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Produção de hidrogênio a partir do bagaço de cana-de-açúcar

Authors: Jakelline Nunes Marques Torres; Dayana de Gusmão Coêlho; Eduardo Lucena Cavalcante de Amorim;

Produção de hidrogênio a partir do bagaço de cana-de-açúcar

Abstract

Este trabalho estudou parâmetros envolvidos na produção fermentativa do H2 a partir do bagaço de cana- de-açúcar. Primeiramente estudaram-se os fatores: massa de substrato (10, 20, e 30 g/L) e porcentagem de inóculo (10, 20 e 30%). Fixando o melhor resultado desses fatores, estudaram-se os fatores: tempo de aquecimento na pré-hidrólise (0, 30 e 60 min) e pH inicial (5,6 e 7). Os resultados mostraram que as melhores condições avaliadas foram: massa de substrato de 10g/L, 10% de inóculo, pH inicial de 6 e tempo de aquecimento na pré-hidrólise de 30 min, representado pelo ensaio 567 com uma produção específica de hidrogênio de 2,59 mmolH2/gSSVdia. Os principais metabólitos solúveis produzidos foram: ácido acético (478– 1374,2 mg/L), predominante em todos os reatores, ácido propiônico (56,92–59,45 mg/L), etanol (26,46–79,13 mg/L) e metanol (33,71–79,88 mg/L), o que indica que a rota fermentativa utilizada pelos microrganismos para a produção de hidrogênio foi a do ácido acético. Palavras-chave: Bagaço de cana-de-açúcar. Inóculo. Pré-Hidrólise. pH. Fermentação. Produção Específica de Hidrogênio. Metabólitos.

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Keywords

ph, metabólitos, Environmental engineering, pré-hidrólise, TA170-171, Environmental technology. Sanitary engineering, Environmental sciences, bagaço de cana-de-açúcar, produção específica de hidrogênio, GE1-350, inóculo, TD1-1066, fermentação

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold