Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/22139

TitleOptimization of pretreatment of jatropha oil with high free fatty acids for biodiesel production
Author(s)Suwito, Supriyono
Dragone, Giuliano
Sulistyo, Hary
Murachman, Bardi
Purwono, Suryo
Teixeira, J. A.
KeywordsBiodiesel
Biofuel
Esterification
Free fatty acids
Jatropha curcas oil
Issue date2012
PublisherSp Higher Education Press
JournalFrontiers of Chemical Science and Engineering
Abstract(s)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 coefficient 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 transesterification using an alkaline catalyst.
TypeArticle
URIhttp://hdl.handle.net/1822/22139
DOI10.1007/s11705-012-1282-5
ISSN2095-0179
Other identifiers2095-0187
Peer-Reviewedyes
AccessOpen access
Appears in Collections:CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series

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