Life cycle assessment of a steam thermolysis process to recover carbon fibers from carbon fiber-reinforced polymer waste

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dc.contributor.authorNunes, Andréa Oliveira
dc.contributor.authorViana, Luciano Rodrigues
dc.contributor.authorGuineheuc, Pierre-Marie
dc.contributor.authorMoris, Virgínia Aparecida da Silva
dc.contributor.authorPaiva, Jane Maria Faulstich
dc.contributor.authorBarna, Radu
dc.contributor.authorSoudais, Yannick
dc.date.accessioned2021-05-07T13:28:07Z
dc.date.available2021-05-07T13:28:07Z
dc.date.issued2017-11-03
dc.description.resumoPurpose Carbon fibers have been widely used in composite materials, such as carbon fiber-reinforced polymer (CFRP). Therefore, a considerable amount of CFRP waste has been generated. Different recycling technologies have been proposed to treat the CFRP waste and recover carbon fibers for reuse in other applications. This study aims to perform a life cycle assessment (LCA) to evaluate the environmental impacts of recycling carbon fibers from CFRP waste by steam thermolysis, which is a recycling process developed in France. Methods The LCA is performed by comparing a scenario where the CFRP waste is recycled by steam-thermolysis with other where the CFRP waste is directly disposed in landfill and incineration. The functional unit set for this study is 2 kg of composite. The inventory analysis is established for the different phases of the two scenarios considered in the study, such as the manufacturing phase, the recycling phase, and the end-of-life phase. The input and output flows associated with each elementary process are standardized to the functional unit. The life cycle impact assessment (LCIA) is performed using the SimaPro software and the Ecoinvent 3 database by the implementation of the CML-IA baseline LCIA method and the ILCD 2011 midpoint LCIA method. Results and discussion Despite that the addition of recycling phase produces non-negligible environmental impacts, the impact assessment shows that, overall, the scenario with recycling is less impactful on the environment than the scenario without recycling. The recycling of CFRP waste reduces between 25 and 30% of the impacts and requires about 25% less energy. The two LCIA methods used, CML-IA baseline and ILCD 2011 midpoint, lead to similar results, allowing the verification of the robustness and reliability of the LCIA results. Conclusions The recycling of composite materials with recovery of carbon fibers brings evident advantages from an environmental point of view. Although this study presents some limitations, the LCA conducted allows the evaluation of potential environmental impacts of steam thermolysis recycling process in comparison with a scenario where the composites are directly sent to final disposal. The proposed approach can be scaled up to be used in other life cycle assessments, such as in industrial scales, and furthermore to compare the steam thermolysis to other recycling processespt_BR
dc.identifier.citationNUNES, Andréa Oliveira; VIANA, Luciano Rodrigues; GUINEHEUC, Pierre-Marie; MORIS, Virgínia Aparecida da Silva; PAIVA, Jane Maria Faulstich de; BARNA, Radu; SOUDAIS, Yannick. Life cycle assessment of a steam thermolysis process to recover carbon fibers from carbon fiber-reinforced polymer waste. The International Journal Of Life Cycle Assessment, [S.L.], v. 23, n. 9, p. 1825-1838, 3 nov. 2017. Disponível em: https://link.springer.com/article/10.1007%2Fs11367-017-1416-6. Acesso em: 07 maio 2021. http://dx.doi.org/10.1007/s11367-017-1416-6.pt_BR
dc.identifier.doi10.1007/s11367-017-1416-6
dc.identifier.urihttps://repositorio.ufrn.br/handle/123456789/32450
dc.languageenpt_BR
dc.publisherSpringerpt_BR
dc.rightsAttribution 3.0 Brazil*
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/br/*
dc.subjectCarbon fiber-reinforced polymerpt_BR
dc.subjectCompositept_BR
dc.subjectLife cycle assessmentpt_BR
dc.subjectRecyclingpt_BR
dc.subjectSteam thermolysispt_BR
dc.subjectThermal processpt_BR
dc.subjectWaste valorizationpt_BR
dc.titleLife cycle assessment of a steam thermolysis process to recover carbon fibers from carbon fiber-reinforced polymer wastept_BR
dc.typearticlept_BR

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