Forno container para produção de carvão vegetal: desempenho, perfil térmico e controle da poluição

• Ano de defesa: 2002
• Autor(a) principal: Barcellos, Daniel Camara
• Orientador(a): Pimenta, Alexandre Santos
• Banca de defesa: Silva, Juarez de Souza e , Carvalho, Ana Márcia Macedo Ladeira
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Viçosa
• Programa de Pós-Graduação: Mestrado em Ciência Florestal
• Departamento: Manejo Florestal; Meio Ambiente e Conservação da Natureza; Silvicultura; Tecnologia e Utilização de
• País: BR
• Palavras-chave em Português: Carvão vegetal; Forno container; Madeira; Fornalha celular; Poluição; Biomassa florestal; Energia florestal
• Palavras-chave em Inglês: Charcoal; Carbonization container; Wood; Cell Furnace; Pollution; Forest biomass; Forest Energy
• Área do conhecimento CNPq: CNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL::TECNOLOGIA E UTILIZACAO DE PRODUTOS FLORESTAIS
• Link de acesso: http://locus.ufv.br/handle/123456789/3147

A carbonization container kiln for charcoal production with a firewood capacity of 1,5 st together with a cellular furnace for grain heating which was used for burning pollutant gases was developed and evaluated. Thermal pairs were inserted in the combined oven-furnace with the objective of establishing the thermal profile of the system. The carbonization container average heating rate was 47 0C/h reaching a final average temperature of 432 OC in approximately 9,2 hours. The firewood used was Eucaliptus sp. having a humidity average on dry base of 41% , and a basic density of 0,5 g/cm3. Most variables that evaluated the firewood quality were similar to the ones which are obtained in the carbonization systems traditionally used. However, a low charcoal ashes content, inferior to 1%, and an elevated charcoal porosity, superior to 75% were verified. The gravimetric yield in charcoal was placed between 28 and 38%. The elimination of gases from the carbonization through their burning in the furnace was efficient, and the gases outlet average temperature after their burning was 630 0C superior to some burners used commercially indicating great efficiency of the furnace besides the possibility of generating considerabIe energy that could be used for other purposes.