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Techno-Economic Evaluation for Ethanol Production from Residual Cashew Apple Using a Flocculant Yeast.

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Title: Techno-Economic Evaluation for Ethanol Production from Residual Cashew Apple Using a Flocculant Yeast.
Authors: Pinheiro, Álvaro Daniel Teles1 (NURSE), De Oliveira, Fernando Porfirio Soares2 (NURSE), da Rocha Ponte, Vitor Moreira3 (AUTHOR), Rocha, Maria Valderez Ponte3 (AUTHOR), Gonçalves, Luciana Rocha Barros3 (AUTHOR) lrg@ufc.br
Source: BioEnergy Research. Mar2024, Vol. 17 Issue 1, p320-333. 14p.
Subjects: Cashew nuts, Ethanol, Sugarcane, Economic impact analysis, Sorgo, Apple juice
Abstract: Biofuels, especially ethanol, have gained immense popularity in the global energy sector, driven by a significant increase in demand. Ethanol production using agroindustrial residues reduces costs and can provide a destination for these residues that are generally wasted. In this context, the cashew apple emerges as an attractive and unconventional feedstock for bioethanol production. Although the technology to obtain ethanol from cashew apple juice is present in several studies, the key elements that determine its economic feasibility have never been defined. Then, this study aimed to present the first techno-economic assessment of ethanol production from cashew apple juice. Two industrial full-detailed scenarios were proposed based on the application of the obtained ethanol, where in scenario I, 2.1 × 106 liters of ethanol are produced for combustion purposes (94% w/w), while in scenario II, 2.8 × 106 liters of ethanol are produced for antiseptic purposes (70% w/w). The yields calculated in the proposed scenarios I and II were 66.5 L/ton and 88.9 L/ton, respectively, values comparable with those found in the literature using sugar cane and sweet sorghum as feedstocks. Then, the production of ethanol from cashew apple juice proved technically feasible. Economic sensibility analysis showed that both proposed scenarios are economically viable, as long as the cashew apple acquisition cost is at most 17.2 US$/ton for the scenario I and 28.1 US$/ton for scenario II. The raw material cost was the most crucial parameter to impact the economic analysis. In conclusion, the proposed biorefinery returned promising results, and it can consolidate a new raw material for ethanol production, provided that idle capacity is reduced and heat generation from cashew apple bagasse is optimized. [ABSTRACT FROM AUTHOR]
Copyright of BioEnergy Research is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Techno-Economic Evaluation for Ethanol Production from Residual Cashew Apple Using a Flocculant Yeast.
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  Data: <searchLink fieldCode="JN" term="%22BioEnergy+Research%22">BioEnergy Research</searchLink>. Mar2024, Vol. 17 Issue 1, p320-333. 14p.
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  Data: <searchLink fieldCode="DE" term="%22Cashew+nuts%22">Cashew nuts</searchLink><br /><searchLink fieldCode="DE" term="%22Ethanol%22">Ethanol</searchLink><br /><searchLink fieldCode="DE" term="%22Sugarcane%22">Sugarcane</searchLink><br /><searchLink fieldCode="DE" term="%22Economic+impact+analysis%22">Economic impact analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Sorgo%22">Sorgo</searchLink><br /><searchLink fieldCode="DE" term="%22Apple+juice%22">Apple juice</searchLink>
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  Data: Biofuels, especially ethanol, have gained immense popularity in the global energy sector, driven by a significant increase in demand. Ethanol production using agroindustrial residues reduces costs and can provide a destination for these residues that are generally wasted. In this context, the cashew apple emerges as an attractive and unconventional feedstock for bioethanol production. Although the technology to obtain ethanol from cashew apple juice is present in several studies, the key elements that determine its economic feasibility have never been defined. Then, this study aimed to present the first techno-economic assessment of ethanol production from cashew apple juice. Two industrial full-detailed scenarios were proposed based on the application of the obtained ethanol, where in scenario I, 2.1 × 106 liters of ethanol are produced for combustion purposes (94% w/w), while in scenario II, 2.8 × 106 liters of ethanol are produced for antiseptic purposes (70% w/w). The yields calculated in the proposed scenarios I and II were 66.5 L/ton and 88.9 L/ton, respectively, values comparable with those found in the literature using sugar cane and sweet sorghum as feedstocks. Then, the production of ethanol from cashew apple juice proved technically feasible. Economic sensibility analysis showed that both proposed scenarios are economically viable, as long as the cashew apple acquisition cost is at most 17.2 US$/ton for the scenario I and 28.1 US$/ton for scenario II. The raw material cost was the most crucial parameter to impact the economic analysis. In conclusion, the proposed biorefinery returned promising results, and it can consolidate a new raw material for ethanol production, provided that idle capacity is reduced and heat generation from cashew apple bagasse is optimized. [ABSTRACT FROM AUTHOR]
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  Label:
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  Data: <i>Copyright of BioEnergy Research is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Type: general
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      – SubjectFull: Apple juice
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      – TitleFull: Techno-Economic Evaluation for Ethanol Production from Residual Cashew Apple Using a Flocculant Yeast.
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              Text: Mar2024
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