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Type: Artigo de periódico
Title: Effects Of The Pretreatment Method On High Solids Enzymatic Hydrolysis And Ethanol Fermentation Of The Cellulosic Fraction Of Sugarcane Bagasse.
Author: Martins, Luiza Helena da Silva
Rabelo, Sarita Cândida
da Costa, Aline Carvalho
Abstract: This work evaluated ethanol production from sugarcane bagasse at high solids loadings in the pretreatment (20-40% w/v) and hydrolysis (10-20% w/v) stages. The best conditions for diluted sulfuric acid, AHP and Ox-B pretreatments were determined and mass balances including pretreatment, hydrolysis and fermentation were calculated. From a technical point of view, the best pretreatment was AHP, which enabled the production of glucose concentrations near 8% with high productivity (3.27 g/Lh), as well as ethanol production from 100.9 to 135.4 kg ethanol/ton raw bagasse. However, reagent consumption for acid pretreatment was much lower. Furthermore, for processes that use pentoses and hexoses separately, this pretreatment produces the most desirable pentoses liquor, with higher xylose concentration in the monomeric form.
Subject: Enzymatic Hydrolysis
Hexoses Fermentation
High Solids Concentration
Sugarcane Bagasse
Rights: embargo
Identifier DOI: 10.1016/j.biortech.2015.05.024
Date Issue: 2015
Appears in Collections:Unicamp - Artigos e Outros Documentos

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