Influence of the storage on the thermo-oxidative stability of methyl and ethyl esters by PDSC

Biodiesel oxidation is a complex process widely influenced by the chemical composition of the biofuel and storage conditions. Several oxidation products can be formed from these processes, depending on type and amount of the unsaturated fatty acid esters. In this work, fatty acid methyl and ethyl e...

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Principais autores: Bicudo, Tatiana de Campos, Candeia, R. A., Sinfrônio, F. S. M., Queiroz, N., Barros Filho, A. K. D., Soledade, Luiz Edmundo Bastos, Santos, I. M. G., Souza, A. L., Souza, A. G.
Formato: article
Idioma:English
Publicado em: Springer
Assuntos:
Soybean biodiesel
Storage
Accelerated aging
Oxidative stability
PDSC
Endereço do item:https://repositorio.ufrn.br/handle/123456789/30357
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spelling ri-123456789-303572021-04-14T20:38:45Z Influence of the storage on the thermo-oxidative stability of methyl and ethyl esters by PDSC Bicudo, Tatiana de Campos Candeia, R. A. Sinfrônio, F. S. M. Queiroz, N. Barros Filho, A. K. D. Soledade, Luiz Edmundo Bastos Santos, I. M. G. Souza, A. L. Souza, A. G. Soybean biodiesel Storage Accelerated aging Oxidative stability PDSC Biodiesel oxidation is a complex process widely influenced by the chemical composition of the biofuel and storage conditions. Several oxidation products can be formed from these processes, depending on type and amount of the unsaturated fatty acid esters. In this work, fatty acid methyl and ethyl esters were obtained by basecatalyzed transesterification of soybean oil and physicochemically characterized according to standards from ASTM, EN, and ABNT. The thermal and oxidative stabilities of biodiesel samples were investigated during the storage process by pressure differential scanning calorimetry (PDSC) and by viscosity measurements. Absolute viscosities of biodiesels after accelerated aging were also determined. The viscosity increased as the aging temperature and time were raised. The results showed that oxidation induction can occur during storage, decreasing the biodiesel stability. PDSC analysis showed that during storage under climate simulation the values of high-pressure oxidative induction times (HPOIT) were reduced for both FAEE and FAME 2020-10-09T18:54:52Z 2020-10-09T18:54:52Z 2011-02-14 article CANDEIA, R. A.; SINFRÔNIO, F. S. M.; BICUDO, T. C.; QUEIROZ, N.; BARROS FILHO, A. K. D.; SOLEDADE, L. E. B.; SANTOS, I. M. G.; SOUZA, A. L.; SOUZA, A. G.. Influence of the storage on the thermo-oxidative stability of methyl and ethyl esters by PDSC. Journal Of Thermal Analysis And Calorimetry, [S.L.], v. 106, n. 2, p. 581-586, 14 fev. 2011. Disponível em: https://link.springer.com/article/10.1007%2Fs10973-011-1287-1. Acesso em: 08 set. 2020. http://dx.doi.org/10.1007/s10973-011-1287-1 1572-8943 https://repositorio.ufrn.br/handle/123456789/30357 10.1007/s10973-011-1287-1 en Attribution-NonCommercial 3.0 Brazil http://creativecommons.org/licenses/by-nc/3.0/br/ application/pdf Springer
institution Repositório Institucional
collection RI - UFRN
language English
topic Soybean biodiesel
Storage
Accelerated aging
Oxidative stability
PDSC
spellingShingle Soybean biodiesel
Storage
Accelerated aging
Oxidative stability
PDSC
Bicudo, Tatiana de Campos
Candeia, R. A.
Sinfrônio, F. S. M.
Queiroz, N.
Barros Filho, A. K. D.
Soledade, Luiz Edmundo Bastos
Santos, I. M. G.
Souza, A. L.
Souza, A. G.
Influence of the storage on the thermo-oxidative stability of methyl and ethyl esters by PDSC
description Biodiesel oxidation is a complex process widely influenced by the chemical composition of the biofuel and storage conditions. Several oxidation products can be formed from these processes, depending on type and amount of the unsaturated fatty acid esters. In this work, fatty acid methyl and ethyl esters were obtained by basecatalyzed transesterification of soybean oil and physicochemically characterized according to standards from ASTM, EN, and ABNT. The thermal and oxidative stabilities of biodiesel samples were investigated during the storage process by pressure differential scanning calorimetry (PDSC) and by viscosity measurements. Absolute viscosities of biodiesels after accelerated aging were also determined. The viscosity increased as the aging temperature and time were raised. The results showed that oxidation induction can occur during storage, decreasing the biodiesel stability. PDSC analysis showed that during storage under climate simulation the values of high-pressure oxidative induction times (HPOIT) were reduced for both FAEE and FAME
format article
author Bicudo, Tatiana de Campos
Candeia, R. A.
Sinfrônio, F. S. M.
Queiroz, N.
Barros Filho, A. K. D.
Soledade, Luiz Edmundo Bastos
Santos, I. M. G.
Souza, A. L.
Souza, A. G.
author_facet Bicudo, Tatiana de Campos
Candeia, R. A.
Sinfrônio, F. S. M.
Queiroz, N.
Barros Filho, A. K. D.
Soledade, Luiz Edmundo Bastos
Santos, I. M. G.
Souza, A. L.
Souza, A. G.
author_sort Bicudo, Tatiana de Campos
title Influence of the storage on the thermo-oxidative stability of methyl and ethyl esters by PDSC
title_short Influence of the storage on the thermo-oxidative stability of methyl and ethyl esters by PDSC
title_full Influence of the storage on the thermo-oxidative stability of methyl and ethyl esters by PDSC
title_fullStr Influence of the storage on the thermo-oxidative stability of methyl and ethyl esters by PDSC
title_full_unstemmed Influence of the storage on the thermo-oxidative stability of methyl and ethyl esters by PDSC
title_sort influence of the storage on the thermo-oxidative stability of methyl and ethyl esters by pdsc
publisher Springer
publishDate 2020
url https://repositorio.ufrn.br/handle/123456789/30357
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