Citation
Robiah Yunus, . and Hairunizam Hadithon, . and Lee Chin Moi, . (1995) Adsorption of free fatty acids from crude palm oil using rice husk ash. [Proceedings Paper]
Abstract
The application of rice husk ash in edible oil refining has attracted interests among researchers due to the abundance of rice husk in this country. In this study several experiments have been conducted to investigate the performance of rice husk ash in removing free fatty acids FFA from the crude palm oil. The partially combusted rice husk was combusted at 500 celcius in the muffle furnace for 10 hours. The results demonstrated that the rice husk ash was effective in removing up to 0.5 FFA per gram ash and the efficiency declined with dosage. Acid activation and high temperature were found to decrease the FFA adsorption while the addition of isopropanol to the ash increased the adsorption. The rice husk ash may be recycled after eluting the FFA from the ash. Up to three cycles of adsorption-desorption process were achieved without appreciable reduction in efficiency. The recovery of 67 of FFA adsorbed was recorded.
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Abstract
The application of rice husk ash in edible oil refining has attracted interests among researchers due to the abundance of rice husk in this country. In this study several experiments have been conducted to investigate the performance of rice husk ash in removing free fatty acids FFA from the crude palm oil. The partially combusted rice husk was combusted at 500 celcius in the muffle furnace for 10 hours. The results demonstrated that the rice husk ash was effective in removing up to 0.5 FFA per gram ash and the efficiency declined with dosage. Acid activation and high temperature were found to decrease the FFA adsorption while the addition of isopropanol to the ash increased the adsorption. The rice husk ash may be recycled after eluting the FFA from the ash. Up to three cycles of adsorption-desorption process were achieved without appreciable reduction in efficiency. The recovery of 67 of FFA adsorbed was recorded.
Additional Metadata
| Item Type: | Proceedings Paper |
|---|---|
| AGROVOC Term: | FATTY ACIDS |
| AGROVOC Term: | PETROLEUM |
| AGROVOC Term: | RICE HUSKS |
| AGROVOC Term: | FRAXINUS |
| AGROVOC Term: | PALM OILS |
| AGROVOC Term: | FREE FATTY ACIDS |
| AGROVOC Term: | CRUDE FAT |
| AGROVOC Term: | RICE HUSKS |
| AGROVOC Term: | FRAXINUS |
| AGROVOC Term: | PERFORMANCE TESTING |
| Geographical Term: | MALAYSIA |
| Depositing User: | Ms. Suzila Mohamad Kasim |
| Last Modified: | 24 Apr 2025 05:13 |
| URI: | http://webagris.upm.edu.my/id/eprint/11191 |
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