| dc.description.abstract | The vegetable oil such as Jatropha CUTCas oil with high oleic acid (monounsaturated
fatty acid) content has been demanded as an alternative for mineral oil-based
lubricant due to price fluctuation of petroleum feed stock and high concern of people
about pollution free environment. The study was investigated to screen the blending
process of Jatropha CUTCas oil and waste cooking oil as bio-Iubricant base stock.
Soxblet extraction was used to extract: Jatropha CUTcas oil for 6 homs with different
solvent. Hexane gives the best yield of oil which is 62.3 %. The chemical test include
saponification, iodine, peroxide and acid value which results in 265.32 mglg, 98.136
IzIlOOg, 32.55 meq/kg, 3.74 mg/KOH for lCO and 191.22 mg/g, 21.714 Iz/l00g,
54.05 meqlkg, 0.34 mg/KOH for waste cooking oil respectively. For blending oil
with the highest oleic content, the results for chemical test are 3.06 mg/g, 170.17
1z1l00g, 2.50 meqlkg, and 51.45 mgIKOH. Gas Chromatography (GC) and Fourier
Transform Infm-Red (FTlR) revealed that the dominant fatty acid in lCO, WCO and
new oil blends are palmitic acid, oleic acid and linoleic acid. Two level factorial
designs were used as screening method to obtain result from lCO-WCO blending
process. The parameters involved were waste cooking oil molar ratio, speed of stirrer
and duration of blending. The study publicized the significant parameters of blending
process which were WCO molar ratio and speed of stirrer give significant effect to
the pereentage of oleic acid content in new blending oil. The highest percentage of
oleic acid was found to be 53.31 %. This research exposed the potential of new
blending oil which are comparable with other vegetable and mineral oils as base stock
for bio-Iubricant in term of fatty acid compositions and other physical and chemical
characterizations. | en_US |
