Effect of temperature on sugarcane ethanol fermentation : Kinetic modeling and validation under very-high-gravity fermentation conditions
Elmer Ccopa Rivera, Celina K. Yamakawa, Marcelo B. W. Saad, Daniel I. P. Atala, Wesley B. Ambrosio, Antonio Bonomi, Jonas Nolasco Junior, Carlos E. V. Rossell
ARTIGO
Inglês
In this work, a mechanistic model is developed to simulate the effect of temperature on Saccharomyces cerevisiae growth and ethanol production of batch fermentations. A wide temperature range is used to estimate the temperature-dependent kinetic parameters of the reaction kinetics. Because multi...
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In this work, a mechanistic model is developed to simulate the effect of temperature on Saccharomyces cerevisiae growth and ethanol production of batch fermentations. A wide temperature range is used to estimate the temperature-dependent kinetic parameters of the reaction kinetics. Because multi parameter estimation problems are complex, an optimization-based procedure is used to determine the optimum parameter values. The calculated reaction rates are used to construct a mechanistic fed-batch model. Experimental data from several cycles of very-high-gravity (VHG) ethanol fermentation from sugarcane are used to validate the model. Acceptable predictions are achieved in terms of the residual standard deviation (RSD). In addition, a suitable fermentation temperature profile, nutrient supplementation and micro-aeration during cell treatment are essential factors to obtain a yield of up to 90%, with a productivity of 10.2 g/L h and an ethanol concentration of 120 g/L.
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FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESP
2016/01785-0
Fechado
Effect of temperature on sugarcane ethanol fermentation : Kinetic modeling and validation under very-high-gravity fermentation conditions
Elmer Ccopa Rivera, Celina K. Yamakawa, Marcelo B. W. Saad, Daniel I. P. Atala, Wesley B. Ambrosio, Antonio Bonomi, Jonas Nolasco Junior, Carlos E. V. Rossell
Effect of temperature on sugarcane ethanol fermentation : Kinetic modeling and validation under very-high-gravity fermentation conditions
Elmer Ccopa Rivera, Celina K. Yamakawa, Marcelo B. W. Saad, Daniel I. P. Atala, Wesley B. Ambrosio, Antonio Bonomi, Jonas Nolasco Junior, Carlos E. V. Rossell
Fontes
Biochemical engineering journal (Fonte avulsa) |