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Screening and Kinetic study of in situ Epoxidation Methyl Ester Jatropha Curcas Oil as Biolubricant Precursor

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Main Author: Lim, Gim Pao
Other Authors: Rozaini Abdullah
Format: Learning Object
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2013
Subjects:
Vegetable oil
Jatropha Curcas
Methyl Ester Oil
Biolubricant Precursor
Jatropha curcas seed oil (JCO)
Online Access:http://dspace.unimap.edu.my/xmlui/handle/123456789/27739
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spelling my.unimap-277392013-08-27T08:53:58Z Screening and Kinetic study of in situ Epoxidation Methyl Ester Jatropha Curcas Oil as Biolubricant Precursor Lim, Gim Pao Rozaini Abdullah Vegetable oil Jatropha Curcas Methyl Ester Oil Biolubricant Precursor Jatropha curcas seed oil (JCO) Access is limited to UniMAP community. The methyl ester of Jatropha curcas seed oil (JCO) with iodine value of 98.136 I2/100g, and the dominant fatty acid of methyl ester Jatropha curcas seed oil are oleic acid 46 % and linoleic acid 32 % was determined by gas chromatography. These fatty acids were undergoing epoxidation by peroxyformic acid generated in situ in the presence of concentrated sulphuric acid. The effect of molar ratios of hydrogen peroxide (1.5 mol to 3.0 mol) to the unsaturation fatty acid of methyl ester JCO, the molar ratio of formic acid (0.5 mol to 1.5 mol) to double bond of methyl ester JCO and reaction time (2 hours to 6 hours) were established by using two level factorial design. It was found that those major parameters that contribute highest impact of the formation of epoxy methyl ester are the molar ratio of hydrogen peroxide and formic acid. Fourier transforms infra red spectrum showed the presence of oxygen peak at 698.5 cm-1. In addition, the kinetic studied of epoxidation methyl ester JCO by generated in situ from peroxyformic acid in the presence of homogeneous catalysts and organic solvent diluents at 40 oC, 65 oC and 80 oC was investigated. The rate constants for in situ epoxidation of methyl ester JCO by peroxyformic acids in toluene in the range of 0.43–0.89 hr-1 and activation energies was obtained 19.103 KJ.mol−1. Finally, thermodynamic parameter such as entropy, enthalpy, and free energy of activation energy were found to be 3.89 kcal/mol, -78.0326 cal/mol and 30.264 kcal/mol respectively. It can be concluded that methyl ester JCO has potential to be used produce epoxy methyl ester JCO to be used as a starting feedstock for biolubricant. 2013-08-27T08:53:58Z 2013-08-27T08:53:58Z 2012-06 Learning Object http://hdl.handle.net/123456789/27739 en Universiti Malaysia Perlis (UniMAP) School of Bioprocess Engineering
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Vegetable oil
Jatropha Curcas
Methyl Ester Oil
Biolubricant Precursor
Jatropha curcas seed oil (JCO)
spellingShingle Vegetable oil
Jatropha Curcas
Methyl Ester Oil
Biolubricant Precursor
Jatropha curcas seed oil (JCO)
Lim, Gim Pao
Screening and Kinetic study of in situ Epoxidation Methyl Ester Jatropha Curcas Oil as Biolubricant Precursor
description Access is limited to UniMAP community.
author2 Rozaini Abdullah
author_facet Rozaini Abdullah
Lim, Gim Pao
format Learning Object
author Lim, Gim Pao
author_sort Lim, Gim Pao
title Screening and Kinetic study of in situ Epoxidation Methyl Ester Jatropha Curcas Oil as Biolubricant Precursor
title_short Screening and Kinetic study of in situ Epoxidation Methyl Ester Jatropha Curcas Oil as Biolubricant Precursor
title_full Screening and Kinetic study of in situ Epoxidation Methyl Ester Jatropha Curcas Oil as Biolubricant Precursor
title_fullStr Screening and Kinetic study of in situ Epoxidation Methyl Ester Jatropha Curcas Oil as Biolubricant Precursor
title_full_unstemmed Screening and Kinetic study of in situ Epoxidation Methyl Ester Jatropha Curcas Oil as Biolubricant Precursor
title_sort screening and kinetic study of in situ epoxidation methyl ester jatropha curcas oil as biolubricant precursor
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2013
url http://dspace.unimap.edu.my/xmlui/handle/123456789/27739
_version_ 1643795392405438464
score 13.222552

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