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Title: Suitability of Transesterified Mahua (Madhuca indica) Oil as Diesel Fuel
Authors: Prajapati, K P
Shilpkar, P
Shah, M C
Keywords: Mahua;Diesel Fuel;Alternative Fuel;Biodiesel
Issue Date: Sep-2015
Publisher: NISCAIR-CSIR, India
Abstract: Biodiesel is an attractive alternative fuel to diesel engines because it is renewable and non-polluted fuel that can be produced from plant and animal fats. The plant and animal fats derived oil can be used as biodiesel either solely or its blending with diesel. Further, it can be used in either extracted form or after transesterification. Madhuca indica fruit oil was evaluated in this study to find out its suitability to be used as biodiesel. The oil was extracted from Madhuca indica fruits using diethyl ether and ethanol (3:1) by centrifugation method. Extracted oil was divided into three equal parts. One part of oil was blended with 5% diesel, second part was transesterified to produce methyl esters and the third part was kept as such. All the three parts of oil were evaluated and compared for their suitability to use as biodiesel on the basis of various physico-chemical parameters. Content of specific gravity, iodine value, free fatty acids, and kinematic viscosity were found lower than the upper limits prescribed by ASTM (American Standards for Testing of Materials) and EN (European Standards) in decreasing order of pure oil>transesterified oil>blended oil, pure oil>blended oil>transesterified oil, pure oil>blended oil>transesterified oil, and pure oil>blended oil>transesterified oil, respectively. Content of sulfur and acid value were higher in all the three types of oil than the upper limit prescribed by ASTM and EN. Cetane number and flash point of transesterified oil were within the limits of ASTM and EN whereas their values were below the standard limits in blended oil and higher in pure oil for flash point. No standards has been given by ASTM and EN for saponification number, ethanol content and cloud point and they follow the decreasing trend of pure oil>blended oil>transesterified oil for saponification number and cloud point and blended oil>transesterified oil>pure oil for ethanol content.
Page(s): 494-498
ISSN: 0975-1084 (Online); 0022-4456 (Print)
Appears in Collections: JSIR Vol.74(09) [September 2015]

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