2025-04-15 RENEWABLE ENERGY 2025 243(卷), null(期), (null页)
Considering that the efficient production of charcoal is crucial for energy diversification and the sustainable use of planted forests, especially for regions subject to water stress, this study analyzed how final temperatures (300, 450 and 600 degrees C) and pyrolysis times (4, 5, and 7 h) affect the properties of charcoal from forest plantations in a semi-arid region. It was observed the increasing the final pyrolysis temperature from 300 to 600 degrees C decreased the charcoal yield by 6.72 %, provided higher values for fixed carbon (30.6 % more), heating value (13.9 % more), and stable charcoal consumption during combustion. Apparent density and energy density of charcoal were favored by pyrolysis performed at high temperatures, when combined with reduced pyrolysis times. The control of final pyrolysis temperature and time impacts the quality of wood charcoal from semi-arid regions, providing a product with interesting physical, chemical, thermal and mechanical properties for various industrial sectors.