Determination of Diesel Index of biodiesel fuel Produced from Fatty Acid Ethyl Ester Composition by ASTM D-611
Subject Areas : Water and EnvironmentSaleh Mohamadi 1 , Bahman Najafi 2
1 - MSc in mechanics of Aagricultural machinery, Department of Mechanics of Agricultural Machinery,
University of Mohaghegh ardabili.
2 - Aassistant professor. of mechanics of agricultural machinery, Department of Mechanics of Agricultural
Machinery,University of mohaghegh ardabili.
Keywords: Biodiesel, Fatty Acid Ethyl Ester, Diesel index, API degree,
Abstract :
Introduction: One of the quality parameters of combustion is Diesel index (DI) that Indicating thedegree and quality of diesel fuel. One of the methods that can be measured this parameter withoutspending too much time is the ASTM D 611 standard.Material and Methods: In this study to produce biodiesel fuel was used ethanol and bytransesterification method from seven kinds of vegetable oils (corn, soybean, rice bran, grape seed,olive, sunflower and rapeseed) method was used. In order to get the diesel index, determination ofaniline point and the API degree is required. Therefor Aniline point was evaluated by ASTM D611-04.Results and Discussion: The results showed that the values of index of diesel fuels produced formfrom Fatty Acid Ethyl Ester Composition are in 38-45 range. While the DI value of diesel fuel is51.56. Also, the results presented that the low values of density of biodiesel fuels is reduced thedegree of API.
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