LCA case study: comparison between independent and coproduction pathways for the production of ethyl and n-butyl acetates

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dc.contributor.authorBories, Cecile
dc.contributor.authorGuzman Barrera, Nydia Ileana
dc.contributor.authorPeydecastaing, Jerome
dc.contributor.authorEtxeberria, Idoia
dc.contributor.authorVedrenne, Emeline
dc.contributor.authorGarcia, Carlos Vaca
dc.contributor.authorThiebaud-Roux, Sophie
dc.contributor.authorSablayrolles, Caroline
dc.contributor.institutionBIOECONOMÍA Y CO2
dc.date.issued2018-02-01
dc.descriptionPublisher Copyright: © 2017, Springer-Verlag Berlin Heidelberg.
dc.description.abstractPurpose: The production of ethyl acetate and n-butyl acetate was investigated through two different pathways: either by independent reactions or by coproduction. In the coproduction pathway, the n-butyl acetate was produced by reusing the by-products of the synthesis of ethyl acetate. This study provides a comparison of the environmental impacts of these two pathways using a life cycle assessment (LCA). A discussion about the use of LCA on chemicals and its challenges was also developed. Methods: Ethyl acetate and n-butyl acetate were synthesized with maximum respect to the principles of green chemistry (use of heterogeneous catalyst, energy savings, minimum steps). An innovative pathway was developed to avoid waste production, by reusing all the by-products of syntheses. After characterizing the feasibility of using these solvents in paint formulations, their potential impacts on the environment were evaluated through a cradle to gate analysis, up to the synthesis at laboratory scale. Most of the foreground data were directly collected with experimental trials. The background data that were not available in the Ecoinvent 3.1 database were estimated thanks to literature or proxys. Evaluations were then performed on the SimaPro 8.1.1 LCA software, using a derivative of ILCD 2011 1.05 as life cycle impact assessment methodology. Results and discussion: The coproduction of both acetates led to the synthesis of purified ethyl acetate (purity of 92.1% w/w) and n-butyl acetate (purity of 97.1% w/w), after distillation. These results were quite similar to those obtained when independent syntheses were carried out. On an environmental point of view, it was found that the reagents preparation was always the step of the process responsible of the majority of the environmental impacts. The comparison between independent syntheses and coproduction showed that recycling the acetic acid produced during the first esterification (ethyl acetate from ethanol and acetic anhydride) led to a decrease of the impacts from 5 to 23% for all the impact categories. Conclusions: This innovative coproduction of ethyl and n-butyl acetates led to interesting results from both a technical and environmental perspective, with a clear reduction of the environmental impacts. In a context of sustainable chemistry, this appears to be a very interesting way of production. Concerning the LCA of chemicals, a lot of work is still needed in order to improve the accuracy and the reliability of the assessment.en
dc.description.sponsorshipECOBIOFOR has received funding from the European Union’s Seventh Framework Programme for research, technological development, and demonstration (FP7/2007-2013) under Grant Agreement No. [605215].
dc.description.statusPeer reviewed
dc.format.extent16
dc.identifier.citationBories , C , Guzman Barrera , N I , Peydecastaing , J , Etxeberria , I , Vedrenne , E , Garcia , C V , Thiebaud-Roux , S & Sablayrolles , C 2018 , ' LCA case study : comparison between independent and coproduction pathways for the production of ethyl and n-butyl acetates ' , International Journal of Life Cycle Assessment , vol. 23 , no. 2 , pp. 251-266 . https://doi.org/10.1007/s11367-017-1317-8
dc.identifier.doi10.1007/s11367-017-1317-8
dc.identifier.issn0948-3349
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85017449203&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofInternational Journal of Life Cycle Assessment
dc.relation.projectIDSeventh Framework Programme, FP7, 605215-FP7/2007-2013
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subject.keywordsCoproduction
dc.subject.keywordsEsterification
dc.subject.keywordsEthanol
dc.subject.keywordsGreen chemistry
dc.subject.keywordsLife cycle assessment
dc.subject.keywordsSustainability
dc.subject.keywordsn-Butanol
dc.subject.keywordsGeneral Environmental Science
dc.subject.keywordsSDG 7 - Affordable and Clean Energy
dc.subject.keywordsSDG 12 - Responsible Consumption and Production
dc.subject.keywordsSDG 9 - Industry, Innovation, and Infrastructure
dc.titleLCA case study: comparison between independent and coproduction pathways for the production of ethyl and n-butyl acetatesen
dc.typejournal article
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