Related Experiment Video
Updated: Jan 30, 2026

Preparation, Purification, and Use of Fatty Acid-containing Liposomes
Published on: February 9, 2018
Fatty acid from recycled waste cooking oil as a phase-change material for thermal storage systems
Xun Wang1, Yu Fu1, Spenser Washburn2,3
1Leslie A. Rose Department of Mechanical Engineering, South Dakota School of Mines and Technology Rapid City SD 57701 USA Xun.Wang@sdsmt.edu Yu.Fu@sdsmt.edu.
Abstract:
Fatty acids derived from waste cooking oil (WCO) are successfully processed as sustainable phase-change materials (PCMs) for thermal energy storage. This study investigated the conversion of WCO into fatty acid-based PCMs through hydrolysis and hydrogenation, optimizing reaction parameters to enhance thermal properties. A logarithmic model was developed to describe the relationship between hydrogenation time and the adjustment of melting point. The study also examined the correlation between WCO-derived fatty acids (WCOFAs) and their chemical structure, providing insights into optimizing hydrogenation conditions to achieve desired melting points (between 15 °C and 60 °C). The effects of different oil mixtures on thermal characteristics, such as melting point and latent heat, were analyzed to tailor WCOFA-based PCMs for industrial applications. Experimental results indicated that increasing hydrogenation time reduces carbon-carbon double bonds, increasing the melting point and latent heat, with fully hydrogenated WCOFAs exhibiting properties comparable to those of commercial PCMs (∼150 J g-1). This study highlights WCOFAs as cost-effective, environmentally friendly alternatives for thermal energy storage, contributing to sustainable waste management and resource utilization.
More Related Videos
11:08The Use of Gas Chromatography to Analyze Compositional Changes of Fatty Acids in Rat Liver Tissue during Pregnancy
Published on: March 13, 2014
07:25Green and Low-cost Production of Thermally Stable and Carboxylated Cellulose Nanocrystals and Nanofibrils Using Highly Recyclable Dicarboxylic Acids
Published on: January 9, 2017
Related Concept Videos
Overview of Fatty Acid Metabolism
Fatty acids are catabolized in a process called beta-oxidation, which takes place in the matrix of the mitochondria and converts their fatty acid chains into two-carbon units of acetyl groups. The acetyl...
Storage
Phase I Reactions: Oxidation of Aliphatic and Aromatic Carbon-Containing Systems
Oxidation reactions are fundamental in aromatic carbon-containing systems. An example is the hydroxylation of phenobarbital, a process that transforms it into...
Phase I Reactions: Oxidation of Carbon-Heteroatom and Miscellaneous Systems
In carbon-nitrogen systems, aliphatic and aromatic amines can undergo oxidative reactions. Secondary and tertiary amines, like those found in tricyclic antidepressants, can undergo N-dealkylation, a process that involves the oxidation of the alkyl group. In addition, oxidative...
Comparative Excretory Systems
Phase Transitions: Melting and Freezing