, the HDO performance of catalysts was evaluated in a fixed-bed micro-reactor. The results showed that the promoter Ce had most significant effect on the HDO performance of the catalyst, the complete conversion of n-butanol was achieved at 210 ℃, while the activation of C-O bond by Mo was stronger, and the selectivity of n-butane was higher than that of other promoters.

Key words: Ni-based catalyst, metal promoters, n-butanol, hydrodeoxygenation

References

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