Characterization of Khaya ivorensis (A. Chev) biomass, charcoal and briquettes

Resumo

The objective of this study was to characterize the biomass, charcoal and briquettes of Khaya ivorensis (African mahogany) wood from a 7-year-old plantation. Five African mahogany trees were selected and wood discs were cut at different longitudinal positions (0, DBH, 25, 50, 75 and 100% of the commercial height). The wood discs were crushed and milled to compose a sample of all longitudinal positions in order to: (i) characterize the biomass, basic and energy densities, proximate analysis and high heating value); and (ii) produce and characterize the briquettes (apparent and energy densities, durability, volumetric expansion and tensile strength by diametric compression). The discs cut at the DBH height were used to produce charcoal for later characterization (apparent relative and energy densities, proximate analysis, high heating value and gravimetric yield). The biomass and charcoal characteristics of 7-year-old Khaya ivorensis indicated lower quality parameters than the main forest species used for energy purposes. Biomass compaction improved its energetic and physical-mechanical characteristics and is the indicated technique for the energetic use of 7-year-old K. ivorensis wood.

Descrição

Palavras-chave

African mahogany, Bioenergy, Juvenile wood, Mogno africano, Bioenergia, Madeira juvenil

Citação

MORAES, Mariana Dianese Alves de et al. Characterization of Khaya ivorensis (A. Chev) biomass, charcoal and briquettes. Scientia Forestalis, Piracicaba, v. 47, p. 34-44, 2019. DOI: 10.18671/scifor.v47n121.04. Disponível em: https://www.ipef.br/publicacoes/scientia/nr121/cap04.pdf. Acesso em: 7 fev. 2025.