Catalytic and non-catalytic pyrolysis of Kraft pulp waste into anhydrosugars containing bio-oils and non-phytotoxic biochars

NIEVA, MARÍA LUZ; CAMPITELLI, PAOLA; VOLPE, MARÍA ALICIA; MOYANO, ELIZABETH LAURA

JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS

ELSEVIER SCIENCE BV

Lugar: Amsterdam; Año: 2016 vol. 122 p. 216 - 216

0165-2370

The catalytic and non-catalytic fast pyrolysis process for converting Kraft pulp paper waste into bio-oil and biochar was studied. Catalysis free pyrolysis of untreated Kraft pulp resulted on good yields ofbio-oil (39% at 400◦C), showing a relative high concentration of levoglucosan, while phosphoric acid-pretreated pulp produced lower yields of bio-oil (max. value 14% at 350◦C) being levoglucosenone themain component. The catalytic pyrolysis of pretreated pulp employing silica led to a high yield of theliquid fraction (57% at 400◦C) with a high selectivity to levoglucosan. The biochar produced from asreceived pulp could be envisaged for soil amendment. It displayed a relatively high specific surface area,showing micro and mesoporosity. Besides, no phytotoxic effect of the biochar obtained at 350◦C wasrecorded.