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Type: Artigo de periódico
Title: Production of bioethanol, methane and heat from sugarcane bagasse in a biorefinery concept
Author: Rabelo, SC
Carrere, H
Filho, RM
Costa, AC
Abstract: The potential of biogas production from the residues of second generation bioethanol production was investigated taking into consideration two types of pretreatment: lime or alkaline hydrogen peroxide. Bagasse was pretreated, enzymatically hydrolyzed and the wastes from pretreatment and hydrolysis were used to produce biogas. Results have shown that if pretreatment is carried out at a bagasse concentration of 4% DM, the highest global methane production is obtained with the peroxide pretreatment: 72.1 L methane/kg bagasse. The recovery of lignin from the peroxide pretreatment liquor was also the highest, 112.7 +/- 0.01 g/kg of bagasse. Evaluation of four different biofuel production scenarios has shown that 63-65% of the energy that would be produced by bagasse incineration can be recovered by combining ethanol production with the combustion of lignin and hydrolysis residues, along with the anaerobic digestion of pretreatment liquors, while only 32-33% of the energy is recovered by bioethanol production alone. (C) 2011 Elsevier Ltd. All rights reserved.
Subject: Sugarcane bagasse
Anaerobic digestion
Country: Inglaterra
Editor: Elsevier Sci Ltd
Citation: Bioresource Technology. Elsevier Sci Ltd, v. 102, n. 17, n. 7887, n. 7895, 2011.
Rights: fechado
Identifier DOI: 10.1016/j.biortech.2011.05.081
Date Issue: 2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

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