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Calcium diglyceroxide synthesized by mechanochemical treatment, its characterization and application as catalyst for fatty acid methyl esters production

Authorized Users Only
2016
Authors
Lukić, Ivana
Kesić, Željka
Zdujić, Miodrag
Skala, Dejan
Article (Published version)
Metadata
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Abstract
In the present work, calcium diglyceroxide (CaDG) was synthesized by mechanochemical treatment of CaO dispersed in glycerol, and characterized by X-ray diffraction (XRD), thermal analysis (TGA/DTA), infrared spectroscopy (FTIR), and Hammett indicator method for base strength determination. The obtained CaDG was tested as a catalyst in the methanolysis of sunflower oil under different working conditions: catalyst amount, agitation speed, temperature and methanol to oil molar ratio. The main advantage of CaDG used as a catalyst in methanolysis is related to the initial rate of methanolysis. According to many previously reported data in literature the mass transfer resistance controls the overall rate of methanolysis, but it is not observed with CaDG used as catalyst. Recently developed kinetic model that describes the complex methanolysis process was successfully applied for this system and model parameters were determined, supporting the explanation of the physical effect of the CaDG ca...talyst on the reduction of mass transfer resistance and increasing the rate of methanolysis. The absence of mass transfer rate at the beginning of process is a consequence of the nature of the CaDG, which is adsorbed at the droplet interfaces between methanol and oil leading to the formation of fine dispersion of these two immiscible liquids.

Keywords:
biodiesel / calcium diglyceroxide / mechanochemical synthesis / kinetic model / mass transfer resistance
Source:
Fuel, 2016, 165, 159-165
Publisher:
  • Elsevier
Funding / projects:
  • Nanostructured Functional and Composite Materials in Catalytic and Sorption Processes (RS-45001)

DOI: 10.1016/j.fuel.2015.10.063

ISSN: 0016-2361

WoS: 000364655000019

Scopus: 2-s2.0-84946119804
[ Google Scholar ]
28
25
Handle
https://hdl.handle.net/21.15107/rcub_dais_2315
URI
https://dais.sanu.ac.rs/123456789/2315
Collections
  • ИТН САНУ - Општа колекција / ITS SASA - General collection
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASA
TY  - JOUR
AU  - Lukić, Ivana
AU  - Kesić, Željka
AU  - Zdujić, Miodrag
AU  - Skala, Dejan
PY  - 2016
UR  - https://dais.sanu.ac.rs/123456789/2315
AB  - In the present work, calcium diglyceroxide (CaDG) was synthesized by mechanochemical treatment of CaO dispersed in glycerol, and characterized by X-ray diffraction (XRD), thermal analysis (TGA/DTA), infrared spectroscopy (FTIR), and Hammett indicator method for base strength determination. The obtained CaDG was tested as a catalyst in the methanolysis of sunflower oil under different working conditions: catalyst amount, agitation speed, temperature and methanol to oil molar ratio. The main advantage of CaDG used as a catalyst in methanolysis is related to the initial rate of methanolysis. According to many previously reported data in literature the mass transfer resistance controls the overall rate of methanolysis, but it is not observed with CaDG used as catalyst. Recently developed kinetic model that describes the complex methanolysis process was successfully applied for this system and model parameters were determined, supporting the explanation of the physical effect of the CaDG catalyst on the reduction of mass transfer resistance and increasing the rate of methanolysis. The absence of mass transfer rate at the beginning of process is a consequence of the nature of the CaDG, which is adsorbed at the droplet interfaces between methanol and oil leading to the formation of fine dispersion of these two immiscible liquids.
PB  - Elsevier
T2  - Fuel
T1  - Calcium diglyceroxide synthesized by mechanochemical treatment, its characterization and application as catalyst for fatty acid methyl esters production
SP  - 159
EP  - 165
VL  - 165
DO  - 10.1016/j.fuel.2015.10.063
UR  - https://hdl.handle.net/21.15107/rcub_dais_2315
ER  - 
@article{
author = "Lukić, Ivana and Kesić, Željka and Zdujić, Miodrag and Skala, Dejan",
year = "2016",
abstract = "In the present work, calcium diglyceroxide (CaDG) was synthesized by mechanochemical treatment of CaO dispersed in glycerol, and characterized by X-ray diffraction (XRD), thermal analysis (TGA/DTA), infrared spectroscopy (FTIR), and Hammett indicator method for base strength determination. The obtained CaDG was tested as a catalyst in the methanolysis of sunflower oil under different working conditions: catalyst amount, agitation speed, temperature and methanol to oil molar ratio. The main advantage of CaDG used as a catalyst in methanolysis is related to the initial rate of methanolysis. According to many previously reported data in literature the mass transfer resistance controls the overall rate of methanolysis, but it is not observed with CaDG used as catalyst. Recently developed kinetic model that describes the complex methanolysis process was successfully applied for this system and model parameters were determined, supporting the explanation of the physical effect of the CaDG catalyst on the reduction of mass transfer resistance and increasing the rate of methanolysis. The absence of mass transfer rate at the beginning of process is a consequence of the nature of the CaDG, which is adsorbed at the droplet interfaces between methanol and oil leading to the formation of fine dispersion of these two immiscible liquids.",
publisher = "Elsevier",
journal = "Fuel",
title = "Calcium diglyceroxide synthesized by mechanochemical treatment, its characterization and application as catalyst for fatty acid methyl esters production",
pages = "159-165",
volume = "165",
doi = "10.1016/j.fuel.2015.10.063",
url = "https://hdl.handle.net/21.15107/rcub_dais_2315"
}
Lukić, I., Kesić, Ž., Zdujić, M.,& Skala, D.. (2016). Calcium diglyceroxide synthesized by mechanochemical treatment, its characterization and application as catalyst for fatty acid methyl esters production. in Fuel
Elsevier., 165, 159-165.
https://doi.org/10.1016/j.fuel.2015.10.063
https://hdl.handle.net/21.15107/rcub_dais_2315
Lukić I, Kesić Ž, Zdujić M, Skala D. Calcium diglyceroxide synthesized by mechanochemical treatment, its characterization and application as catalyst for fatty acid methyl esters production. in Fuel. 2016;165:159-165.
doi:10.1016/j.fuel.2015.10.063
https://hdl.handle.net/21.15107/rcub_dais_2315 .
Lukić, Ivana, Kesić, Željka, Zdujić, Miodrag, Skala, Dejan, "Calcium diglyceroxide synthesized by mechanochemical treatment, its characterization and application as catalyst for fatty acid methyl esters production" in Fuel, 165 (2016):159-165,
https://doi.org/10.1016/j.fuel.2015.10.063 .,
https://hdl.handle.net/21.15107/rcub_dais_2315 .

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