Production and Characterization of Biodiesel from Prunus amygdalus “dulcis” Seed Oil

Omolara Olusola Oluwaniyi¹ , Ibrahim Opeyemi Oloruntele² , Oladapo Bashir Olaniyi³ , Hauwa Adenike Sekoni⁴ , Muhammad Ibrahim Hamza⁵

Section:Research Paper, Product Type: Journal-Paper
Vol.10 , Issue.4 , pp.24-31, Aug-2023

Online published on Aug 31, 2023

Copyright © Omolara Olusola Oluwaniyi, Ibrahim Opeyemi Oloruntele, Oladapo Bashir Olaniyi, Hauwa Adenike Sekoni, Muhammad Ibrahim Hamza . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
In biodiesel production, the cost of feedstock accounts for the largest percentage of the production cost and there is a food-fuel strain on the utilisation of traditional oils (groundnut oil, palm oil and palm kernel oil) as feedstock. Hence, the use of under-utilised and less expensive feedstock provides a unique opportunity of significantly reducing such cost and strain. This research investigates the use of sweet almond (Prunus amygdalus “dulcis”) seed oil as alternative feedstock for the production of biodiesel. The sweet almond seed oil was extracted via the solvent extraction method and trans-esterified using methanol with sulphuric acid as catalyst. The sweet almond seed has high oil yield (50%). The extracted oil has a specific gravity of 0.97 and low peroxide value (10.25±0.1 mMol/Kg) which are indications that it was of good quality. The fatty acid content of the seed oil revealed 61.62% of oleic acid predominantly present. Other fatty acids present are, linoleic acid (27.36%), palmitic acid (8.66%), palmitoleic acid (1.68%) and icosanoic acid (0.69%). The fatty acids composition shows a very high percentage (63.30%) of monounsaturated fatty acid in the extracted oil which makes it a good feedstock for biodiesel production. In the research, 83% biodiesel yield was achieved. The fuel properties of biodiesel prepared were also determined using standard test methods and were found to be within the ASTM and EN. Hence, Sweet almond seed oil can be a good dependable feedstock for biodiesel production.

Key-Words / Index Term :
Prunus amygdalus, biodiesel, seed oils, fatty acids, physicochemical, almond

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