ANÁLISE DAS PROPRIEDADES DA MADEIRA E DO CARVÃO VEGETAL DE HÍBRIDOS DE EUCALIPTO EM TRÊS IDADES

CERNE

Soares, Vássia Carvalho¹  Pereira, Ariclene Júnior²  Bianchi, Maria Lúcia²  Trugilho, Paulo Fernando²  Höfler, Juliana² 

[1] Instituto Federal Minas Gerais, Bambuí, BR$$;Universidade Federal de Lavras, Lavras, BR$$

关键词: Pyrolysis;    Biomass;    Carbonization;    Chemical composition.;   

DOI  :  10.1590/01047760201521021294

来源: Universidade Federal de Lavras-UFLA

【 摘 要 】

In the present studied was investigated hybrids of Eucalyptus grandis x Eucalyptus urophylla in three different ages. Wood and charcoal characteristics as well as the influence of wood characteristics on the charcoals produced were evaluated. Chemical analyzes (extractives, lignin, ash, elemental analysis), basic density and calorific value - PCS were performed for wood. The charcoals were produced in a muffle type furnace with a heating rate of 1.67 °C.min-1 and an end temperature of 450 °C. Volatile material content, ash content, fixed carbon content, elemental analysis and gravimetric yield of the pyrolysis process were performed for the charcoals. An increase in density values​​, extractives content, carbon content and C/H rate were observed with the maturity of the tree. Other features such as ash content and S/G ratio decreased with the age of the tree. Greater gravimetric yield in charcoal and non-condensable gases were found in more mature materials.

【 授权许可】

Unknown