Propriedades do carvão vegetal de frutos de Cocos nucifera L. e da madeira de Eucalyptus sp.

Abstract

The aim of this study was the characterization of charcoal the-bay-coconut- "Cocos nucifera L." acquired in trade in Cruz das Almas, and comparing the properties of this charcoal with that produced from traditional Eucalyptus. Both Eucalyptus wood and coconuts were shredded and dried to near equilibrium moisture content of the region. We determined the basic density of wood and coconut. Were made three charred of each material using a heating rate of 2OC per minute until the end temperature of 450 OC, in which the charred was maintained for 30 minutes. From carbonization were determined the gravimetric yields and samples were withdrawn coal crushed and classified to determine the chemical analysis (ash content, volatiles and fixed carbon). The basic density of the coconut was 0.222 g / cm 3 and Eucalyptus 0.791 g / cm 3. The charcoal made of coconut 8.02 % ash, 8.97 % volatiles and fixed carbon 82.77 %. The charcoal had Eucalyptus 1.44% ash, 22.39 % of volatiles and fixed carbon 76.09 %. The properties of coconut and Eucalyptus charcoal were different statistically. A low specific gravity as well as coconut high ash content make it impossible for the industrial use, however, none of the properties make it impossible for home use.