Torrefação de cavacos de eucalipto para fins energéticos

Content Provider	Semantic Scholar
Author	Pereira, Matheus Perdigão De Castro Freitas Costa, Emylle Veloso Santos Pereira, Bárbara Luísa Corradi Carvalho, A. Carneiro, Angélica De Cássia Oliveira Costa, Aylson
Copyright Year	2016
Abstract	Torrefaction also known as pre-carbonization is heat treatment at low temperatures (200 oC to 300 °C), applied to lignocellulosic materials with the aim of improving their energetic properties. We developed this study to evaluate the effect of torrefaction temperature on properties of eucalyptus chips. Using a furnace, the eucalyptus chips underwent four heat treatments at temperatures of 150 oC, 200 oC, 250 oC and 300 °C, for ten min. Physical and chemical analyzes of torrefied and in natura chips were carried out. The results were submitted to analysis of variance and when established significant differences, applied Tukey test at 95% significance. Increasing roasting temperature showed higher lignin content and fixed carbon, less equilibrium moisture content, higher calorific upper, lower content of volatiles and lower mass yield. It is recommended roasting at 250 °C temperature, since chips torrefied under this condition presented better results, with energy density of 4,004 MJ m -3 .
Starting Page	269
Ending Page	275
Page Count	7
File Format	PDF HTM / HTML
DOI	10.4336/2016.pfb.36.87.1093
Volume Number	36
Alternate Webpage(s)	https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/download/1093/518
Alternate Webpage(s)	https://doi.org/10.4336/2016.pfb.36.87.1093
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article