Improving butylhydroxytoluene activity with alternative secondary antioxidants: high synergistic effect in stabilizing biodiesel/diesel fuel blends in the presence of pro-oxidative metal

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dc.creatorAna Carolina Roveda
dc.creatorIvan Pires de Oliveira
dc.creatorAnderson Rodrigues Lima Caires
dc.creatorDaniel Rinaldo
dc.creatorValdir Souza Ferreira
dc.creatorMagno Aparecido Gonçalves Trindade
dc.date.accessioned2023-10-16T21:21:52Z
dc.date.accessioned2025-09-09T00:48:22Z
dc.date.available2023-10-16T21:21:52Z
dc.date.issued2022
dc.identifier.issn0926-6690
dc.identifier.urihttps://hdl.handle.net/1843/59485
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofIndustrial Crops and Products
dc.rightsAcesso Restrito
dc.subjectAntioxidantes
dc.subjectBiodiesel
dc.subjectOxidação
dc.subject.otherMultifunctional additives
dc.subject.otherSynergism
dc.subject.otherBiofuel additive
dc.subject.otherThermodegradation
dc.subject.otherStabilization
dc.titleImproving butylhydroxytoluene activity with alternative secondary antioxidants: high synergistic effect in stabilizing biodiesel/diesel fuel blends in the presence of pro-oxidative metal
dc.typeArtigo de periódico
local.citation.epage11
local.citation.spage1
local.citation.volume178
local.description.resumoWe used butylhydroxytoluene (BHT) combined with citric acid (CA), ascorbic acid (AA), and alizarin (ALZ) to form multifunctional additives, which improves BHT activity and even lowers its concentration by half. As a result, high synergistic effect was observed against the accelerated oxidation process of all blends (biodiesel/ diesel) with high content of biodiesel when submitted to thermal degradation as well as the presence/absence of pro-oxidative metals. We provide a mechanism in which ALZ is responsible for BHT regeneration because ALZ is able to donate two hydrogens from its hydroxyl groups to obtain a diketone that can subsequently be complexed with metal ions. This finding is highlighted by the ability of the multifunctional additives—when comparing with the addition of only BHT in concentration enough to achieve the same stabilizing effect—to preserve biodiesel quality during long-term storage even in the presence of pro-oxidative metal. Finally, our study demonstrates that the final cost of biodiesel could be lowered in a scalable production due to the low concentration of additives required to maintain its quality as per specifications.
local.publisher.countryBrasil
local.publisher.departmentICA - INSTITUTO DE CIÊNCIAS AGRÁRIAS
local.publisher.initialsUFMG
local.url.externahttps://doi.org/10.1016/j.indcrop.2022.114558

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