This paper investigates glycerol and glycerides extraction process from fresh and waste sunflower oil biodiesel. Deep eutectic solvent choline-chloride: ethylene-glycol (molar ratio 1:2.5) was used as extraction media in both batch experiments and continuous Karr column. Biodiesel was synthesized in an alkali catalysed chemical transesterification reaction. Three process variables, namely hydrodynamic conditions, solvent to biodiesel ratio and extraction duration were investigated and their impact on the extraction efficiency was found to be largely negligible. Throughout the whole range of process variables the extraction efficiency was relatively high, getting slightly lower only during the continuous experiments. After the extraction, free glycerol content was below the limit for all samples, but the total glycerol and glycerides content was too high to fully comply with biodiesel quality standards. Selected extraction solvent has proved to be efficient for free glycerol removal in the tested range of conditions, but further process modifications and possible raw material and biodiesel processing will be needed to reduce the content of total glycerol and glycerides.
| Published in | Science Journal of Energy Engineering (Volume 5, Issue 4) |
| DOI | 10.11648/j.sjee.20170504.12 |
| Page(s) | 87-94 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2017. Published by Science Publishing Group |
Biodiesel, Deep Eutectic Solvents, Glycerol, Liquid-Liquid Extraction
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APA Style
Ana Petracic, Aleksandra Sander, Lana Magic. (2017). Separation of Free Glycerol and Glycerides from Biodiesel by Means of Liquid-Liquid Extraction. Science Journal of Energy Engineering, 5(4), 87-94. https://doi.org/10.11648/j.sjee.20170504.12
ACS Style
Ana Petracic; Aleksandra Sander; Lana Magic. Separation of Free Glycerol and Glycerides from Biodiesel by Means of Liquid-Liquid Extraction. Sci. J. Energy Eng. 2017, 5(4), 87-94. doi: 10.11648/j.sjee.20170504.12
AMA Style
Ana Petracic, Aleksandra Sander, Lana Magic. Separation of Free Glycerol and Glycerides from Biodiesel by Means of Liquid-Liquid Extraction. Sci J Energy Eng. 2017;5(4):87-94. doi: 10.11648/j.sjee.20170504.12
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Download@article{10.11648/j.sjee.20170504.12,
author = {Ana Petracic and Aleksandra Sander and Lana Magic},
title = {Separation of Free Glycerol and Glycerides from Biodiesel by Means of Liquid-Liquid Extraction},
journal = {Science Journal of Energy Engineering},
volume = {5},
number = {4},
pages = {87-94},
doi = {10.11648/j.sjee.20170504.12},
url = {https://doi.org/10.11648/j.sjee.20170504.12},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sjee.20170504.12},
abstract = {This paper investigates glycerol and glycerides extraction process from fresh and waste sunflower oil biodiesel. Deep eutectic solvent choline-chloride: ethylene-glycol (molar ratio 1:2.5) was used as extraction media in both batch experiments and continuous Karr column. Biodiesel was synthesized in an alkali catalysed chemical transesterification reaction. Three process variables, namely hydrodynamic conditions, solvent to biodiesel ratio and extraction duration were investigated and their impact on the extraction efficiency was found to be largely negligible. Throughout the whole range of process variables the extraction efficiency was relatively high, getting slightly lower only during the continuous experiments. After the extraction, free glycerol content was below the limit for all samples, but the total glycerol and glycerides content was too high to fully comply with biodiesel quality standards. Selected extraction solvent has proved to be efficient for free glycerol removal in the tested range of conditions, but further process modifications and possible raw material and biodiesel processing will be needed to reduce the content of total glycerol and glycerides.},
year = {2017}
}
TY - JOUR T1 - Separation of Free Glycerol and Glycerides from Biodiesel by Means of Liquid-Liquid Extraction AU - Ana Petracic AU - Aleksandra Sander AU - Lana Magic Y1 - 2017/10/31 PY - 2017 N1 - https://doi.org/10.11648/j.sjee.20170504.12 DO - 10.11648/j.sjee.20170504.12 T2 - Science Journal of Energy Engineering JF - Science Journal of Energy Engineering JO - Science Journal of Energy Engineering SP - 87 EP - 94 PB - Science Publishing Group SN - 2376-8126 UR - https://doi.org/10.11648/j.sjee.20170504.12 AB - This paper investigates glycerol and glycerides extraction process from fresh and waste sunflower oil biodiesel. Deep eutectic solvent choline-chloride: ethylene-glycol (molar ratio 1:2.5) was used as extraction media in both batch experiments and continuous Karr column. Biodiesel was synthesized in an alkali catalysed chemical transesterification reaction. Three process variables, namely hydrodynamic conditions, solvent to biodiesel ratio and extraction duration were investigated and their impact on the extraction efficiency was found to be largely negligible. Throughout the whole range of process variables the extraction efficiency was relatively high, getting slightly lower only during the continuous experiments. After the extraction, free glycerol content was below the limit for all samples, but the total glycerol and glycerides content was too high to fully comply with biodiesel quality standards. Selected extraction solvent has proved to be efficient for free glycerol removal in the tested range of conditions, but further process modifications and possible raw material and biodiesel processing will be needed to reduce the content of total glycerol and glycerides. VL - 5 IS - 4 ER -
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