Biodiesel from tobacco seed oil. [Prepared M.Sc. thesis] | Biodizel iz ulja semena duvana. [Priredjena magistarska teza]
2008
Lakicevic, S.
In this study, we used whole and pulverized tobacco seed. The extraction was done with the use of unpolarized solvents: n-hexane and petrol ether. For the extraction of tobacco seed oil (Nicotiana tabacum L.) type Otlja, we applied the optimal conditions (seed pulverization, the type of solvent, temperature, extraction technique, seed:solvent ratio). This kind of oil is not suitable for application in diesel engines, and therefore it must be modified by the method of transesterification. For more efficient transesterification, it is recommendable for the oil to contain less than 2% of free fat acids. Tobacco seed oil with a higher content of free fat acids (more than 18%), must undergo the method of esterification of free fat acids first, in order to decrease the content to less than 2%, and after that to the method of base catalyzed transestarification, by which the yield of about 91% of methyl-esters is obtained. Biodiesel obtained in this way has the fuel properties which are within the limits issued by the latest European (DIN EN 14214) standards.
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