Production of Epoxidized Zigba (Podo Carpus Falcatus) Seed Oil Through Carbon Based Sulfonated Catalyst
| dc.contributor.advisor | Anteneh, Marelign (PhD) | |
| dc.contributor.author | Ysacor, Mengistu | |
| dc.date.accessioned | 2020-03-08T09:38:25Z | |
| dc.date.accessioned | 2023-11-10T14:54:35Z | |
| dc.date.available | 2020-03-08T09:38:25Z | |
| dc.date.available | 2023-11-10T14:54:35Z | |
| dc.date.issued | 2019-06 | |
| dc.description.abstract | Epoxidation is reaction of the carbon–carbon double bond of fatty acids of vegetable oils. Recent environmental awareness and reduction of world fossil fuel reserves have enforced the need to look for a replacement of mineral oils with environmental friendly and nontoxic vegetable base oils such as epoxy oil. In this study epoxy oil was produced from seed oil using locally available raw material, podo carpus falcatus (‘zigba’) by carbon-based sulfonated catalyst. This bio-based catalyst was used for epoxidation reactions of podo carpus falcatus seed oil and the study was undertaken by preparing both carbon-based acid catalyst from rice husk at carbonization temperatures (400, 500, 600 ℃) and extraction of vegetable oil from podo carpus falcatus seed. The prepared sulfonated solid acid catalysts were characterized using: bulk density, total acid density, elemental analysis (CNHS), absorbance for methyl orange solution, and (Fourier Transform Infrared Spectroscopy) FT-IR. Based on the above characterization, the catalyst prepared from rice husk at temperature of 600 ℃ was selected for further investigation for epoxidation reaction of podo carpus falcatus seed oil. Podo carpus falcatus seed oil and epoxidized podo carpus seed oil were characterized by acid value (4 mmol KOH/l), Iodine value (121 g/100 g of I2), Gas Chromatography Mass Spectroscopy (GC-MS), FT-IR, Nuclear Magnetic Resonance (NMR) and including other physical properties (density, specific gravity, and kinematic viscosity).The epoxidation reaction experiment was performed at reaction temperatures of 65, 75 and 85 ℃, hydrogen peroxide to the podo carpus falcatus seed oil with molar ratio of 1.5 :1, 2.5:1 and 3.5:1, acetic acid to podo carpus falcatus seed oil molar ratio 0.5:1 and reaction times of 2, 4, and 6 hours. The optimal value of oxirane oxygen content 3.788 % was obtained at 71.89 °C reaction temperature, in 5.1 hours reaction time, and 1.94:1 hydrogen peroxide to oil molar ratio. The relative conversion of double bond was 90.89%. Epoxidized podo carpus falcatus prepared from podo carpus falcatus seed have a good physiochemical and functional properties for epoxidized podo carpus production. and the carbon-based sulfonated catalyst works successfully for epoxidation of podo carpus falcatus seed oil. | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/12345678/21010 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | Addis Ababa University | en_US |
| dc.subject | Epoxidation | en_US |
| dc.subject | Rice husk | en_US |
| dc.subject | podo carpus falcatus seed oil | en_US |
| dc.subject | sulfonated solid acid catalyst | en_US |
| dc.subject | oxirane oxygen content | en_US |
| dc.title | Production of Epoxidized Zigba (Podo Carpus Falcatus) Seed Oil Through Carbon Based Sulfonated Catalyst | en_US |
| dc.type | Thesis | en_US |