Title:
Improvement of the Energetic Characteristics of Exhausted Olive Pomace by Low Temperature Pyrolysis and Leaching of Biochars
Author(s):
Soler Núņez, P.J., Cuevas Aranda, M., Karim, A.A., Chafi, S., Martínez Cartas, M.L.
Document(s):
Paper
Poster
Abstract:
Currently, exhausted olive pomace is one of the most abundant byproducts generated by the olive oil industry, primarily used as a low-quality industrial biofuel due to its low calorific value and high ash content. This study investigates the conversion of exhausted olive pomace into biochar with enhanced energy properties. To achieve this, a combination of low-temperature pyrolysis (T = 500 ēC) and subsequent leaching of the biochars using hot water in shaker and microwave oven was studied. The energy characteristics of the solids were determined through parameters such as high calorific value and ash percentage, while the leaching stage examined the effect of the extracting solvent on ash content reduction and the properties of the liquid extracts. The laboratory-scale protocol allowed allowed to obtain a new biofuel with a calorific value 29.3% higher than the original one, maintaining approximately the same percentage of ash.
Keywords:
biochar, leaching, exhausted olive pomace
Topic:
Biomass Conversion to Intermediate Bioenergy Carriers and Sustainable Biofuels
Subtopic:
Pyrolysis
Event:
33rd European Biomass Conference and Exhibition
Session:
5BV.8.8
Pages:
1018 - 1020
ISBN:
978-88-89407-25-7
Paper DOI:
10.5071/33rdEUBCE2025-5BV.8.8
Price:
FREE
