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https://doi.org/10.37358/Rev.Chim.1949

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Revista de Chimie (Rev. Chim.), Year 2010, Volume 61, Issue 9,





Mihaela Gabriela Dumitru (BiTA), DoiniTa Ramona Grecu, DragoS Tutunea, Alexandru Popescu, Marin Bica
Physico-chemical Changes in Biodiesel during the Storage

Abstract:

Biodiesel is a natural fuel obtained following the transesterification reaction of the triglycerides of fatty acids from fats in alkaline catalyse.The period of storage represents a main factor in the change of quality of biodiesel. The purpose of this work is to establish the change of the main qualitative indexes of biodiesel obtained from sun-flower oil during the storage (Index of iodine, Index of acidity, Index of refraction, Index of saponification, Cetane number and Disorder point). The obtained values of these parametres lead to the conclusion that after 12 months of storage the biodiesel does not present anymore useful qualities. The chromatographic analysis of the biodiesel tests in the beginning and in the end of the experiment points out their compositional changes. Key words: biodiesel, oxidation, qualitative indexes


Issue: 2010, Volume 61, Issue 9
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