Valorization of walnut shell ash as a catalyst for biodiesel production
Authorized Users Only
2020
Authors
Miladinović, Marija R.Zdujić, Miodrag

Veljović, Đorđe
Krstić, Jugoslav B.
Banković Ilić, Ivana B.
Veljković, Vlada B.

Stamenković, Olivera S.
Article (Published version)

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Show full item recordAbstract
The catalytic activity of the walnut shell ash was investigated in the biodiesel production by the sunflower oil methanolysis. The catalyst was characterized by the TG-DTA, XRD, Hg porosimetry, N2 physisorption, SEM, and Hammett method. In addition, the effects of the catalyst loading and the methanol-to-oil molar ratio on the methyl esters synthesis were tested at the reaction temperature of 60 °C. The walnut shell ash provided a very fast reaction and a high FAME content (over 98%). As the reaction occurred in the absence of triacylglycerols mass transfer limitation, the pseudo-first-order model was employed for describing the kinetics of the reaction. The catalyst was successfully reused four times after the regeneration of the catalytic activity by recalcination at 800 °C.
Keywords:
walnut shell / sunflower oil / methanolysis / kinetics / biodiesel / ashSource:
Renewable Energy, 2020, 147, 1033-1043Publisher:
- Elsevier
Projects:
- Nanostructured Functional and Composite Materials in Catalytic and Sorption Processes (RS-45001)
- Project 0-14-18 of the SASA Branch in Niš, Serbia
DOI: 10.1016/j.renene.2019.09.056
ISSN: 09601481
WoS: 000502880700091
Scopus: 2-s2.0-85072388245
TY - JOUR AU - Miladinović, Marija R. AU - Zdujić, Miodrag AU - Veljović, Đorđe AU - Krstić, Jugoslav B. AU - Banković Ilić, Ivana B. AU - Veljković, Vlada B. AU - Stamenković, Olivera S. PY - 2020 UR - http://cer.ihtm.bg.ac.rs/handle/123456789/3217 UR - http://dais.sanu.ac.rs/123456789/6717 AB - The catalytic activity of the walnut shell ash was investigated in the biodiesel production by the sunflower oil methanolysis. The catalyst was characterized by the TG-DTA, XRD, Hg porosimetry, N2 physisorption, SEM, and Hammett method. In addition, the effects of the catalyst loading and the methanol-to-oil molar ratio on the methyl esters synthesis were tested at the reaction temperature of 60 °C. The walnut shell ash provided a very fast reaction and a high FAME content (over 98%). As the reaction occurred in the absence of triacylglycerols mass transfer limitation, the pseudo-first-order model was employed for describing the kinetics of the reaction. The catalyst was successfully reused four times after the regeneration of the catalytic activity by recalcination at 800 °C. PB - Elsevier T2 - Renewable Energy T1 - Valorization of walnut shell ash as a catalyst for biodiesel production SP - 1033 EP - 1043 VL - 147 DO - 10.1016/j.renene.2019.09.056 ER -
@article{ author = "Miladinović, Marija R. and Zdujić, Miodrag and Veljović, Đorđe and Krstić, Jugoslav B. and Banković Ilić, Ivana B. and Veljković, Vlada B. and Stamenković, Olivera S.", year = "2020", url = "http://cer.ihtm.bg.ac.rs/handle/123456789/3217, http://dais.sanu.ac.rs/123456789/6717", abstract = "The catalytic activity of the walnut shell ash was investigated in the biodiesel production by the sunflower oil methanolysis. The catalyst was characterized by the TG-DTA, XRD, Hg porosimetry, N2 physisorption, SEM, and Hammett method. In addition, the effects of the catalyst loading and the methanol-to-oil molar ratio on the methyl esters synthesis were tested at the reaction temperature of 60 °C. The walnut shell ash provided a very fast reaction and a high FAME content (over 98%). As the reaction occurred in the absence of triacylglycerols mass transfer limitation, the pseudo-first-order model was employed for describing the kinetics of the reaction. The catalyst was successfully reused four times after the regeneration of the catalytic activity by recalcination at 800 °C.", publisher = "Elsevier", journal = "Renewable Energy", title = "Valorization of walnut shell ash as a catalyst for biodiesel production", pages = "1033-1043", volume = "147", doi = "10.1016/j.renene.2019.09.056" }
Miladinović MR, Zdujić M, Veljović Đ, Krstić JB, Banković Ilić IB, Veljković VB, Stamenković OS. Valorization of walnut shell ash as a catalyst for biodiesel production. Renewable Energy. 2020;147:1033-1043
Miladinović, M. R., Zdujić, M., Veljović, Đ., Krstić, J. B., Banković Ilić, I. B., Veljković, V. B.,& Stamenković, O. S. (2020). Valorization of walnut shell ash as a catalyst for biodiesel production. Renewable EnergyElsevier., 147, 1033-1043. https://doi.org/10.1016/j.renene.2019.09.056
Miladinović Marija R., Zdujić Miodrag, Veljović Đorđe, Krstić Jugoslav B., Banković Ilić Ivana B., Veljković Vlada B., Stamenković Olivera S., "Valorization of walnut shell ash as a catalyst for biodiesel production" 147 (2020):1033-1043, https://doi.org/10.1016/j.renene.2019.09.056 .