The objective of this study was to evaluate the energy potential of wood and coal of Schizolobium amazonicum (paricá). The trees were collected in the region of Dom Eliseu - PA, at ages 5, 7, 9 and 11 years and sectioned in four logs of 2.7 m each. By using the thermogravimetric analysis of wood, mass loss as a function of temperature was determined. The higher calorific value was obtained according to NBR-8633 standard. Gravimetric yield in coal and its chemical composition were also determined. There was significant effect of age and height in the log only at the temperature range from 300 to 400ºC. The wood calorific value was influenced by the age of trees and the highest value was observed at the age of 5 years. The gravimetric yield and chemical composition of charcoal were not affected by the age of the trees.
Schizolobium amazonicum; Age and Energetic properties
