Sani, Yahaya Muhammad and Alaba, Peter Adeniyi and Aziz, A.R.Abdul and Daud, Wan Mohd Wan (2014) Effect of Preparation Method in Activating Active Sites and Catalytic Activity of SO42-/Zro2 in Biodiesel Production. In: Proceeding the Regional Conference on Chemical Engineering, December 2-3, 2014, Yogyakarta.
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Abstract
The effect of precursor type and concentration in activating different sulfated zirconia catalysts and their activities for transesterification was investigated. Double sulfation ensured sulfate incorporation while subsequent drying and calcination at 600°C for 5 h stabilized the surface structure of the catalysts. XRD and BET analyses elucidated the structural and textural properties of the catalysts. Higher concentration of combined precursors and concentration of sulfuric acid in SZ increases the surface area of the materials. The results showed that minor amounts of precursor enhanced catalytic activity of the materials while sulfate content determines the amounts of Brönsted and Lewis acidities. The synergetic effect from a combination of precursors gave more 95% conversion from the simultaneous esterification of free fatty acids (FFA) and transesterification of triglycerides (TG).
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Uncontrolled Keywords: | Preparation; bi-functional catalyst; acid activation; solid acid catalyst; biodiesel |
| Subjects: | T Technology > T Technology (General) T Technology > TP Chemical technology |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | Mrs Patricia Nwokealisi |
| Date Deposited: | 21 Aug 2018 12:21 |
| Last Modified: | 21 Aug 2018 12:21 |
| URI: | http://eprints.covenantuniversity.edu.ng/id/eprint/11409 |
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