Evaluation of biodiesel storage stability using reference methods

Autor:	Paolo Bondioli, Silvia Tagliabue, Laura Della Bella, Ada Gasparoli
Rok vydání:	2002
Předmět:	chemistry.chemical_classification Biodiesel Materials science food and beverages General Chemistry Polymer Pulp and paper industry complex mixtures Industrial and Manufacturing Engineering Warehouse Diesel fuel chemistry Bioenergy Biofuel sense organs Peroxide value Food Science Biotechnology
Zdroj:	European Journal of Lipid Science and Technology. 104:777-784
ISSN:	1438-9312 1438-7697
DOI:	10.1002/1438-9312(200212)104:12<777::aid-ejlt777>3.0.co;2-#
Popis:	The recorded changes in 8 different samples of biodiesel (from 4 different feedstocks, both undistilled and distilled) during accelerated ageing are shown in this paper. ASTM D 4625 method for quick ageing of common diesel fuels, carried out at 43 °C, allows to simulate the changes taking place in fuel during a long-term storage. All quality parameters of biodiesel are changing during time, according to the storage stability of different samples. The changes in other parameters not included in CEN tentative specification such as polymer content and peroxide value were recorded and plotted against storage time. Samples were also evaluated in terms of insoluble formation (filterable + adherent) but in any case significant insoluble formation was observed. The conclusion was that polymers formed during storage of biodiesel in controlled conditions are soluble in oxidised biodiesel, thanks to its high polarity and become insoluble only when oxidised biodiesel is mixed with diesel fuel.
Databáze:	OpenAIRE
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