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Ethanol yield calculations in biorefineries
Pamela Magalí Bermejo1, Alberto Badino2, Luciano Zamberlan3
1School of Food Engineering, University of Campinas, Rua Monteiro Lobato 80, 13083-862 Campinas, SP, Brazil.
Calculating ethanol yield on sugar during fermentation requires careful consideration. Different methods yield varying results, potentially overestimating efficiency in industrial settings like Brazilian sugarcane biorefineries.
Area of Science:
- Biotechnology
- Chemical Engineering
- Industrial Microbiology
Background:
- Ethanol yield on sugar is a critical parameter in alcoholic fermentation for biofuels.
- Current industrial calculation methods yield dissimilar results, leading to potential overestimations.
- Academic researchers often lack detailed insights into industrial ethanol yield calculations.
Purpose of the Study:
- To address the diverse interpretations of ethanol yield on sugar in academic and industrial settings.
- To highlight discrepancies in ethanol yield calculations, particularly in Brazilian sugarcane biorefineries.
- To foster better understanding and interaction between academic and industrial fermentation professionals.
Main Methods:
- Comparative analysis of ethanol yield calculation methodologies.
- Review of industrial practices in Brazilian sugarcane biorefineries.
- Discussion based on the methodology proposed by Pereira et al. (2018).
Main Results:
- Evidence suggests consistent overestimation of ethanol yield in Brazilian sugarcane biorefineries.
- Discrepancies between academic and industrial calculation methods are significant.
- A need for standardized and accurate ethanol yield calculation is evident.
Conclusions:
- Accurate ethanol yield calculation is crucial for optimizing industrial bioprocesses.
- Demystifying calculation methods can bridge the gap between academia and industry.
- Standardized approaches are necessary to ensure reliable efficiency assessments in fuel ethanol production.
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