Artículo
Fast pyrolysis of rice husk under vacuum conditions to produce levoglucosan
Téllez Bernal, Jhoan Francisco
; Silva, Mariana Paola
; Simister, Rachael; Gomez, Leonardo Dario; Fuertes, Valeria Cintia
; de Paoli, Juan Martin
; Moyano, Elizabeth Laura
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Fecha de publicación:
04/2021
Editorial:
Elsevier Science
Revista:
Journal of Analytical and Applied Pyrolysis
ISSN:
0165-2370
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Levoglucosan (LG)-enriched pyrolytic oils were obtained from rice husk by lab-scale fast pyrolysis under vacuum conditions. We studied the effect of the pyrolysis temperature (300−700 °C) and the pretreatment of the biomass, on the pyrolysis product yields and the selectivity for LG formation. The maximum oil yield (47 wt.%) was obtained from hydrochloric acid-leached rice husk at 400 °C, producing 1.4 times more than the amount of oil produced from untreated rice husk at the same temperature. Anhydrosugars were the predominant compounds found in bio-oils under all conditions assessed, LG being the main product. Depending on the pyrolysis conditions, LG concentration was between 9−30 wt.% considering the bio-oil mass, and between 4−60 wt.% considering the initial cellulose mass. 1H NMR experiments were carried out as an alternative and simple technique to directly determine the amount of LG in bio-oils.
Palabras clave:
ACID TREATMENT
,
FAST PYROLYSIS
,
LEVOGLUCOSAN
,
NMR EXPERIMENTS
,
RICE HUSK
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Identificadores
Colecciones
Articulos(INBA)
Articulos de INST.DE INVEST. EN BIOCIENCIAS AGRICOLAS Y AMBIENTALES
Articulos de INST.DE INVEST. EN BIOCIENCIAS AGRICOLAS Y AMBIENTALES
Citación
Téllez Bernal, Jhoan Francisco; Silva, Mariana Paola; Simister, Rachael; Gomez, Leonardo Dario; Fuertes, Valeria Cintia; et al.; Fast pyrolysis of rice husk under vacuum conditions to produce levoglucosan; Elsevier Science; Journal of Analytical and Applied Pyrolysis; 156; 105105; 4-2021; 1-37
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