Hydrogen production by steam reforming of m-cresol, a bio-oil model compound, using catalysts supported on conventional and unconventional supports

The steam-reforming of a bio-oil model compound, like m-cresol, was performed in order to produce renewable hydrogen. Different nickel based catalysts supported on both conventional and unconventional supports, which had also been modified, were tested. Fresh and used catalysts were characterized using different techniques and this characterization was correlated with the reforming experiments results. The highest hydrogen yield was obtained with the catalyst supported on alumina modified with ceria, due to its high dispersion. The use of ceria as a support modifier promoted coke gasification and avoided catalytic deactivation through coking. The catalyst supported on olivine sand presented, among the unconventional supports, the highest hydrogen yield as a result of a recrystallization process that enhanced metal dispersion at high temperatures.