The Ethanolosis of Pongamia pinnata Oil by a Two-stage Acid-base Catalyst Transesterification Process for Production of Biodiesel

Godugula, V and Srinivas, I (2012) The Ethanolosis of Pongamia pinnata Oil by a Two-stage Acid-base Catalyst Transesterification Process for Production of Biodiesel. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 34 (16). pp. 1550-1558. ISSN 1556-7036

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Abstract

To standardize the production process of ethyl ester from Pongamia oil, which has high free fatty acids, a two-stage transesterification was developed. In first-stage acid transesterification, parameters like ethanol, quantity, and reaction time were optimized to reduce free fatty acids below 1% using H2SO4 catalyst. In second-stage alkaline transesterification, parameters like molar ratio, degree proof of ethanol, catalyst concentration, and reaction temperature were optimized to obtain the highest yield with lower viscosity from pretreated oil. The ester recovery was estimated with spectrophotometry and was found to be 91%. The fuel characteristic properties of Pongamia ethyl ester were inline with specified BIS standards.

Item Type:	Article
Divisions:	UNSPECIFIED
CRP:	UNSPECIFIED
Uncontrolled Keywords:	ethyl esters, free fatty acids, fuel characteristic properties, Pongamia oil, transesterification
Subjects:	Others > Oilseeds Others > Agriculture-Farming, Production, Technology, Economics
Depositing User:	Mr Siva Shankar
Date Deposited:	02 Aug 2012 10:04
Last Modified:	02 Aug 2012 10:04
URI:	http://oar.icrisat.org/id/eprint/6056
Official URL:	http://dx.doi.org/10.1080/15567036.2010.483454
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	UNSPECIFIED
Links:	Author

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