Uticaj fizičko-hemijskih karakteristika biljnih ulja na kvalitet biodizela / Influence physical and chemical properties of vegetable oil on biodiesel quality
2012
Tomić, M. (Poljoprivredni fakultet, Novi Sad (Srbija). Departman za poljoprivrednu tehniku) | Furman, T. (Poljoprivredni fakultet, Novi Sad (Srbija). Departman za poljoprivrednu tehniku) | Mićić, R. (NIS Gasprom, Novi Sad (Srbija). Rafinerija Novi Sad) | Savin, L. (Poljoprivredni fakultet, Novi Sad (Srbija). Departman za poljoprivrednu tehniku) | Simikić, M. (Poljoprivredni fakultet, Novi Sad (Srbija). Departman za poljoprivrednu tehniku) | Nikolić, R. (Poljoprivredni fakultet, Novi Sad (Srbija). Departman za poljoprivrednu tehniku)
Rapid growth in the energy consumption has conditioned the need for discovering the alternative energy resources which would be adapted to the existing engine constructions and which would satisfy the additional criteria related to the renewability, ecology and reliability of use. Introduction of biodiesel has been the focus of attention over the last ten years. This paper presents a complete characterization of rapeseed oil (of Kata variety), sunflower oil (of Somborac variety) and soy oil (of Zlata variety), as well as the potential use of oil generated after filtering, in order to obtain biodiesel. Transesterification was carried out in batch reactor Parr 4520, with KOH as a catalyst. The results of this research indicate that besides the wide range of advantages there are also certain restrictions regarding the use of biodiesel. Studies have shown that the methyl ester content, density and kinematic viscosity of biodiesel all three materials in accordance with the requirements set forth SRPS EN 14214. Distillation characteristics of all three samples is that point more difficult to cold start using biodiesel. The lower temperature the end of the distillation of biodiesel compared to fossil diesel provides him complete combustion, thus reducing emissions. The high content of polyunsaturated fatty acids (linoleic and linolenic acid) in biodiesel produced from soybean and sunflower affects the amount of cetane number and oxidation stability, but improves lubricity. The yield of biodiesel produced from rapeseed, sunflower and soybean was 82.3, 89.1 and 85.4% respectively.
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