Red Mud, which is a by-product of the alumina production Bayer
process, has been used as catalyst mainly to favour hydrogenation
reactions, since Fe2O3 is its main component [19–22]; however,
the presence of other components as SiO2, Al2O3 or TiO2 may con-tribute to plastic wastes cracking. Up to now, very few studies have
been published about the use of Red Mud in pyrolysis [4,23,24].