Custo de produção das biomassas de eucalipto e capim-elefante para energia

CERNE

Quéno, Laurent Marie Roger¹  Ângelo, Humberto²  Martins, Ildeu Soares²  Souza, Álvaro Nogueira de²  Vale, Ailton Teixeira do² 

[1] Universidade de Brasília, Anápolis$$;Universidade de Brasília, Brasília$$

关键词: Eucalyptus sp.;    Pennisetum sp.;    biomass;    bioenergy;    average production cost.;   

DOI  :  10.1590/S0104-77602011000300017

来源: Universidade Federal de Lavras-UFLA

【 摘 要 】

This work established the unit energy cost generated from biomass of eucalyptus (Eucalyptus sp.) and elephant grass (Pennisetum sp.) and applied a sensitivity analysis to verify the influences of factors such as the silviculture of eucalyptus, production volume of each species, the cost of land and the interest rate. It was shown that the treatment of eucalyptus in very short rotation of 2 years with reform of stand every 6 years has a average cost of production higher than the traditional treatment of short rotation of 6 years with reform only at the age of 18. It was also observed that eucalyptus has a Production Cost on average of R$ 4,41 /Gj, lower than the elephant grass which is on average of R$ 5,44/Gj, which however has a higher annual capacity of dry matter production. The elephant grass has the possibility to compete with eucalyptus when a set of conditions is met: discount rate higher than or equal to 8%, High price of land, and elephant grass high volume production, greater than or equal to 35 tonnes of dry matter per hectare and year.

【 授权许可】

Unknown