Sulfonated MCM-41 as potential catalyst to obtain biolubricants from vegetable oil
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Title: | Sulfonated MCM-41 as potential catalyst to obtain biolubricants from vegetable oil |
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Authors: | Ferreira, Aurélia R.O. | Silvestre-Albero, Joaquín | Maier, Martin E. | Ricardo, Nágila M.P.S. | Cavalcante Jr, Célio L. | Luna, F. Murilo T. |
Research Group/s: | Materiales Avanzados |
Center, Department or Service: | Universidad de Alicante. Departamento de Química Inorgánica |
Keywords: | Mesoporous materials | MCM-41 | Heterogeneous catalysis | Esterification | Fatty acids |
Knowledge Area: | Química Inorgánica |
Issue Date: | 3-Jan-2022 |
Publisher: | Springer Nature |
Citation: | Brazilian Journal of Chemical Engineering. 2022, 39: 991-1000. https://doi.org/10.1007/s43153-021-00204-4 |
Abstract: | Biolubricants may be obtained from vegetable oils using appropriate chemical modifications, to improve their physicochemical properties for lubrication applications. In this study, the esterification of a free fatty acid (FFA) with long chain alcohols was performed using sulfonated mesoporous silica as catalyst. Fresh and functionalized MCM-41 samples were prepared to evaluate the effect of the sulfonic surface group on the esterification reaction. MCM-41 was functionalized via post-synthesis modification using 3-mercaptopropyltrimethoxysilane (MPTS) as silylating agent. The synthesized catalysts were characterized using several techniques. After the functionalization, a decrease in the apparent surface area and pore diameter were observed. The MCM-41/SO3H sample was applied in the esterification reaction of oleic acid (as a FFA model) using two different long-chain alcohols (octanol and 2-ethylhexanol). The catalytic results reveal that sulfonated catalyst showed excellent conversions (~ 100% mol when using octanol and > 93% mol using 2-ethylhexanol) and selectivities to esters (ca. 90%). |
Sponsor: | The authors wish to acknowledge the financial support provided by FUNCAP (Fundação Cearense de Apoio ao Desenvolvimento Científico e Tecnológico) and CNPq (Conselho Nacional de Desenvolvimento Científico e Tecnológico). This study was financed in part by the CAPES (Coordenação de Aperfeiçoamento de Pessoal de Nível Superior)—Brazil, Finance Code 001. Also, financial support from GV (PROMETEOII/2014/004), MINECO (MAT2016-80285-p) and H2020 (MSCA-RISE-2016/NanoMed Project) is gratefully acknowledged. |
URI: | http://hdl.handle.net/10045/120747 |
ISSN: | 0104-6632 (Print) | 1678-4383 (Online) |
DOI: | 10.1007/s43153-021-00204-4 |
Language: | eng |
Type: | info:eu-repo/semantics/article |
Rights: | © Associação Brasileira de Engenharia Química 2021 |
Peer Review: | si |
Publisher version: | https://doi.org/10.1007/s43153-021-00204-4 |
Appears in Collections: | Research funded by the EU INV - LMA - Artículos de Revistas |
Files in This Item:
File | Description | Size | Format | |
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Ferreira_etal_2022_BrazJChemEng_preprint.pdf | Preprint (acceso abierto) | 654,3 kB | Adobe PDF | Open Preview |
Ferreira_etal_2022_BrazJChemEng_final.pdf | Versión final (acceso restringido) | 1,79 MB | Adobe PDF | Open Request a copy |
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