Life cycle assessment of microbial 2,3-butanediol production from brewer’s spent grain modeled on pinch technology

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dc.contributor.authorTiwari, Bikash Ranjan
dc.contributor.authorBhar, Rajarshi
dc.contributor.authorDubey, Brajesh Kumar
dc.contributor.authorMaity, Sunil K.
dc.contributor.authorBrar, Satinder Kaur
dc.contributor.authorKumar, Gopalakrishnan
dc.contributor.authorKumar, Vinod
dc.date.accessioned2023-06-15T09:34:24Z
dc.date.available2023-06-15T09:34:24Z
dc.date.issued2023-05-22
dc.description.abstractMicrobial production of 2,3-butanediol (BDO) has received considerable attention as a promising alternate to fossil-derived BDO. In our previous work, BDO concentration >100 g/L was accumulated using brewer’s spent grain (BSG) via microbial routes which was followed by techno-economic analysis of the bioprocess. In the present work, a life cycle assessment (LCA) was conducted for BDO production from the fermentation of BSG to identify the associated environmental impacts. The LCA was based on an industrial-scale biorefinery processing of 100 metric tons BSG per day modeled using ASPEN plus integrated with pinch technology, a tool for achieving maximum thermal efficiency and heat recovery from the process. For the cradle-to-gate LCA, the functional unit of 1 kg of BDO production was selected. One-hundred-year global warming potential of 7.25 kg CO2/kg BDO was estimated while including biogenic carbon emission. The pretreatment stage followed by the cultivation and fermentation contributed to the maximum adverse impacts. Sensitivity analysis revealed that a reduction in electricity consumption and transportation and an increase in BDO yield could reduce the adverse impacts associated with microbial BDO production.en_UK
dc.identifier.citationTiwari BR, Bhar R, Dubey BK, et al., (2023) Life cycle assessment of microbial 2,3-butanediol production from brewer’s spent grain modeled on pinch technology. ACS Sustainable Chemistry and Engineering, Volume 11, Issue 22, June 2023, pp. 8271-8280en_UK
dc.identifier.issn2168-0485
dc.identifier.urihttps://doi.org/10.1021/acssuschemeng.3c00616
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/19778
dc.language.isoenen_UK
dc.publisherAmerican Chemical Societyen_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subject2,3-Butanediolen_UK
dc.subjectbrewer’s spent grainen_UK
dc.subjectglobal warmingen_UK
dc.subjectlife cycle assessmenten_UK
dc.subjectsensitivity analysisen_UK
dc.subjectbiorefineryen_UK
dc.titleLife cycle assessment of microbial 2,3-butanediol production from brewer’s spent grain modeled on pinch technologyen_UK
dc.typeArticleen_UK

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