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Type: Artigo de periódico
Title: Technical and economic assessment of trash recovery in the sugarcane bioenergy production system
Author: Cardoso, Terezinha de Fátima
Cavalett, Otávio
Chagas, Mateus Ferreira
Morais, Edvaldo Rodrigo de
Carvalho, João Luís Nunes
Franco, Henrique Coutinho Junqueira
Galdos, Marcelo Valadares
Scarpare, Fábio Vale
Braunbeck, Oscar Antonio
Cortez, Luis Augusto Barbosa
Bonomi, Antonio
Abstract: Mechanized sugarcane (Saccharum spp.) harvest without burning has been increasingly adopted in Brazil, increasing trash availability on the field. This study aims at showing the importance of using an integrated framework tool to assess technical and economic impacts of integral harvesting and baling trash recovery strategies and different recovery rates as well as its implications in the sugarcane production, transport and processing stages. Trash recovery using baling system presents higher costs per unit of mass of recovered trash in comparison to system in which trash is harvested and transported with sugarcane stalks (integral harvesting system). However, the integrated agricultural and industrial assessment showed that recovering trash using baling system presents better economic results (higher internal rate of return and lower ethanol production cost) than the integral harvesting system for trash recovery rates higher than 30 %. Varying trash recovery fraction, stalks productivity and mean transport distance for both integral harvesting and baling systems, sensitivity analyses showed that higher trash recovery fractions associated with higher stalks yields and long transport distances favors baling system, mainly due to the reduction of bulk load density for integral harvesting system under those conditions.
Editor: São Paulo - Escola Superior de Agricultura "Luiz de Queiroz"
Rights: aberto
Identifier DOI: 10.1590/S0103-90162013000500010
Date Issue: 1-Oct-2013
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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