Focke, WWVan der Westhuizen, ILofté Grobler, ABNshoane, KTReddy, JKLuyt, AS2012-07-132012-07-132012-04Focke, WW, Van der Westhuizen, I, Lofté Grobler, AB, Nshoane, KT, Reddy, JK and Luyt, AS. 2012. The effect of synthetic antioxidants on the oxidative stability of biodiesel. Fuel, vol. 94, pp 227-2330016-2361http://www.sciencedirect.com/science/article/pii/S0016236111007757http://hdl.handle.net/10204/5996Copyright: 2011 Elsevier. This is the pre-print version of the work. The definitive version is published in Fuel, vol. 94, pp 227-233Biodiesels were prepared using base catalyzed methanolysis of sunflower, soybean and canola oils. Rancimat oxidative stability measurements showed that the induction period (IP) for neat canola biodiesel conformed to EN 14214, the European specification for biodiesel (IP > 6 h). Stability was enhanced when 0.5 wt. % of the synthetic anti-oxidants di-tertbutylhydroquinone (DTBHQ) or poly(1,2-dihydro-2,2,4-trimethylquinoline) (Orox PK) was added. Soybean-based biodiesel spiked with 0.5 wt. % DTBHQ also reached this specification. Orox PK improved the stability of sunflower biodiesel but the 3 h induction period specified by ASTM D-6751 could not be reached. Curiously, canola biodiesel was destabilized on adding the antioxidant Naugard P (tris(nonylphenyl) phosphate).enAnti-oxidantsBiodieselOxidation induction timeOxidative stabilityRancimat methodArticleFocke, W., Van der Westhuizen, I., Lofté Grobler, A., Nshoane, K., Reddy, J., & Luyt, A. (2012). The effect of synthetic antioxidants on the oxidative stability of biodiesel. http://hdl.handle.net/10204/5996Focke, WW, I Van der Westhuizen, AB Lofté Grobler, KT Nshoane, JK Reddy, and AS Luyt "The effect of synthetic antioxidants on the oxidative stability of biodiesel." (2012) http://hdl.handle.net/10204/5996Focke W, Van der Westhuizen I, Lofté Grobler A, Nshoane K, Reddy J, Luyt A. The effect of synthetic antioxidants on the oxidative stability of biodiesel. 2012; http://hdl.handle.net/10204/5996.TY - Article AU - Focke, WW AU - Van der Westhuizen, I AU - Lofté Grobler, AB AU - Nshoane, KT AU - Reddy, JK AU - Luyt, AS AB - Biodiesels were prepared using base catalyzed methanolysis of sunflower, soybean and canola oils. Rancimat oxidative stability measurements showed that the induction period (IP) for neat canola biodiesel conformed to EN 14214, the European specification for biodiesel (IP > 6 h). Stability was enhanced when 0.5 wt. % of the synthetic anti-oxidants di-tertbutylhydroquinone (DTBHQ) or poly(1,2-dihydro-2,2,4-trimethylquinoline) (Orox PK) was added. Soybean-based biodiesel spiked with 0.5 wt. % DTBHQ also reached this specification. Orox PK improved the stability of sunflower biodiesel but the 3 h induction period specified by ASTM D-6751 could not be reached. Curiously, canola biodiesel was destabilized on adding the antioxidant Naugard P (tris(nonylphenyl) phosphate). DA - 2012-04 DB - ResearchSpace DP - CSIR KW - Anti-oxidants KW - Biodiesel KW - Oxidation induction time KW - Oxidative stability KW - Rancimat method LK - https://researchspace.csir.co.za PY - 2012 SM - 0016-2361 T1 - The effect of synthetic antioxidants on the oxidative stability of biodiesel TI - The effect of synthetic antioxidants on the oxidative stability of biodiesel UR - http://hdl.handle.net/10204/5996 ER -