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The effect of agitation intensity on alkali-catalyzed methanolysis of sunflower oil

Authorized Users Only
2007
Authors
Stamenković, Olivera S.
Lazić, M.L.
Todorović, Z.B.
Veljković, V.B.
Skala, Dejan
Article (Published version)
Metadata
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Abstract
The sunflower oil methanolysis was studied in a stirred reactor at different agitation speeds. The measurements of drop size, drop size distribution and the conversion degree demonstrate the effects of the agitation speed in both non-reaction (methanol/sunflower oil) and reaction (methanol/KOH/sunflower oil) systems. Drop size distributions were found to become narrower and shift to smaller sizes with increasing agitation speed as well as with the progress of the methanolysis reaction at a constant agitation speed. During the methanolysis reaction, the Sauter-mean drop diameter stays constant in the initial slow reaction region, rapidly decreases during the fast reaction period and finally reaches the equilibrium level. Due to the fact that the interfacial area increases, one can conclude that the rate of reaction occurring at the interface will also be enhanced progressively. The "autocatalytic" behavior of the methanolysis reaction is explained by this "self-enhancement" of the inter...facial area, due to intensive drop breakage process.

Keywords:
Biodiesel / Kinetics / Methanolysis / Sauter-mean diameter / Sunflower oil
Source:
Bioresource Technology, 2007, 98, 14, 2688-2699
Publisher:
  • Elsevier
Funding / projects:
  • This work has been funded by the Ministry of Science and Environmental Protection of the Republic of Serbia (Project TR6742B)

DOI: 10.1016/j.biortech.2006.09.024

ISSN: 0960-8524

WoS: 000247650700009

Scopus: 2-s2.0-34047146614
[ Google Scholar ]
130
106
URI
http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5522
Collections
  • Radovi istraživača / Researchers’ publications (TMF)
Institution/Community
Tehnološko-metalurški fakultet
TY  - JOUR
AU  - Stamenković, Olivera S.
AU  - Lazić, M.L.
AU  - Todorović, Z.B.
AU  - Veljković, V.B.
AU  - Skala, Dejan
PY  - 2007
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5522
AB  - The sunflower oil methanolysis was studied in a stirred reactor at different agitation speeds. The measurements of drop size, drop size distribution and the conversion degree demonstrate the effects of the agitation speed in both non-reaction (methanol/sunflower oil) and reaction (methanol/KOH/sunflower oil) systems. Drop size distributions were found to become narrower and shift to smaller sizes with increasing agitation speed as well as with the progress of the methanolysis reaction at a constant agitation speed. During the methanolysis reaction, the Sauter-mean drop diameter stays constant in the initial slow reaction region, rapidly decreases during the fast reaction period and finally reaches the equilibrium level. Due to the fact that the interfacial area increases, one can conclude that the rate of reaction occurring at the interface will also be enhanced progressively. The "autocatalytic" behavior of the methanolysis reaction is explained by this "self-enhancement" of the interfacial area, due to intensive drop breakage process.
PB  - Elsevier
T2  - Bioresource Technology
T1  - The effect of agitation intensity on alkali-catalyzed methanolysis of sunflower oil
EP  - 2699
IS  - 14
SP  - 2688
VL  - 98
DO  - 10.1016/j.biortech.2006.09.024
ER  - 
@article{
author = "Stamenković, Olivera S. and Lazić, M.L. and Todorović, Z.B. and Veljković, V.B. and Skala, Dejan",
year = "2007",
abstract = "The sunflower oil methanolysis was studied in a stirred reactor at different agitation speeds. The measurements of drop size, drop size distribution and the conversion degree demonstrate the effects of the agitation speed in both non-reaction (methanol/sunflower oil) and reaction (methanol/KOH/sunflower oil) systems. Drop size distributions were found to become narrower and shift to smaller sizes with increasing agitation speed as well as with the progress of the methanolysis reaction at a constant agitation speed. During the methanolysis reaction, the Sauter-mean drop diameter stays constant in the initial slow reaction region, rapidly decreases during the fast reaction period and finally reaches the equilibrium level. Due to the fact that the interfacial area increases, one can conclude that the rate of reaction occurring at the interface will also be enhanced progressively. The "autocatalytic" behavior of the methanolysis reaction is explained by this "self-enhancement" of the interfacial area, due to intensive drop breakage process.",
publisher = "Elsevier",
journal = "Bioresource Technology",
title = "The effect of agitation intensity on alkali-catalyzed methanolysis of sunflower oil",
pages = "2699-2688",
number = "14",
volume = "98",
doi = "10.1016/j.biortech.2006.09.024"
}
Stamenković, O. S., Lazić, M.L., Todorović, Z.B., Veljković, V.B.,& Skala, D.. (2007). The effect of agitation intensity on alkali-catalyzed methanolysis of sunflower oil. in Bioresource Technology
Elsevier., 98(14), 2688-2699.
https://doi.org/10.1016/j.biortech.2006.09.024
Stamenković OS, Lazić M, Todorović Z, Veljković V, Skala D. The effect of agitation intensity on alkali-catalyzed methanolysis of sunflower oil. in Bioresource Technology. 2007;98(14):2688-2699.
doi:10.1016/j.biortech.2006.09.024 .
Stamenković, Olivera S., Lazić, M.L., Todorović, Z.B., Veljković, V.B., Skala, Dejan, "The effect of agitation intensity on alkali-catalyzed methanolysis of sunflower oil" in Bioresource Technology, 98, no. 14 (2007):2688-2699,
https://doi.org/10.1016/j.biortech.2006.09.024 . .

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