CARACTHERIZATION OF BIOMASS ENERGY AND CARBONIZATION OF COFFEE GRAINS (Coffea arabica, L) AND (Cedrelinga catenaeformis), DUKE WOOD RESIDUES
Titel:
CARACTHERIZATION OF BIOMASS ENERGY AND CARBONIZATION OF COFFEE GRAINS (Coffea arabica, L) AND (Cedrelinga catenaeformis), DUKE WOOD RESIDUES
Auteur:
Ailton Teixeira do Vale Luiz Vicente Gentil Joaquim Carlos Gonçalez Alexandre Florian da Costa
Verschenen in:
Cerne
Paginering:
Jaargang 13 (2007) nr. 4 pagina's 416-420
Jaar:
2007
Inhoud:
Brazil produces annually two million tons of coffee s husks from farms or industrial processing units. This wastematerial can be used for energy production; currently it is mainly used in agricultural practices as field straw cover up. This paperdeals with coffee s (Coffea arabica, L) husks biomass energy characteristics, including wood carbonization. As a reference, the samestudy was performed with a wood species regularly used for building construction named Cedrorana (Cedrelinga catenaeformis,Duke). Coffee s husks was obtained from a farm 150 km far from Brasilia city and cedrorana sawdust from a local saw mill. Thispaper presents results from energy and biomass variables like moisture content, bulk density, lower and superior heating power, ashcontent, fixed carbon, volatile matter and volumetric energy. It has also studied carbonization, charcoal, pyroligneous licqor and noncondensablegases. A comparison between Coffee s husk with 0% moisture content and Cedrorana sawdust portrays the followingresults: bulk density 144.41 kg/m3, fixed carbon 10.31%, superior heating power 4.57 kWh (or 16.46 MJ or 3.933 Mcal/kg), charcoalcontent 40,64% and heating value per cubic meter 2,179 MJ/m3
Uitgever:
Universidade Federal de Lavras - UFLA (provided by DOAJ)