Análise imediata e avaliação do poder calorífico superior das espécies Combretum leprosum Mart. (MOFUMBO) e Anadenanthera macrocarpa (Benth.) Brenan (ANGICO)

Abstract

It is not today that concerns about energy efficiency and the environment are putting renewable energy sources at the forefront. Non-renewable sources, in addition to having scarce resources on the planet, contribute to pollution, deforestation and, consequently, global warming. Because of this, the search for renewable energy sources is increasing, and one of these sources is biomass. Biomass can be a good energy option because it is renewable and generates low amounts of pollutants. In an alcohol plant, for example, sugar cane residues (bagasse) can be used to produce energy. In this project we sought information about the energy potential of two species typical of the Caatinga: Combretum leprosum Mart. (MOFUMBO) and Anadenanthera macrocarpa (Benth.) Brenan (ANGICO), taking into account properties of moisture content, ash, volatile materials, fixed carbon and higher calorific value, aiming at a possible application as solid fuel. The experimental procedures were carried out taking into account the methods described in technical standards ASTM D3174, ASTM D3175, ASTM E711-87, ASTM D3173, ABNT NBR 8112, NBR 13999. Analyzing the results obtained, Mofumbo had a higher calorific value of 17, 7895 MJ / kg, moisture content of 8.7%, ash content of 2.12% and volatile material content of 75.36%. Angico had a higher calorific value of 16,75 MJ / kg, a moisture content of 12.85%, an ash content of 2.67% and a content of volatile materials of 82.27%.