2.1. Materials
The plastic mixture used for the experiments was composed
of 40 wt% polyethylene, 35 wt% polypropilene, 18 wt% polystyrene,
4 wt% poly(ethylene terephthalate) and 3 wt% poly(vinyl chloride).
The origin and application of each plastic is showed in Table 1.
The proportions of the plastics in the mixture were established
based on the composition of real samples coming from packing and
packaging applications which were characterized by the authors in
a previous paper [25]. All the materials were used in pellet size
(3mm) for the pyrolysis experiments, while finely ground (