Steam reforming of glycerol over Ni/Mg/[gamma]-Al2O3 catalysts. Effect of calcination temperatures

• Published in: International journal of hydrogen energy Vol. 37; no. 19; pp. 14926 - 14930
• Main Authors: Dieuzeide, M L, Iannibelli, V, Jobbagy, M, Amadeo, N
• Format: Journal Article
• Language: English
• Published: 01.10.2012
• Subjects: Calcination
• ISSN: 0360-3199
• DOI: 10.1016/j.ijhydene.2011.12.086

The aim of this work is to study the catalytic activity of Ni(10%) based catalysts supported over a-Al2O3 modified with Mg (3%) for the steam reforming of glycerol. Catalysts have been prepared by incipient wetness impregnation method; analysing the effect of the calcination temperature of the modified support and the calcination temperature of the catalysts. Catalysts were characterized by temperature programmed reduction, (TPR), x-ray diffraction (DRX) and BET surface area. All catalysts were tested for this reaction in a fixed bed reactor. The best performance was achieved with the catalyst calcined at 500 degree C being the optimum calcination temperature for the modified support of 900 degree C This behaviour is ascribable to the formation of MgAl2O4 spinel which favours the dispersion of Ni degree , responsible of the catalytic activity.