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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2022
Authors
Marinković, MilošWaisi, Hadi
Blagojević, Stevan
Zarubica, Aleksandra R.
Ljupković, Radomir
Krstić, Aleksandra
Janković, Bojan Ž.
Article (Published version)
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© 2022 Elsevier Ltd
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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 γ-Al2O3 support and KI/γ-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 γ-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/γ-Al2O3-770 catalyst under follo...wing 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:
Biodiesel production / Heterogeneous catalysis / Potassium loaded alumina / Process parameters / TransesterificationSource:
Fuel, 2022, 315, 123246-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)
Note:
- Link to erratum: https://vinar.vin.bg.ac.rs/handle/123456789/10192
Related info:
- Referenced by
https://vinar.vin.bg.ac.rs/handle/123456789/10192
DOI: 10.1016/j.fuel.2022.123246
ISSN: 0016-2361
WoS: 000747424000002
Scopus: 2-s2.0-85122811684
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VinčaTY - JOUR AU - Marinković, Miloš AU - Waisi, Hadi AU - Blagojević, Stevan AU - Zarubica, Aleksandra R. AU - Ljupković, Radomir AU - Krstić, Aleksandra AU - Janković, Bojan Ž. PY - 2022 UR - https://vinar.vin.bg.ac.rs/handle/123456789/10134 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 γ-Al2O3 support and KI/γ-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 γ-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/γ-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. 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 SP - 123246 DO - 10.1016/j.fuel.2022.123246 ER -
@article{ author = "Marinković, Miloš and Waisi, Hadi and Blagojević, Stevan and Zarubica, Aleksandra R. and Ljupković, Radomir and Krstić, Aleksandra and Janković, Bojan Ž.", 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 γ-Al2O3 support and KI/γ-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 γ-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/γ-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.", 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", pages = "123246", doi = "10.1016/j.fuel.2022.123246" }
Marinković, M., Waisi, H., Blagojević, S., Zarubica, A. R., Ljupković, R., Krstić, A.,& Janković, B. Ž.. (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, 315, 123246. https://doi.org/10.1016/j.fuel.2022.123246
Marinković M, Waisi H, Blagojević S, Zarubica AR, Ljupković R, Krstić A, Janković BŽ. 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;315:123246. doi:10.1016/j.fuel.2022.123246 .
Marinković, Miloš, Waisi, Hadi, Blagojević, Stevan, Zarubica, Aleksandra R., Ljupković, Radomir, Krstić, Aleksandra, Janković, Bojan Ž., "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):123246, https://doi.org/10.1016/j.fuel.2022.123246 . .