Aminul Islam and Yap, Taufiq Yun Hin and Pogaku, Ravindra and Chan, Eng Seng and Chu, Chi Ming (2013) Transesterification of palm oil using KF and NaNO3 catalysts supported onspherical millimetric γ-Al2O3. Renewable Energy, 59. pp. 23-29. ISSN 0960-1481
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Transesterification of palm oil using KF and NaNO3 catalysts supported on spherical millimetric γ-Al2O3.pdf Download (1MB) | Preview |
Abstract
The use of spherical millimetric gamma-alumina (γ-Al2O3) as a catalyst support for the production of biodiesel from palm oil is demonstrated. The catalyst support was produced using a dripping method, and KF and NaNO3 catalysts were loaded on the support using the impregnation method. X-ray diffraction (XRD) analysis showed the formation of Na2O and NaAlO2 phases on the NaNO3/γ-Al2O3 catalyst and the formation of K2O and KAlF4 on the KF/γ-Al2O3 catalyst, which were possibly the active sites for the transesterification reaction. The highest number and strength of basic sites generated from the solid phase reaction of the KF/γ-Al2O3 catalyst loaded with 0.24g kF/g γ-Al2O3 and the NaNO3/γ-Al2O3 catalyst loaded with 0.30g NaNO3/g γ-Al2O3 were confirmed by temperature programmed desorption of CO2 (CO2-TPD) analysis. The nitrogen adsorption-desorption isotherms also revealed a mesoporous structure of the catalysts. The biodiesel yield was comparable to that produced from smaller catalysts, and this result indicated the potential of the macrospherical catalysts
| Item Type: | Article |
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| Keyword: | gamma-alumina, transesterification, biodiesel, heterogenous catalyst,potassium fluoride, sodium nitrate |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
| Department: | SCHOOL > School of Engineering and Information Technology |
| Depositing User: | SITI AZIZAH BINTI IDRIS - |
| Date Deposited: | 19 Aug 2013 11:18 |
| Last Modified: | 10 Jan 2022 15:45 |
| URI: | https://eprints.ums.edu.my/id/eprint/6743 |
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