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Optimization of CaO-catalyzed sunflower oil methanolysis with crude biodiesel as a cosolvent

Само за регистроване кориснике
2019
Todorovic-Fuel-2018.pdf (1.563Mb)
Аутори
Todorović, Zoran B.
Troter, Dragan Z.
Đokić Stojanović, Dušica R.
Veličković, Ana V.
Avramović, Jelena M.
Stamenković, Olivera S.
Veselinović, Ljiljana
Veljković, Vlada B.
Чланак у часопису (Рецензирана верзија)
Метаподаци
Приказ свих података о документу
Апстракт
Crude biodiesel was proven as a cosolvent in the methanolysis of sunflower oil catalyzed by calcined CaO. This reaction was modeled and optimized statistically in terms of reaction temperature (33.2–66.8 °C), methanol-to-oil molar ratio (3.5:1–8.5:1) and catalyst concentration (0.219–1.065 mol/L). The cosolvent loading was 10 wt% (based on oil weight). The optimum reaction conditions were found to be: the methanol-to-oil molar ratio of 7.1:1, the catalyst concentration of 0.74 mol/L and the reaction temperature 52 °C, ensuring the best esters content of 99.8%, for the reaction time of 1.5 h, which is close to the reported experimental value of 98.9%. Also, the used catalyst was recycled with no additional treatment in the further four consecutive cycles under the following reaction conditions: methanol-to-oil molar ratio 6:1, the concentration of catalyst 0.642 mol/L (only in the first run), the reaction temperature 50 °C, cosolvent-crude biodiesel loading 10 wt% to oil weight. The sec...ond recycling reaction provided the highest FAME content of 97.7% after 5 h.

Кључне речи:
biodiesel / calcium leaching / CaO / cosolvent / methanolysis / recycling
Извор:
Fuel, 2019, 237, 903-910
Издавач:
  • Elsevier
Пројекти:
  • Наноструктурни функционални и композитни материјали у каталитичким и сорпционим процесима (RS-45001)
Напомена:
  • This is the peer-reviewed version of the article: Todorović, Zoran B., Dragan Z. Troter, Dušica R. Đokić-Stojanović, Ana V. Veličković, Jelena M. Avramović, Olivera S. Stamenković, Ljiljana M. Veselinović, and Vlada B. Veljković. 2019. “Optimization of CaO-Catalyzed Sunflower Oil Methanolysis with Crude Biodiesel as a Cosolvent.” Fuel 237 (February): 903–10. https://doi.org/10.1016/j.fuel.2018.10.056.
  • Supplementary material: http://dais.sanu.ac.rs/123456789/4071
  • Published version: http://dais.sanu.ac.rs/123456789/4070

DOI: 10.1016/j.fuel.2018.10.056

ISSN: 0016-2361

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URI
http://www.sciencedirect.com/science/article/pii/S0016236118317691
http://dais.sanu.ac.rs/123456789/4069
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