Integrated biorefinery for bioethanol and succinic acid co-production from bread waste: techno-economic feasibility and life cycle assessment

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dc.contributor.authorHafyan, Rendra Hakim
dc.contributor.authorMohanarajan, Jasmithaa
dc.contributor.authorUppal, Manaal
dc.contributor.authorKumar, Vinod
dc.contributor.authorNarisetty, Vivek
dc.contributor.authorMaity, Sunil K.
dc.contributor.authorSadhukhan, Jhuma
dc.contributor.authorGadkari, Siddharth
dc.date.accessioned2024-01-23T10:26:23Z
dc.date.available2024-01-23T10:26:23Z
dc.date.issued2024-01-06
dc.description.abstractIn this study, an advanced decarbonization approach is presented for an integrated biorefinery that co-produces bioethanol and succinic acid (SA) from bread waste (BW). The economic viability and the environmental performance of the proposed BW processing biorefinery is evaluated. Four distinctive scenarios were designed and analysed, focusing on a plant capacity that processes 100 metric tons (MT) of BW daily. These scenarios encompass: (1) the fermentation of BW into bioethanol, paired with heat and electricity co-generation from stillage, (2) an energy-optimized integration of Scenario 1 using pinch technology, (3) the co-production of bioethanol and SA by exclusively utilizing fermentative CO2, and (4) an advanced version of Scenario 3 that incorporates carbon capture (CC) from flue gas, amplifying SA production. Scenarios 3 and 4 were found to be economically more attractive with better environmental performance due to the co-production of SA. Particularly, Scenario 4 emerged as superior, showcasing a payback period of 2.2 years, a robust internal rate of return (33% after tax), a return on investment of 32%, and a remarkable net present value of 163 M$. Sensitivity analysis underscored the decisive influence of fixed capital investment and product pricing on economic outcomes. In terms of environmental impact, Scenario 4 outperformed other scenarios across all impact categories, where global warming potential, abiotic depletion (fossil fuels), and human toxicity potential were the most influential impact categories (−0.344 kg CO2-eq, −16.2 MJ, and −0.3 kg 1,4-dichlorobenzene (DB)-eq, respectively). Evidently, the integration of CC unit to flue gas in Scenario 4 substantially enhances both economic returns and environmental sustainability of the biorefinery.en_UK
dc.description.sponsorshipNERCen_UK
dc.identifier.citationHafyan RH, Mohanarajan J, Uppal M, et al., (2024) Integrated biorefinery for bioethanol and succinic acid co-production from bread waste: techno-economic feasibility and life cycle assessment. Energy Conversion and Management, Volume 301, February 2024, Article Number 118033en_UK
dc.identifier.eissn1879-2227
dc.identifier.issn0196-8904
dc.identifier.urihttps://doi.org/10.1016/j.enconman.2023.118033
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/20704
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectBread waste valorisationen_UK
dc.subjectTechno-economic analysisen_UK
dc.subjectLife cycle assessmenten_UK
dc.subjectCarbon captureen_UK
dc.subjectBioethanolen_UK
dc.subjectSuccinic aciden_UK
dc.titleIntegrated biorefinery for bioethanol and succinic acid co-production from bread waste: techno-economic feasibility and life cycle assessmenten_UK
dc.typeArticleen_UK
dcterms.dateAccepted2023-12-21

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