Abdulkareem-Alsultan, G. and Asikin-Mijan, N. and Lee, H.V. and Taufiq-Yap, Y.H. (2016) A new route for the synthesis of La-Ca oxide supported on nano activated carbon via vacuum impregnation method for one pot esterification-transesterification reaction. Chemical Engineering Journal, 304. pp. 61-71. ISSN 1385-8947, DOI https://doi.org/10.1016/j.cej.2016.05.116.
Full text not available from this repository.Abstract
Advanced carbon nanorod promoted binary CaO-La2O3 system with improved physical properties, tailored surface morphology and chemistry were developed in vacuum-impregnating methods. The nanostructured catalyst (CaO–La2O3/AC nanocatalyst) was prepared to convert high FFA waste cooking oil into biodiesel via one step esterification-transesterification reaction. The novel catalyst was characterized by FTIR, SEM, XRD, TGA, BET, TPD-CO2 and TPD-NH3. The high catalytic activity of the nanocatalyst was mainly depends on the high acid and basic density of active sites that contributed from the synergic effect between mesoporous carbon and binary metallic system, which allowed more occurrence of simultaneous esterification-transesterification process of high FFA waste oil without additional pretreatment step. Result showed maximum 98.6 ± 0.5% with acid value 0.4 ± 0.5 mg KOH/g of triglyceride conversion under optimal condition at 3% of catalyst, methanol:oil ratio of 16:1, 100 °C within 4 h of reaction. Furthermore, bi-metallic catalyst with stable carbon nanorod support capable to maintained high reusability with high FAME yield (>98%) with low acid value (<0.5 mg KOH/g) for 5 cycles.
| Item Type: | Article |
|---|---|
| Funders: | PUTRA grant-UPM (Vot No: 9344200), MOSTI-eScience (Vot No: 5450746) |
| Uncontrolled Keywords: | Carbon nanorod; Lanthanum oxide; Waste cooking oil; Acid-base catalyst; Biodiesel |
| Subjects: | Q Science > Q Science (General) |
| Divisions: | Nanotechnology & Catalysis Research Centre |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 08 Sep 2017 06:27 |
| Last Modified: | 08 Sep 2017 06:27 |
| URI: | http://eprints.um.edu.my/id/eprint/17770 |
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