Valorization of algal waste via pyrolysis in a fixed-bed reactor: production and characterization of bio-oil and bio-char
Résumé
The aim of the present work is to develop processes for the production of bio-oil and
bio-char from algae waste using the pyrolysis at controlled conditions. The pyrolysis
was carried out at different temperatures 400-600 °C and different heating rates 5-50
°C/min. The algal waste, bio-oil and bio-char were successfully characterized using
Elemental analysis, Chemical composition, TGA, FTIR, 1H-NMR, GC-MS and SEM.
At a temperature of 500 °C and a heating rate of 10 °C/min, the maximum yield of biooil
and bio-char was found to be 24.10 and 44.01wt%, respectively, which was found to
be strongly influenced by the temperature variation, and weakly affected by the heating
rate variation. Results show that the bio-oil cannot be used as bio-fuel, but can be used
as a source of value-added chemicals. On the other hand, the bio-char is a promising
candidate for solid fuel applications and for the production of carbon materials.
Origine : Fichiers produits par l'(les) auteur(s)
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