Fractionation of sugarcane bagasse using hydrothermal and advanced oxidative pretreatments for bioethanol and biogas production in lignocellulose biorefineries.

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorBittencourt, Gustavo Amaro-
Autor(es): dc.creatorBarreto, Elisa da Silva-
Autor(es): dc.creatorBrandão, Rogélio Lopes-
Autor(es): dc.creatorBaeta, Bruno Eduardo Lobo-
Autor(es): dc.creatorGurgel, Leandro Vinícius Alves-
Data de aceite: dc.date.accessioned2025-08-21T15:47:27Z-
Data de disponibilização: dc.date.available2025-08-21T15:47:27Z-
Data de envio: dc.date.issued2020-05-22-
Data de envio: dc.date.issued2020-05-22-
Data de envio: dc.date.issued2019-
Fonte completa do material: dc.identifierhttp://www.repositorio.ufop.br/handle/123456789/12248-
Fonte completa do material: dc.identifierhttps://www.sciencedirect.com/science/article/pii/S0960852419311939-
Fonte completa do material: dc.identifierhttps://doi.org/10.1016/j.biortech.2019.121963-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1024167-
Descrição: dc.descriptionThe fractionation of sugarcane bagasse (SB) by hydrothermal pretreatment (HP, autohydrolysis) followed by alkaline extraction (AE) and advanced oxidative pretreatment (AOP) for production of second-generation ethanol and biogas was investigated. The AOP of SB was optimized using a Doehlert design, varying the applied H2O2 load, liquid-to-solid ratio (LSR), and time. The responses evaluated were yield (Y), residual cellulose (RC), delignification (DE), and enzymatic conversion (EC). The AE of SB pretreated by HP led to 61.8% DE (using 0.2 mol L−1 NaOH). This high lignin removal enabled substantial savings of H2O2 in the AOP. The optimized AOP conditions led to 78% Y, 82.2% RC, 42.7% DE, and 88.9% EC (overall glucose yield of 60.9%). Fermentation of the enzymatic hydrolysate with Saccharomyces cerevisiae yielded 190.8 Lethanol tonSB−1. Biogas production by anaerobic digestion of residual liquid streams of the pretreatment steps yielded 27.46 NLCH4 kgSB−1. An energy balance was estimated for the SB fractionation.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Direitos: dc.rightsrestrito-
Palavras-chave: dc.subjectAdvanced oxidative pretreatment-
Palavras-chave: dc.subjectSecond - generation ethanol-
Palavras-chave: dc.subjectFermentation-
Palavras-chave: dc.subjectBiogas-
Título: dc.titleFractionation of sugarcane bagasse using hydrothermal and advanced oxidative pretreatments for bioethanol and biogas production in lignocellulose biorefineries.-
Aparece nas coleções:Repositório Institucional - UFOP

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