Urea fractionation of used palm oil methyl esters

Nur Azreena Idris, . and Soh K. L., . and Yuen M. C., . Urea fractionation of used palm oil methyl esters. pp. 226-231. ISSN 1511-2780

Urea has shown a remarkable ability in forming well-defined and easy-to-handle crystalline complexes. In general the use of urea as a ligand provides efficient separation in fat with a wide variety of straight chain compounds but is not applicable to fat containing branched or cyclic compounds. This study was conducted to investigate the fractionation of used frying oil (palm-based) methyl esters (UFOME) with urea and the separation profile according to their degree of unsaturation. A comparison on the effectiveness of fractionation was made with the increment of the treatment level of urea. The urea was added at different ratios (UFOME: urea w/w) i.e. 1:0.5 1:0.75 and 1:1. It was found that the most effective fractionation of the unsaturated methyl esters (ME) was achieved when the treatment level of UFOME: urea was 1:0.75. The unsaturated ME was enriched from 58.81 to 88.03 after the urea fractionation. The enriched unsaturated ME will be a useful feedstock for oleochemicals and other processes requiring high level of unsaturation in their fatty acyl chain.

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Abstract

Urea has shown a remarkable ability in forming well-defined and easy-to-handle crystalline complexes. In general the use of urea as a ligand provides efficient separation in fat with a wide variety of straight chain compounds but is not applicable to fat containing branched or cyclic compounds. This study was conducted to investigate the fractionation of used frying oil (palm-based) methyl esters (UFOME) with urea and the separation profile according to their degree of unsaturation. A comparison on the effectiveness of fractionation was made with the increment of the treatment level of urea. The urea was added at different ratios (UFOME: urea w/w) i.e. 1:0.5 1:0.75 and 1:1. It was found that the most effective fractionation of the unsaturated methyl esters (ME) was achieved when the treatment level of UFOME: urea was 1:0.75. The unsaturated ME was enriched from 58.81 to 88.03 after the urea fractionation. The enriched unsaturated ME will be a useful feedstock for oleochemicals and other processes requiring high level of unsaturation in their fatty acyl chain.

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Item Type:	Article
AGROVOC Term:	Palm oils
AGROVOC Term:	Esters
AGROVOC Term:	Urea
AGROVOC Term:	Fractionation
AGROVOC Term:	Ligands
AGROVOC Term:	Separation
AGROVOC Term:	Frying
AGROVOC Term:	Unsaturated fats
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:29
URI:	http://webagris.upm.edu.my/id/eprint/24611

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