Cu and Ni Catalysts Supported on γ-Al2O3 and SiO2 Assessed in Glycerol Steam Reforming Reaction

Journal of the Brazilian Chemical Society

Vivian V. Thyssen¹  Thaisa A. Maia¹  Elisabete M. Assaf¹ 

关键词: nickel;    copper;    catalysts;    glycerol steam reforming;   

DOI  :  10.5935/0103-5053.20140209

来源: SciELO

【 摘 要 】

Cu and Ni catalysts supported on commercial γ-Al2O3 and SiO2 were tested in the glycerol steam reforming. The catalysts wereprepared by the impregnation method and characterized by inductively-coupled plasmaatomic emission spectrometry, nitrogen physisorption, temperature programmedreduction with H2 and X-ray diffraction. The characterization indicatedseveral catalytic species in the samples interacting differently with the supports:NiO, CuO and NiAl2O4. The catalytic tests were performed at 600°C, and the best catalyst was also tested at 500 °C and 700 °C. The results showedthat the presence of NiAl2O4 did not favor the deposition ofcarbon during the reaction, probably due to the greater dispersion of Ni on thecatalyst surface. It was also observed that, although NiSi was the most activecatalyst for H2 production, it also showed the highest carbon depositduring the reaction.

【 授权许可】

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