Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/46034
Título: Quality and energetic evaluation of the charcoal made of babassu nut residues used in the steel industry
Título(s) alternativo(s): Qualidade e avaliação energética do carvão vegetal dos resíduos do coco babaçu para uso siderúrgico
Palavras-chave: Alternative biomass
Renewable energy
Bio-reducer
Carbonization
Biomassa alternativa
Energia renovável
Biorredutor
Carbonização
Data do documento: Out-2014
Editor: Editora UFLA (Editora da Universidade Federal de Lavras)
Citação: PROTÁSIO, T. de P. et al. Quality and energetic evaluation of the charcoal made of babassu nut residues used in the steel industry. Ciência e Agrotecnologia, Lavras, v. 38, n. 5, p. 435-444, set./out. 2014. DOI: 10.1590/S1413-70542014000500003.
Resumo: Brazil is the only country in the world that uses large scale charcoal in steel-making blast furnaces. Meantime, the monoculture plantations of Eucalyptus are not able to meet the demand for charcoal from the steel industries.Therefore, research is necessary, in order to use lignocellulosic residues for the production of charcoal with technological properties which are suitable for the reduction of iron ore. Given the above, the objective of this study was to evaluate the quality of charcoal which was made with babassu nut shell and designed for utilization in the steel industry in the function of the final carbonization temperature. All three layers of babassu nut shell (epicarp, mesocarp and endocarp) were used together. The initial temperature of the test was 100ºC and the final temperatures were: 450ºC, 550ºC, 650ºC, 750ºC and 850ºC. For the charcoals produced, the following properties were determined: apparent relative density, energy density and fixed carbon stock, in addition to chemical compositions (immediate and elemental) and heating values (higher and lower). Charcoal made of babassu nut shell showed high values of apparent density and energy density, and has a potential to replace coal and wood charcoal in the steel industry. The effect of the final carbonization temperature was expressed for all characteristics evaluated, except for the nitrogen content. Babassu nut shell must be carbonized at temperatures higher than 550ºC, so that the charcoal produced can be used in steel-making blast furnaces.
URI: http://repositorio.ufla.br/jspui/handle/1/46034
Aparece nas coleções:DCF - Artigos publicados em periódicos

Arquivos associados a este item:
Arquivo Descrição TamanhoFormato 
ARTIGO_Quality and energetic evaluation of the charcoal made of babassu nut residues used in the steel industry.pdf803,1 kBAdobe PDFVisualizar/Abrir


Este item está licenciada sob uma Licença Creative Commons Creative Commons