OPTIMIZATION OF SOLID-LIQUID EXTRACTION OF ETHANOL OBTAINED BY SOLID-STATE FERMENTATION OF SURGARCANE BAGASSE

OPTIMIZATION OF SOLID-LIQUID EXTRACTION OF ETHANOL OBTAINED BY SOLID-STATE FERMENTATION OF SURGARCANE BAGASSE

CANABARRO, N. I.; ALESSIO, C.; SOARES, J. F.; CORRÊA, J. V. S.; SUSIN, N.; PRIAMO, W.; MAZUTTI, M. A.

Artigo:

Solid-state fermentation has arrived as an alternative to reduce the amount of waste water in ethanol fermentation. However, the recovery of ethanol from solid medium should be investigated, since depending of experimental condition used in the extraction, significant difference in the results can be obtained. In this work was investigated the influence of temperature (30-50°C), solid to liquid ratio (0.1-0.4 wt%) and orbital agitation (50-180 rpm) in the recovery of ethanol from sugarcane bagasse at different fermentation conditions of moisture content (50-80%) and ethanol amount (5-20 wt%). The highest recovering efficiency was 99,8% at 30°C, initial ethanol amount of 10 wt%, orbital agitation of 100 rpm and moisture content of 60%. The main contribution of this work was to demonstrate that the amount of water used in the extraction is lesser than that used in traditional liquid fermentation, making possible to obtain a more concentrated broth, saving with water treatment and energy.

Solid-state fermentation has arrived as an alternative to reduce the amount of waste water in ethanol fermentation. However, the recovery of ethanol from solid medium should be investigated, since depending of experimental condition used in the extraction, significant difference in the results can be obtained. In this work was investigated the influence of temperature (30-50°C), solid to liquid ratio (0.1-0.4 wt%) and orbital agitation (50-180 rpm) in the recovery of ethanol from sugarcane bagasse at different fermentation conditions of moisture content (50-80%) and ethanol amount (5-20 wt%). The highest recovering efficiency was 99,8% at 30°C, initial ethanol amount of 10 wt%, orbital agitation of 100 rpm and moisture content of 60%. The main contribution of this work was to demonstrate that the amount of water used in the extraction is lesser than that used in traditional liquid fermentation, making possible to obtain a more concentrated broth, saving with water treatment and energy.

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DOI: 10.5151/chemeng-cobeq2014-2013-16406-175259

Referências bibliográficas

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Como citar:

CANABARRO, N. I.; ALESSIO, C.; SOARES, J. F.; CORRÊA, J. V. S.; SUSIN, N.; PRIAMO, W.; MAZUTTI, M. A.; "OPTIMIZATION OF SOLID-LIQUID EXTRACTION OF ETHANOL OBTAINED BY SOLID-STATE FERMENTATION OF SURGARCANE BAGASSE", p-2779-2785. In: Anais do XX Congresso Brasileiro de Engenharia Química - COBEQ 2014 [= Blucher Chemical Engineering Proceedings, v.1, n.2]. São Paulo: Blucher, 2015.
ISSN 23591757, DOI 10.5151/chemeng-cobeq2014-2013-16406-175259