Abstract
The production of fatty acid ethyl esters (FAEE) from high acid value palm oil (APO) was investigated. Reactions were carried out in a single step (simultaneous esterification and transesterification—SET) using zinc stearate as the catalyst precursor. Zinc stearate was characterized for its structural patterns and functional groups before and after SET using X-ray diffraction, Fourier-transform infrared spectroscopy, thermogravimetric analysis (TG), differential scanning calorimetry (DSC), scanning electron microscopy (SEM), and gas chromatography (GC). The effects of SET parameters such as the ethanol-to-APO molar ratio, the reaction temperature, and the amount of catalyst were investigated and pre-optimized using a Central Composite Design (CCD). The presence of the catalyst proved to be a significant parameter, contributing 90.4% of the FAEE content compared to 65.9% of the FAEE content under the same reaction conditions in its absence. The best APO-to-FAEE yield of 88.6% was achieved using an ethanol-to-APO molar ratio of 12:1 and 10 wt% catalyst at 180 °C for 120 min. Under these conditions, the predicted and experimental FAEE yields were 88.5% and 88.6%, respectively. The R-squared value of the CCD mathematical model was 0.9989, indicating its high predictability and goodness of fit. Zinc stearate maintained its catalytic activity in the SET of APO for five consecutive reuse cycles, but changes in the catalyst chemical composition were observed mainly due to the conversion of zinc stearate to zinc palmitate. This new lamellar structure was maintained after being formed without changes in catalytic performance.
Similar content being viewed by others
Data availability
The relevant data from this research were included in the article and also in the supplementary material.
References
Kochepka DM, Dill LP, Couto GH et al (2015) Production of fatty acid ethyl esters from waste cooking oil using Novozym 435 in a solvent-free system. Energy Fuels 29:8074–8081. https://doi.org/10.1021/acs.energyfuels.5b02116
Escorsim AM, Hamerski F, Ramos LP et al (2019) Multifunctionality of zinc carboxylate to produce acylglycerols, free fatty acids and fatty acids methyl esters. Fuel 244:569–579. https://doi.org/10.1016/j.fuel.2019.01.178
Ramos LP, Kothe V, César-Oliveira MAF et al (2017) Biodiesel: raw materials, production technologies and fuel properties. Rev Virtual Quimíca. https://doi.org/10.21577/1984-6835.20170020
Naylor RL, Higgins MM (2017) The political economy of biodiesel in an era of low oil prices. Renew Sustain Energy Rev 77:695–705
Dill LP, Kochepka DM, Krieger N, Ramos LP (2019) Synthesis of fatty acid ethyl esters with conventional and microwave heating systems using the free lipase B from candida antarctica. Biocatal Biotransform 37:25–34. https://doi.org/10.1080/10242422.2018.1443079
Canakci M, Monyem A, Van GJ (1999) A o p b. Am Soc Agric Eng 42:1565–1572
Cordeiro CS, Arizaga GGC, Ramos LP, Wypych F (2008) A new zinc hydroxide nitrate heterogeneous catalyst for the esterification of free fatty acids and the transesterification of vegetable oils. Catal Commun 9:2140–2143. https://doi.org/10.1016/j.catcom.2008.04.015
Hamerski F, Corazza ML (2014) LDH-catalyzed esterification of lauric acid with glycerol in solvent-free system. Appl Catal A Gen 475:242–248. https://doi.org/10.1016/j.apcata.2014.01.040
De Paiva EJM, Sterchele S, Corazza ML et al (2015) Esterification of fatty acids with ethanol over layered zinc laurate and zinc stearate— kinetic modeling. Fuel 153:445–454. https://doi.org/10.1016/j.fuel.2015.03.021
Reinoso DM, Ferreira ML, Tonetto GM (2013) Study of the reaction mechanism of the transesterification of triglycerides catalyzed by zinc carboxylates. J Mol Catal A Chem 377:29–41. https://doi.org/10.1016/j.molcata.2013.04.024
Macierzanka A, Szelag H (2004) Esterification kinetics of glycerol with fatty acids in the presence of zinc carboxylates: preparation of modified acylglycerol emulsifiers. Ind Eng Chem Res 43:7744–7753. https://doi.org/10.1021/ie040077m
Cordeiro CS, Da Silva FR, Wypych F, Ramos LP (2011) Catalisadores heterogêneos para a produção de monoésteres graxos (biodiesel). Quim Nova 34:477–486
Ramos LP, Brugnago RJ, Da Silva FR et al (2015) Esterificação e transesterificação simultâneas de óleos ácidos utilizando carboxilatos lamelares de zinco como catalisadores bifuncionais. Quim Nova 38:46–54. https://doi.org/10.5935/0100-4042.20140274
Nielsen RB, Kongshaug KO, Fjellvåg H (2008) Delamination, synthesis, crystal structure and thermal properties of the layered metal-organic compound Zn(C12H14O4). J Mater Chem 18:1002–1007. https://doi.org/10.1039/b712479a
Cordeiro CS (2008) Compostos lamelares como catalisadores heterogêneos em reações de (trans)esterificação (m)etílica. Federal University of Paraná, Brazil
Barman S, Vasudevan S (2006) Contrasting melting behavior of zinc stearate and zinc oleate. J Phys Chem B 110:651–654. https://doi.org/10.1021/jp055814m
Nguyen HD, Thi Nguyen MH, Nguyen TD, Nguyen PT (2016) Nephelium lappaceum oil: a low-cost alternative feedstock for sustainable biodiesel production using magnetic solid acids. Environ Prog Sustain Energy 35:603–610. https://doi.org/10.1002/ep.12254
Dawodu FA, Ayodele OO, Xin J, Zhang S (2014) Application of solid acid catalyst derived from low value biomass for a cheaper biodiesel production. J Chem Technol Biotechnol 89:1898–1909. https://doi.org/10.1002/jctb.4274
Zillillah NTA, Li Z (2014) Phosphotungstic acid-functionalized magnetic nanoparticles as an efficient and recyclable catalyst for the one-pot production of biodiesel from grease via esterification and transesterification. Green Chem 16:1202–1210. https://doi.org/10.1039/c3gc41379a
Kim M, DiMaggio C, Salley SO, Simon Ng KY (2012) A new generation of zirconia supported metal oxide catalysts for converting low grade renewable feedstocks to biodiesel. Bioresour Technol 118:37–42. https://doi.org/10.1016/j.biortech.2012.04.035
Gombotz K, Parette R, Austic G et al (2012) MnO and TiO solid catalysts with low-grade feedstocks for biodiesel production. Fuel 92:9–15. https://doi.org/10.1016/j.fuel.2011.08.031
Jacobson K, Gopinath R, Meher LC, Dalai AK (2008) Solid acid catalyzed biodiesel production from waste cooking oil. Appl Catal B Environ 85:86–91. https://doi.org/10.1016/j.apcatb.2008.07.005
Alvarez Serafni MS, Tonetto GM (2019) Production of fatty acid methyl esters from an olive oil industry waste. Brazilian J Chem Eng 36:285–297. https://doi.org/10.1590/0104-6632.20190361s20170535
Reinoso DM, Damiani DE, Tonetto GM (2015) Efficient production of biodiesel from low-cost feedstock using zinc oleate as catalyst. Fuel Process Technol 134:26–31. https://doi.org/10.1016/j.fuproc.2015.03.003
Yusoff MFM, Xu X, Guo Z (2014) Comparison of fatty acid methyl and ethyl esters as biodiesel base stock: a review on processing and production requirements. JAOCS J Am Oil Chem Soc 91:525–531. https://doi.org/10.1007/s11746-014-2443-0
Cabral PS, Filho AZ, Voll FAP, Corazza ML (2014) Kinetis of enzimatic hidrolysis of olive oil im batch and fed-batch system. Appl Biochem Biotechnol 173:1336–1348
José C, Austic GB, Bonetto RD et al (2013) Investigation of the stability of Novozym® 435 in the production of biodiesel. Catal Today 213:73–80
Menezes RS, Leles MIG, Soares AT et al (2013) Avaliação da potencialidade de microalgas dulcícolas como fonte de matéria-prima graxa para a produção de biodiesel. Quim Nova 36:10–15. https://doi.org/10.1590/S0100-40422013000100003
dos Santos KC, Hamerski F, Pedersen Voll FA, Corazza ML (2018) Experimental and kinetic modeling of acid oil (trans)esterification in supercritical ethanol. Fuel 224:489–498. https://doi.org/10.1016/j.fuel.2018.03.102
Bondioli P, Della Bella L (2005) An alternative spectrophotometric method for the determination of free glycerol in biodiesel. Eur J Lipid Sci Technol 107:153–157. https://doi.org/10.1002/ejlt.200401054
Dugo G, La Pera L, La Torre GL, Giuffrida D (2004) Determination of Cd(II), Cu(II), Pb(II), and Zn(II) content in commercial vegetable oils using derivative potentiometric stripping analysis. Food Chem 87:639–645. https://doi.org/10.1016/j.foodchem.2003.12.035
dos Anjos VE, Abate G, Grassi MT (2017) Determination of labile species of As(V), Ba, Cd Co, Cr(III), Cu, Mn, Ni, Pb, Sr, V(V), and Zn in natural waters using diffusive gradients in thin-film (DGT) devices modified with montmorillonite. Anal Bioanal Chem 409:1963–1972. https://doi.org/10.1007/s00216-016-0144-2
Taylor RA, Ellis HA (2007) Room temperature molecular and lattice structures of a homologous series of anhydrous zinc(II) n-alkanoate. Spectrochim Acta Part A Mol Biomol Spectrosc 68:99–107. https://doi.org/10.1016/j.saa.2006.11.007
Kucek KT, César-Oliveira MAF, Wilhelm HM, Ramos LP (2007) Ethanolysis of refined soybean oil assisted by sodium and potassium hydroxides. JAOCS J Am Oil Chem Soc 84:385–392. https://doi.org/10.1007/s11746-007-1048-2
Gönen M, Balköse D, Inal F, Ülkü S (2005) Zinc stearate production by precipitation and fusion processes. Ind Eng Chem Res 44:1627–1633. https://doi.org/10.1021/ie049398o
Barman S, Vasudevan S (2006) Melting of saturated fatty acid zinc soaps. J Phys Chem B 110:22407–22414. https://doi.org/10.1021/jp064306p
Acknowledgements
This work was funded by the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq, Brazil; grant numbers 309506/2017-4 and 315930/2021-7), by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES, Brazil) through the Finance Code 001 and the Brazilian Internationalization Program—CAPES/PrInt for UFPR.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
The authors declare no conflict of interest.
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Supplementary Information
Below is the link to the electronic supplementary material.
Rights and permissions
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
About this article
Cite this article
Escorsim, A.M., Hamerski, F., Ramos, L.P. et al. Simultaneous esterification and transesterification reactions of acidic palm oil catalyzed by zinc stearate. Reac Kinet Mech Cat 137, 231–250 (2024). https://doi.org/10.1007/s11144-023-02543-4
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11144-023-02543-4