Banca de QUALIFICAÇÃO: JEYMMY RAYENA ALVES OLIVEIRA

TECHNICAL FEASIBILITY STUDY OF A FIXED METAL FURNACE CARBONIZATION OF WOOD WASTE AND CHARACTERISTICS QUANTITATIVE AND QUALITATIVE COAL

Waste, fixed metal furnace, energy potential.

In an attempt to improve traditional charcoal production methods, metal furnaces have been
improved in order to achieve results in terms of reducing carbonization time, increasing
yields, and using by-products. The research aimed to develop a study of carbonization tests
with wood residues from the Forest Management Plan in a fixed metal furnace, and to carry
out qualitative studies regarding the physical, chemical, energetic and mechanical
characteristics of the charcoal produced. Five carbonizations were carried out and wood of
different densities (low, medium, high) was collected, ten wood specimens were obtained for
each of these classifications, obtaining thirty specimens per batch, carried out at Fazenda Rio
Capim, belonging to the KEILLA Group, in the Municipality of Paragominas – PA.
Qualitative analyzes were carried out on the samples of coal produced in the fixed metallic
furnace regarding physical characteristics such as (moisture content, basic, apparent and bulk
density), chemical characteristics (content of volatiles, ash, fixed carbon), energy potential
and mechanics of the coal . In the partial results obtained from the physical analyzes referring
to the moisture content of the wood, averages of 32.48% (low density), 33.43% (medium
density) and 25.32% (high density) were obtained, with no statistical difference. significant
difference between wood moisture content values between density groups. For basic density,
averages were 0.45 g/cm³ (low density), 0.64 g/cm³ (medium density) and 0.85 g/cm³ (high
density). For apparent density, the averages were 0.723 g/cm³ (low density), 1.018 g/cm³
(medium density) and 1.260 g/cm³ (high density). Bulk density analyzes ranged on average
from 261 kg/m³ to 270 kg/m³. It is concluded that the partial results presented are similar to
those found in the literature, therefore, the density and humidity of wood plays a crucial role
in charcoal production, directly affecting energy efficiency, the quality of the final product
and the carbonization process itself.