The study investigates the combustion and emissions of pellets made from olive and citrus pruning in a small boiler. It highlights the potential of using waste biomass for high-energy biofuel, comparing the emissions of CO, CO2, NOx, SO2, and PM from different pellet mixtures. The results show that citrus pellets have higher ash and moisture content but lower energy value compared to olive pellets. The study emphasizes the importance of proper biomass treatment to improve combustion quality and reduce emissions, aligning with European environmental policies and the circular bioeconomy concept.

The study evaluates the impact of using olivine and K-feldspar as bed materials in fluidized bed gasification of biomass, specifically almond shells. It compares the syngas quality produced by each material, focusing on the composition and contaminants. K-feldspar was found to produce a cleaner, hydrogen-rich syngas with lower concentrations of heavy metals compared to olivine. The research highlights the importance of selecting appropriate bed materials to optimize the gasification process and reduce harmful emissions.

The study evaluates the potential of harvesting wood residues from oak coppices in central Italy for energy production. It highlights the sustainable management of forest residues and the use of advanced mechanization systems to recover biomass efficiently. The research indicates that oak coppices can provide significant biomass for bioenergy, with the quality of the biomass suitable for both domestic and industrial use. The study underscores the importance of adopting advanced forest mechanization to enhance biomass recovery and improve energy production from forest residues.