The effect of NaOH catalyst concentration and extraction time on the yield and properties of Citrullus vulgaris seed oil as a potential biodiesel feed stock

dc.contributor.authorEfavi, J.K.
dc.contributor.authorKanbogtah, D.
dc.contributor.authorApalangya, V.
dc.contributor.authorNyankson, E.
dc.contributor.authorTiburu, E.K.
dc.contributor.authorDodoo-Arhin, D.
dc.contributor.authorOnwona-Agyeman, B.
dc.contributor.authorYaya, A.
dc.date.accessioned2019-02-04T13:00:40Z
dc.date.available2019-02-04T13:00:40Z
dc.date.issued2018-03
dc.description.abstractIn this work, oil was extracted from Citrullus vulgaris (watermelon) seeds for potential feedstock in biodiesel production. The results showed that, the oil content from Citrullus vulgaris seeds oil during extraction reached an average yield of 50%. Biodiesel was produced via transesterification using NaOH as catalyst. The effect of NaOH on the yield of the biodiesel was investigated at three different concentrations; 0.13, 0.15 and 0.18 g and oil to methanol ratio of 5:1 under different reaction times; 90, 120 and 150 min at 60 °C. The yield of biodiesel from NaOH concentration of 0.13 g was found to be 70% as compared to those of concentrations, 0.15 g and 0.18 g which were 53% and 49% respectively. Gas chromatography was used to identify the methyl ester groups present in the biodiesel and the results revealed both concentration and time-dependent increase in oil yield. The physicochemical properties of the watermelon seed oil such as flash point (141.3 ± 0.4–143.4 ± 0.2), density (0.86 ± 0.04–0.91 ± 0.01 g/cm3), kinematic viscosity (30.50 ± 0.1–31.20 ± 0.04 mm2/s) and acid value (mg KOH/g) are similar to conventional vegetable oils. This work therefore, highlights the potential utility of water melon seeds for biodiesel production. © 2018 The Authorsen_US
dc.identifier.otherhttps://doi.org/10.1016/j.sajce.2018.03.002
dc.identifier.otherVolume 25,Pages 98-102
dc.identifier.urihttp://ugspace.ug.edu.gh/handle/123456789/27212
dc.language.isoenen_US
dc.publisherSouth African Journal of Chemical Engineeringen_US
dc.subjectCatalysten_US
dc.subjectCitrullus vulgarisen_US
dc.subjectGas chromatographyen_US
dc.titleThe effect of NaOH catalyst concentration and extraction time on the yield and properties of Citrullus vulgaris seed oil as a potential biodiesel feed stocken_US
dc.typeArticleen_US

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