Extraction of Vegetable Oil from Avocado Seed for the Production of Biodiesel (Alkyl Ester)

Dagde, Kenneth Kekpugile


The avocado seed was used as a raw material for the production of biodiesel as an alternative to petro-diesel. The oil was extracted using a soxhlet extractor with n-hexane as the solvent and transesterified with methanol (5:1 oil to methanol ratio) using potassium hydroxide as catalyst in 15 minutes reaction time. The percentage yield of the purified biodiesel was 78%. The physical and chemical properties of the biodiesel on comparison to standard biodiesel and petroleum diesel indicated that it is of good quality. It had a relative density of 0.86, cetane number of 62.2, kinematic viscosity of 3.94cst. The economies of this extraction turns avocado seed from bio-waste to wealth.

Keywords: Avocado Seed, Soxhlet extractor, Biodiesel, Oil Characterization, Yield.

DOI: 10.7176/JNSR/9-3-01

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ISSN (Paper)2224-3186 ISSN (Online)2225-0921

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