Improving bioethanol production - Comparison between extractive and low temperature fermentation

dc.creatorDias, MOS
dc.creatorJunqueira, TL
dc.creatorJesus, CDF
dc.creatorRossell, CEV
dc.creatorMaciel, R
dc.creatorBonomi, A
dc.date2012
dc.dateOCT
dc.date2014-07-30T18:01:52Z
dc.date2015-11-26T16:51:36Z
dc.date2014-07-30T18:01:52Z
dc.date2015-11-26T16:51:36Z
dc.date.accessioned2018-03-28T23:38:24Z
dc.date.available2018-03-28T23:38:24Z
dc.identifierApplied Energy. Elsevier Sci Ltd, v. 98, n. 548, n. 555, 2012.
dc.identifier0306-2619
dc.identifierWOS:000306889200057
dc.identifier10.1016/j.apenergy.2012.04.030
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/69279
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/69279
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1276030
dc.descriptionOne of the key issues that must be addressed in the biofuel production based on sugarcane industry is the energy consumption of the process. Process energy demand has direct impact on the amount of lignocellulosic material available for use as feedstock for second generation ethanol production. A significant fraction of the energy consumption in bioethanol production occurs in the purification step, since conventional fermentation systems employed in the industry require low substrate concentration and, consequently, produce wine of low (around 8.5 degrees GL) ethanol content that must be distilled in order to meet product specifications. In this study alternatives to the conventional fermentation processes employed in the industry (low temperature fermentation and vacuum extractive fermentation) were assessed, in the context of a large scale sugarcane autonomous distillery, through computer simulation. Electricity consumption and lignocellulosic material surplus on each case were evaluated. It is shown that the alternative fermentation processes allow a significant reduction on vinasse generation and increases ethanol production when compared with conventional fermentation, but increases electricity consumption (for the extractive fermentation) or steam consumption (for low temperature fermentation); when vinasse concentration is considered in the conventional process, steam consumption in the extractive fermentation is also significantly smaller. (c) 2012 Elsevier Ltd. All rights reserved.
dc.description98
dc.description548
dc.description555
dc.languageen
dc.publisherElsevier Sci Ltd
dc.publisherOxford
dc.publisherInglaterra
dc.relationApplied Energy
dc.relationAppl. Energy
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectEthanol
dc.subjectSugarcane
dc.subjectFermentation
dc.subjectSimulation
dc.subjectEthanol Fermentation
dc.subjectOptimization
dc.subjectImpact
dc.titleImproving bioethanol production - Comparison between extractive and low temperature fermentation
dc.typeArtículos de revistas


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