In-situ transesterification of Jatropha curcas L. seeds using homogeneous and heterogeneous basic catalysts

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Abstract

© 2018 Elsevier Ltd The in-situ or direct transesterification from non-edible Jatropha curcas L. (Jatropha) seeds is a suitable alternative to produce fatty acid methyl esters (FAME) in one-step. The FAME production was investigated in presence of homogeneous (NaOH) or heterogeneous (Na2ZrO3) catalysts. Parameters, such as catalyst concentration (between 1 and 10 wt%), reaction time, temperature and methanol/oil molar ratio were analysed. The maximum heterogeneous direct transesterification of FAME yield was 99.9% using 5 wt% of Na2ZrO3 at 65 °C and 8 h. Results showed that no solvent for oil extraction is required. The resulting FAME shows good purity and composition. Moreover, no water is required to purify the FAME. Compositional analysis of FAME indicated that linoleic (C18:2), oleic (C18:1) and palmitic (C16:0) methyl esters were the major components. In addition, the reusability of the catalyst was also investigated. The basic heterogeneous catalyst exhibited stability in the direct transesterification reactions with yields of >72.5% during five cycles. Finally, Green Metrics values were proposed as parameters to evaluate the FAME obtained in one-pot from seeds directly. The heterogeneous direct transesterification process resulted 55% greener as compared to conventional transesterification and 39.4% greener than homogenous direct transesterification. Heterogeneous direct transesterification is a promising alternative for more clean, efficient, scalable and cost-effective FAME production that has the potential to developing new technologies.
Original languageAmerican English
Pages (from-to)277-287
Number of pages248
JournalFuel
DOIs
StatePublished - 1 Jan 2019

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Transesterification
ester
Seed
Fatty acids
Esters
catalyst
Fatty Acids
fatty acid
seed
Catalysts
Oils
in situ
Reusability
Methanol
methanol
Water
oil

Cite this

@article{8f6c1ff391a445e8bb312fc5990047f9,
title = "In-situ transesterification of Jatropha curcas L. seeds using homogeneous and heterogeneous basic catalysts",
abstract = "{\circledC} 2018 Elsevier Ltd The in-situ or direct transesterification from non-edible Jatropha curcas L. (Jatropha) seeds is a suitable alternative to produce fatty acid methyl esters (FAME) in one-step. The FAME production was investigated in presence of homogeneous (NaOH) or heterogeneous (Na2ZrO3) catalysts. Parameters, such as catalyst concentration (between 1 and 10 wt{\%}), reaction time, temperature and methanol/oil molar ratio were analysed. The maximum heterogeneous direct transesterification of FAME yield was 99.9{\%} using 5 wt{\%} of Na2ZrO3 at 65 °C and 8 h. Results showed that no solvent for oil extraction is required. The resulting FAME shows good purity and composition. Moreover, no water is required to purify the FAME. Compositional analysis of FAME indicated that linoleic (C18:2), oleic (C18:1) and palmitic (C16:0) methyl esters were the major components. In addition, the reusability of the catalyst was also investigated. The basic heterogeneous catalyst exhibited stability in the direct transesterification reactions with yields of >72.5{\%} during five cycles. Finally, Green Metrics values were proposed as parameters to evaluate the FAME obtained in one-pot from seeds directly. The heterogeneous direct transesterification process resulted 55{\%} greener as compared to conventional transesterification and 39.4{\%} greener than homogenous direct transesterification. Heterogeneous direct transesterification is a promising alternative for more clean, efficient, scalable and cost-effective FAME production that has the potential to developing new technologies.",
author = "Araceli Mart{\'i}nez and Mijangos, {Gabriela E.} and Romero-Ibarra, {Issis C.} and Ra{\'u}l Hern{\'a}ndez-Altamirano and Mena-Cervantes, {Violeta Y.}",
year = "2019",
month = "1",
day = "1",
doi = "10.1016/j.fuel.2018.07.082",
language = "American English",
pages = "277--287",
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In-situ transesterification of Jatropha curcas L. seeds using homogeneous and heterogeneous basic catalysts. / Martínez, Araceli; Mijangos, Gabriela E.; Romero-Ibarra, Issis C.; Hernández-Altamirano, Raúl; Mena-Cervantes, Violeta Y.

In: Fuel, 01.01.2019, p. 277-287.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - In-situ transesterification of Jatropha curcas L. seeds using homogeneous and heterogeneous basic catalysts

AU - Martínez, Araceli

AU - Mijangos, Gabriela E.

AU - Romero-Ibarra, Issis C.

AU - Hernández-Altamirano, Raúl

AU - Mena-Cervantes, Violeta Y.

PY - 2019/1/1

Y1 - 2019/1/1

N2 - © 2018 Elsevier Ltd The in-situ or direct transesterification from non-edible Jatropha curcas L. (Jatropha) seeds is a suitable alternative to produce fatty acid methyl esters (FAME) in one-step. The FAME production was investigated in presence of homogeneous (NaOH) or heterogeneous (Na2ZrO3) catalysts. Parameters, such as catalyst concentration (between 1 and 10 wt%), reaction time, temperature and methanol/oil molar ratio were analysed. The maximum heterogeneous direct transesterification of FAME yield was 99.9% using 5 wt% of Na2ZrO3 at 65 °C and 8 h. Results showed that no solvent for oil extraction is required. The resulting FAME shows good purity and composition. Moreover, no water is required to purify the FAME. Compositional analysis of FAME indicated that linoleic (C18:2), oleic (C18:1) and palmitic (C16:0) methyl esters were the major components. In addition, the reusability of the catalyst was also investigated. The basic heterogeneous catalyst exhibited stability in the direct transesterification reactions with yields of >72.5% during five cycles. Finally, Green Metrics values were proposed as parameters to evaluate the FAME obtained in one-pot from seeds directly. The heterogeneous direct transesterification process resulted 55% greener as compared to conventional transesterification and 39.4% greener than homogenous direct transesterification. Heterogeneous direct transesterification is a promising alternative for more clean, efficient, scalable and cost-effective FAME production that has the potential to developing new technologies.

AB - © 2018 Elsevier Ltd The in-situ or direct transesterification from non-edible Jatropha curcas L. (Jatropha) seeds is a suitable alternative to produce fatty acid methyl esters (FAME) in one-step. The FAME production was investigated in presence of homogeneous (NaOH) or heterogeneous (Na2ZrO3) catalysts. Parameters, such as catalyst concentration (between 1 and 10 wt%), reaction time, temperature and methanol/oil molar ratio were analysed. The maximum heterogeneous direct transesterification of FAME yield was 99.9% using 5 wt% of Na2ZrO3 at 65 °C and 8 h. Results showed that no solvent for oil extraction is required. The resulting FAME shows good purity and composition. Moreover, no water is required to purify the FAME. Compositional analysis of FAME indicated that linoleic (C18:2), oleic (C18:1) and palmitic (C16:0) methyl esters were the major components. In addition, the reusability of the catalyst was also investigated. The basic heterogeneous catalyst exhibited stability in the direct transesterification reactions with yields of >72.5% during five cycles. Finally, Green Metrics values were proposed as parameters to evaluate the FAME obtained in one-pot from seeds directly. The heterogeneous direct transesterification process resulted 55% greener as compared to conventional transesterification and 39.4% greener than homogenous direct transesterification. Heterogeneous direct transesterification is a promising alternative for more clean, efficient, scalable and cost-effective FAME production that has the potential to developing new technologies.

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U2 - 10.1016/j.fuel.2018.07.082

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