Enhancement of oleic acid content in palm oil via chemical interesterification for application as bio-transformer oil

Name: Nataporn Inkong

Organization : Chulalongkorn University. Faculty of Science

Email : Gamnataporn@gmail.com

Name: Boonyawan Yoosuk

Organization : National Science and Technology Development Agency (NSTDA). National Energy Technology Center (ENTEC)

Name: Napida Hinchiranan

Organization : Chulalongkorn University. Faculty of Science

Email : napida.h@chula.ac.th

keyword: Bio-based lubricants

LCSH: Palm oil -- Processing

LCSH: Electric insulators and insulation -- Oils

LCSH: Oleic acid -- Industrial applications

LCSH: Renewable energy sources

Abstract: Mineral oil, a product obtained from petroleum refinery, has excellent electrical insulation properties, efficient heat dissipation, and stability at high temperatures. However, it is nonbiodegradable and toxic to the environment. Thus, palm oil is expected to replace the use of mineral oil as a liquid insulator for transformers to reduce fossil fuel consumption. However, it has high viscosity and pour point due to palmitic acid (C16:0) and oleic acid (C18:1), which the main saturated and unsaturated components in palm oil. Since the unsaturated portion promotes the good cold flow properties of the oils, the enhancement of the unsaturated part in the palm oil structure via chemical interesterification (CIE) involving a rearrangement or exchange of the fatty acids on the glycerol backbone of the triacylglycerol molecule of palm oil was the aim of this research. Herein, the refined, bleached, and deodourised palm oil (RBDPO) mixed with methyl oleate (MO, C18:1) at 50/50 (w/w) were used as feedstocks for CIE process. The reaction was fed into the reactor and the reaction was conducted in the presence of sodium methoxide (NaOCH3) 0.5 wt% based on the feedstock content) at 70-110 ºC for 0.5-1.5 h. The content of triacylglycerol with the carbon number of C54 (TAG-C54) was enhanced from 5.29% in feedstocks to 16.82% when the CIE was conducted at 110 ºC for 1.5 h. The product with high TAG-C54 content could be used as an alternative in bio-transformer oil production

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Created: 2024

Modified: 2025-03-06

Issued: 2025-03-06

BibliograpyCitation : In Thai Institute of Chemical Engineering and Applied Chemistry. The 33st Thai Institute of Chemical Engineering and Applied Chemistry International Conference (TIChE 2024) (pp.273-280). Bangkok : Thai Institute of Chemical Engineering And Applied Chemistry

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