Optimization of pretreatment of Jatropha oil with high free fatty acids for biodiesel production

Supriyono, .supriyono and Hary, Sulistyo and Suryo, Purwono and Bardi, Murachman and Jose Antonio, Teixira and Giuliano, Dragone (2012) Optimization of pretreatment of Jatropha oil with high free fatty acids for biodiesel production. Frontiers of Chemical Science and Engineering, 6. pp. 210-215. ISSN 2095-0187;2095-0179

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Abstract

Abstract A central composite rotatable design and response surface methodology were used in order to investigate the individual and combined effects of the ethanol-to-oil ratio, H2SO4 concentration, temperature and time of reaction on the reduction of free fatty acid (FFA) in jatropha oil. A quadratic polynomial model relating the reaction variables with FFA reduction was developed, presenting a good coef!cient of determination (R2= 0.893). For reducing FFA to less than 1%, the optimal combination was found to be 0.62 v$v–1 ethanol-to-oil ratio (14.9 v$v–1 ethanol-to-FFA ratio), 1.7% v$v–1 H2SO4 concentration, and 79 min reaction time at a reaction temperature of 54°C. These results are of great relevance to maximize methyl esters formation by transesteri!cation using an alkaline catalyst.

Item Type:	Article
Subjects:	T Technology > TP Chemical technology
Depositing User:	supriyono .
Date Deposited:	19 Sep 2024 07:39
Last Modified:	19 Sep 2024 07:39
URI:	http://repo.setiabudi.ac.id/id/eprint/6316

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