“…The water generation is again a consequence of the high cellulose content of this sample; several authors (e.g. Demirbas, 2007;Luik et al, 2007;Xi-Feng et al, 2009) have also reported that water is formed in the pyrolysis of cellulose rich samples. In the same way, the authors (de Marco et al, 2002) obtained more than 90 wt% water in the liquids of the pyrolysis of cardboard, result that is quite in accordance with the water yield obtained in this work.…”