Steam deacidification of high free fatty acid in Jatropha oil for biodiesel production

Simple item page
dc.contributor.authorTemu, Abraham K.
dc.contributor.authorKombe, Godlisten G.
dc.date.accessioned2020-03-13T09:57:28Z
dc.date.available2020-03-13T09:57:28Z
dc.date.issued2017
dc.descriptionAbstract. Full Text available at: https://pubs.acs.org/doi/abs/10.1021/acs.energyfuels.7b00700en_US
dc.description.abstractAlthough non-edible oil feedstocks are available at a lower price than edible oil feedstocks, their high free fatty acid (FFA) content hinders their direct utilization in the production of biodiesel by alkali-catalyzed transesterification. In this study, the steam deacidification process has been employed in reducing the FFA of crude Jatropha oil before alkali-catalyzed transesterification. The response surface methodology (RSM) established on the central composite design (CCD) was used to model and optimize the steam deacidification efficiency under two process variables, namely, temperature and amount of steam. The optimum conditions for deacidification efficiency of 98.74% were found to be the temperature of 235 °C and the amount of steam of 3.4% (w/w) of the feedstock. These conditions reduce the high FFA of crude Jatropha oil from 4.54 to 0.09%, which is below 1% recommended for base-catalyzed transesterification. The deacidified crude Jatropha oil was then transesterified using a homogeneous base catalyst and gave a conversion of 97.45%. The tested fuel properties of biodiesel, such as viscosity at 40 °C, acid value, gross calorific value, iodine value, fatty acid methyl ester (FAME) content, and density at 15 °C, were found to be comparable to those of ASTM D6751 and EN 14214 standards.en_US
dc.identifier.citationKombe, G. G., & Temu, A. K. (2017). Steam deacidification of high free fatty acid in Jatropha oil for biodiesel production. Energy & Fuels, 31(6), 6206-6210.en_US
dc.identifier.otherhttps://doi.org/10.1021/acs.energyfuels.7b00700
dc.identifier.urihttp://hdl.handle.net/20.500.12661/2172
dc.language.isoenen_US
dc.publisherACS Publicationsen_US
dc.subjectOil feedstocksen_US
dc.subjectHigh free fatty aciden_US
dc.subjectFFAen_US
dc.subjectFree fatty aciden_US
dc.subjectBiodieselen_US
dc.subjectSteam deacidificationen_US
dc.subjectBiodiesel productionen_US
dc.subjectBiodiesel wateren_US
dc.subjectSeparation scienceen_US
dc.subjectTransesterificationen_US
dc.titleSteam deacidification of high free fatty acid in Jatropha oil for biodiesel productionen_US
dc.typeArticleen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
TEMU.pdf
Size:
146.3 KB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Journal Articles