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Ultrasonic-Assisted Preparation of Biodiesel Products from Vegetable Oils

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Biodiesel from uncommon fatty acids.

José Domingos Fontana¹

¹Biomass Chemo/Biotechnology Laboratory, Dept. of Pharmacy, UFPR, Federal University of Paraná, Curitiba-PR (80210-170), Brazil. jfontana@ufpr.br

Journal of Chromatographic Science

|October 20, 2009

Summary

Ethyl esters from uncommon fatty acids were synthesized and analyzed for biofuel potential. These compounds exhibit pleasant odors and notable resistance to clouding, suggesting promising commercial applications.

Area of Science:

Organic Chemistry
Chemical Engineering
Materials Science

Background:

Fatty acid ethyl esters are key biofuel components.
Exploring novel feedstocks like uncommon fatty acids is crucial for sustainable energy.
Valproic, azelaic, and sorbic acids represent underutilized sources for ester synthesis.

Purpose of the Study:

To synthesize and characterize ethyl esters from valproic, azelaic, and sorbic acids.
To evaluate the physicochemical properties of these novel esters.
To assess their potential as biofuels and for other industrial applications.

Main Methods:

Chemical synthesis of ethyl esters.
Identification using gas chromatography-mass spectrometry (GC-MS) and liquid chromatography-mass spectrometry (LC-MS).

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Evaluation of properties including odor, cloud point, and crystallization behavior.

Main Results:

Successful synthesis and identification of ethyl esters from valproic, azelaic, and sorbic acids.
Esters possess remarkable and pleasant odors.
Ethyl ester of valproic acid shows significant resistance to clouding and crystallization.

Conclusions:

Ethyl esters from uncommon fatty acids are viable candidates for biofuel development.
Their unique properties, such as pleasant aroma and cold flow resistance, open avenues for diverse commercial uses.
Further research into these esters could lead to novel applications in fuels and specialty chemicals.