info:eu-repo/semantics/article
Valorization of olive tree pruning: Application for energy storage and biofuel production
Fecha
2021-12Registro en:
Mamaní, Arminda Noemí; Maturano, Yolanda Paola; Mestre Furlani, María Victoria; Montoro, Maria Laura; Gassa, Liliana Mabel; et al.; Valorization of olive tree pruning: Application for energy storage and biofuel production; Elsevier Science; Industrial Crops and Products; 173; 12-2021; 1-10
0926-6690
CONICET Digital
CONICET
Autor
Mamaní, Arminda Noemí
Maturano, Yolanda Paola
Mestre Furlani, María Victoria
Montoro, Maria Laura
Gassa, Liliana Mabel
Deiana, Ana Cristina
Sardella, Maria Fabiana
Resumen
This work addresses the valorization and integral use of an abundant agro-industrial waste in sustainable production routes. Olive tree pruning residues were used to obtain bioethanol and activated carbon. This was latter applied to supercapacitor electrodes preparation and also as a detoxifying agent. On the bioethanol route, the residue was pretreated with lime, hydrolyzed and subsequently fermented with native yeasts. The maximum ethanol concentration was obtained by Candida sake BCs88 (3.3 g/l). Prior to fermentation, the liquor was detoxified with activated carbon, achieving removal percentages of inhibitor compounds of 89.2 %, 32.6 % and 91.8 % for polyphenols, hydroxymethylfurfural and furfural, respectively. Detoxification stage improved markedly the performance of all yeasts. KOH was used to obtain the activated carbon, reaching a BET surface of 4083 m2/g. It was applied as supercapacitor electrode generating a high specific capacitance of 264.38 F/g at a current density of 0.5 A/g, and delivering elevated values of energy density (17.83 Wh/kg) and power density (65 W/kg).