Catalytic steam reforming of glycerol for renewable hydrogen generation has been investigated over Ni/CeO2 catalyst prepared by precipitation-deposition method. The fresh and used catalysts were characterized by surface area and pore size analysis, X-ray diffraction patterns and scanning electron micrographs. Reforming experiments were carried out in a fixed bed tubular reactor at different temperatures (400-700 ℃), glycerol concentrations (5-15 wt%) and contact times. (W/FAo=2-80 g-cat·h/mol of glycerol). The investigation revealed that the Ni/CeO2 catalyst prepared by the above method is effective to produce high yield of hydrogen up to 5.6 (moles of H2/moles of glycerol fed). The formation of methane and carbon monoxide was greatly reduced over this catalyst. Significantly low amount of coke deposition was observed on the CeO2 supported catalyst. From the kinetic analysis, the activation energy for the steam reforming of glycerol was found to be 36.5 kJ/mol.

Steam Reforming Glycerol Catalyst Ni/CeO2 Renewable Hydrogen

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