Fuel Properties and Their Correlations with Fatty Acids Structures of Methyl- and Butyl-Esters of Afzelia africana, Cucurbita pepo and Hura crepitans Seed Oils
- 159 Downloads
Properties of biodiesels are determined by the structural features of the fatty acids and the alcohol used for the transesterification. With accurate knowledge of the influence of the molecular structures on the biodiesel properties, the composition of oils and alcohol can both be selected to give biodiesel of optimal performance. A study was carried out to investigate the fuel properties of methyl esters, butyl esters and esters/diesel blends of Cucurbita pepo, Afzelia africana and Hura crepitans seed oils. The correlations between the fatty acids structures and the fuel properties were evaluated and they provided vital information that will enable formulation of optimal biodiesel blends from the oil crops. Both methyl esters and butyl esters of the feedstocks exhibited good fuel properties and compared very well with petroleum diesel and can be used as alternative fuel.
KeywordsMethyl esters Butyl esters Seed oils Blending Fuel properties Correlations
The authors are grateful to the Department of Pure and Industrial Chemistry, Nnamdi Azikiwe University, Awka, Nigeria, for their research laboratory facilities and also to O.A, Oje of Federal University Ndufu-Alike Ikwo for his assistance in statistical analyses of the data.
- 5.Royal Society: Sustainable Biofuels: Prospects and Challenges, Policy Document, pp. 1–90. the Royal Society, London (2008)Google Scholar
- 13.Igwenyi, I.O., Offor, C.E., Aja, P.M., Aloh, G.S., Orji, O.U., Ugwu, O.O.: Potentials of Afzelia africana vegetable oil in biodiesel production. Prog. Renew. Energ. 1, 8–14 (2011)Google Scholar
- 14.Ajiwe, V.I.E., Nsionu, C.A., Enukora E.A.O.: Possible biofuels from broad leave pumpkin (Curcubita pepo) seed oil. In: Proceedings of the NASEF’ 06 International Conference, Awka, Solar Energy Society of Nigeria, pp. 178–182 (2006)Google Scholar
- 23.Vidrih, R., Vidakovič, S., Abramovič, H.: Biochemical parameters and oxidative resistance to thermal treatment of refined and unrefined vegetable edible oils. Czech J. Food Sci. 28, 376–384 (2010)Google Scholar
- 25.Galadima, A., Garba, Z.N.: Catalytic synthesis of ethyl ester from some common oils. Sci. World J. 4(4), 1–4 (2009)Google Scholar
- 29.Wu, M., Wu, G., Han, L., Wang, J.: Low-temperature fluidity of bio-diesel fuel prepared from edible vegetable oil. Petrol Process Petrochem. 36, 57–60 (2005)Google Scholar
- 33.Chevron.: Diesel Fuels Technical Review. Chevron products company, San Ramon, pp. 1–20 (2007)Google Scholar