Title:
Dry Torrefaction of Olive Endocarp for Biochar Production
Author(s):
Legarreta, D., Garrido, L., Cuevas, M., Sánchez, S.
Document(s):
Paper
Poster
Abstract:
The olive endocarp is a by-product of the olive oil industry that is used as biofuel due to its high calorific value and its low ash content. The application of a dry torrefaction treatment (pyrolysis at low temperature) on the olive endocarp could generate a treated solid (biochar) with improved energy properties. In this work, the dry torrefaction of olive endocarps has been studied by modifying the reaction temperature (150-400 ºC) and the heating time (0.5-3.5 hours). The data obtained show that both the temperature and the torrefaction time have important effects on the yields of biochar, as well as on its calorific value, the moisture adsorption capacity and the bulk density. If from the point of view of biochar calorific value, the best torrefaction conditions were 350 ºC-1 h, the maximum apparent energy density of the torrefied biomass (14.0 GJ /m3) was obtained by working at 300 ºC for 1 h.
Keywords:
torrefaction, agroindustrial residues, biochar, olive tree, olive stone, energy densification
Topic:
Biomass Conversion for Bioenergy
Subtopic:
Biomass pretreatment for solid fuels and production of intermediates
Event:
30th European Biomass Conference and Exhibition
Session:
4CV.1.20
Pages:
761 - 764
ISBN:
978-88-89407-22-6
Paper DOI:
10.5071/30thEUBCE2022-4CV.1.20
Price:
FREE
