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Type: Artigo de periódico
Title: Production Of Bioethanol, Methane And Heat From Sugarcane Bagasse In A Biorefinery Concept.
Author: Rabelo, S C
Carrere, H
Maciel Filho, R
Costa, A C
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 Lmethane/kgbagasse. 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.
Subject: Calcium Hydroxide
Chromatography, High Pressure Liquid
Hot Temperature
Hydrogen Peroxide
Citation: Bioresource Technology. v. 102, n. 17, p. 7887-95, 2011-Sep.
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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