Avaliação da qualidade do carvão de quatro espécies florestais

Abstract

Charcoal is a byproduct of the carbonization of wood, which is a renewable energy source, Brazil is the country that produces the most charcoal, and it is also the country with the highest consumption, being the only country in the world to use coal On an industrial scale. The objective of this work was to evaluate the charcoal quality of 4 forest species, characterizing the material and indicating the species with the greatest potential for use. The species studied were Mimosa scabrella Benth. (Fabaceae); Hovenia dulcis Thunb. (Rhamnaceae), Eucalyptus grandis W. Mill ex Maiden (Myrtaceae); Pinus sp. The samples were divided into twenty test specimens for each species, which were carbonized, with a heating rate of 1.5 ° C / minute, chemical and physical evaluations of the carbonized material were done, E. grandis was the one with the highest The percentage of fixed carbon, Pinus sp and H. dulcis did not differ statistically and presented the second best result, for values of calorific value, Eucalyptus grandis presented the best result of 8357 Kcal / kg and Houvenia dulcis the highest yield potential of 7813 kcal / kg. Of the four forest species evaluated, E. grandis was the one that presented the most satisfactory results, the charcoal yield of all species analyzed were proportionally correlated to the moisture content of the wood , The higher the wood moisture content the lower the coal yield.