The effect of process parameters and catalyst support preparation methods on the catalytic efficiency in transesterification of sunflower oil over heterogeneous KI/Al2O3-based catalysts for biodiesel production
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Marinković, Miloš![](/themes/Mirageriofh/images/orcid.png)
Waisi, Hadi
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Blagojević, Stevan
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Zarubica, Aleksandra
Ljupković, Radomir
Krstić, Aleksandra
Janković, Bojan
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The essence of this study is synthesis of a newly developed and efficient heterogeneous catalyst based on aluminum oxide support promoted with potassium iodide (KI) as active dopant responsible for pronounced catalyst activity. Modified sol-gel, reflux and hydrothermal method were used for synthesis of aluminum-oxide support using aluminum isopropoxide as a precursor. The gamma-Al2O3 support and KI/gamma-Al2O3 catalyst samples were examined by various experimental techniques. Effects of several operational parameters were considered and those are: methanol to sunflower oil molar ratio, catalyst loadings, reaction time and reaction stirring rate. The obtained results indicated that modified sol-gel method for synthesis of gamma-Al2O3 catalyst support is the most favorable for obtaining the catalyst with superior catalytic performances in transesterification of sunflower oil. A maximum conversion (triglycerides to methyl esters) of 99.99% was achieved using the SG-KI/gamma-Al2O3-770 cata...lyst under following optimal process parameters: 15:1 methanol to sunflower oil molar ratio, 2.5 wt% catalysts loading, 600 rpm stirring rate and 4 h of the reaction run.
Keywords:
Transesterification / Process parameters / Potassium loaded alumina / Heterogeneous catalysis / Biodiesel productionSource:
Fuel, 2022, 315Publisher:
- Elsevier Ltd
Funding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200051 (Institute of General and Physical Chemistry, Belgrade) (RS-MESTD-inst-2020-200051)
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200124 (Univeristy of Niš, Faculty of Science) (RS-MESTD-inst-2020-200124)
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200017 (University of Belgrade, Institute of Nuclear Sciences 'Vinča', Belgrade-Vinča) (RS-MESTD-inst-2020-200017)
DOI: 10.1016/j.fuel.2022.123246
ISSN: 0016-2361
WoS: 000747424000002
Scopus: 2-s2.0-85122811684
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Institut za opštu i fizičku hemijuTY - JOUR AU - Marinković, Miloš AU - Waisi, Hadi AU - Blagojević, Stevan AU - Zarubica, Aleksandra AU - Ljupković, Radomir AU - Krstić, Aleksandra AU - Janković, Bojan PY - 2022 UR - https://riofh.iofh.bg.ac.rs/handle/123456789/931 AB - The essence of this study is synthesis of a newly developed and efficient heterogeneous catalyst based on aluminum oxide support promoted with potassium iodide (KI) as active dopant responsible for pronounced catalyst activity. Modified sol-gel, reflux and hydrothermal method were used for synthesis of aluminum-oxide support using aluminum isopropoxide as a precursor. The gamma-Al2O3 support and KI/gamma-Al2O3 catalyst samples were examined by various experimental techniques. Effects of several operational parameters were considered and those are: methanol to sunflower oil molar ratio, catalyst loadings, reaction time and reaction stirring rate. The obtained results indicated that modified sol-gel method for synthesis of gamma-Al2O3 catalyst support is the most favorable for obtaining the catalyst with superior catalytic performances in transesterification of sunflower oil. A maximum conversion (triglycerides to methyl esters) of 99.99% was achieved using the SG-KI/gamma-Al2O3-770 catalyst under following optimal process parameters: 15:1 methanol to sunflower oil molar ratio, 2.5 wt% catalysts loading, 600 rpm stirring rate and 4 h of the reaction run. PB - Elsevier Ltd T2 - Fuel T1 - The effect of process parameters and catalyst support preparation methods on the catalytic efficiency in transesterification of sunflower oil over heterogeneous KI/Al2O3-based catalysts for biodiesel production VL - 315 DO - 10.1016/j.fuel.2022.123246 UR - conv_981 ER -
@article{ author = "Marinković, Miloš and Waisi, Hadi and Blagojević, Stevan and Zarubica, Aleksandra and Ljupković, Radomir and Krstić, Aleksandra and Janković, Bojan", year = "2022", abstract = "The essence of this study is synthesis of a newly developed and efficient heterogeneous catalyst based on aluminum oxide support promoted with potassium iodide (KI) as active dopant responsible for pronounced catalyst activity. Modified sol-gel, reflux and hydrothermal method were used for synthesis of aluminum-oxide support using aluminum isopropoxide as a precursor. The gamma-Al2O3 support and KI/gamma-Al2O3 catalyst samples were examined by various experimental techniques. Effects of several operational parameters were considered and those are: methanol to sunflower oil molar ratio, catalyst loadings, reaction time and reaction stirring rate. The obtained results indicated that modified sol-gel method for synthesis of gamma-Al2O3 catalyst support is the most favorable for obtaining the catalyst with superior catalytic performances in transesterification of sunflower oil. A maximum conversion (triglycerides to methyl esters) of 99.99% was achieved using the SG-KI/gamma-Al2O3-770 catalyst under following optimal process parameters: 15:1 methanol to sunflower oil molar ratio, 2.5 wt% catalysts loading, 600 rpm stirring rate and 4 h of the reaction run.", publisher = "Elsevier Ltd", journal = "Fuel", title = "The effect of process parameters and catalyst support preparation methods on the catalytic efficiency in transesterification of sunflower oil over heterogeneous KI/Al2O3-based catalysts for biodiesel production", volume = "315", doi = "10.1016/j.fuel.2022.123246", url = "conv_981" }
Marinković, M., Waisi, H., Blagojević, S., Zarubica, A., Ljupković, R., Krstić, A.,& Janković, B.. (2022). The effect of process parameters and catalyst support preparation methods on the catalytic efficiency in transesterification of sunflower oil over heterogeneous KI/Al2O3-based catalysts for biodiesel production. in Fuel Elsevier Ltd., 315. https://doi.org/10.1016/j.fuel.2022.123246 conv_981
Marinković M, Waisi H, Blagojević S, Zarubica A, Ljupković R, Krstić A, Janković B. The effect of process parameters and catalyst support preparation methods on the catalytic efficiency in transesterification of sunflower oil over heterogeneous KI/Al2O3-based catalysts for biodiesel production. in Fuel. 2022;315. doi:10.1016/j.fuel.2022.123246 conv_981 .
Marinković, Miloš, Waisi, Hadi, Blagojević, Stevan, Zarubica, Aleksandra, Ljupković, Radomir, Krstić, Aleksandra, Janković, Bojan, "The effect of process parameters and catalyst support preparation methods on the catalytic efficiency in transesterification of sunflower oil over heterogeneous KI/Al2O3-based catalysts for biodiesel production" in Fuel, 315 (2022), https://doi.org/10.1016/j.fuel.2022.123246 ., conv_981 .