Talebian-Kiakalaieh, A. and Amin, N. A. S. and Zakaria, Z. Y. (2016) Gas phase selective conversion of glycerol to acrolein over supported silicotungstic acid catalyst. Journal of Industrial and Engineering Chemistry, 34 . pp. 300-312. ISSN 1226-086X
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Abstract
Gas phase dehydration of glycerol to acrolein over a series of supported HSiW on ZrO2 and nano-sized γ-Al2O3 catalyst has been investigated. The characterization results revealed that impregnation of γ-Al2O3 nanoparticles increased the specific surface area, pore diameter, and thermal stability of the supported catalysts. The highest acrolein selectivity of 88.5% at 97.0% glycerol conversion was achieved over 0.5g 30HZ-20A catalyst in 3h at glycerol feed concentration of 10wt%, temperature=300 ?C and TOF=136 h-1. The coke deposition has no significant effect on the activity of 30HZ-20A catalyst. Indeed, the catalyst was stable even after 40h.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Aldehydes, Aluminum, Catalyst selectivity, Catalysts, Dehydration, Gases, Glycerol, Herbicides, Thermodynamic stability, Acrolein, Coke deposition, Feed concentration, Glycerol conversions, Keggin-anion, Nano sized, Pore diameters, Silicotungstic acid, Catalyst supports |
| Subjects: | T Technology > TP Chemical technology |
| Divisions: | Chemical Engineering |
| ID Code: | 73857 |
| Deposited By: | Haliza Zainal |
| Deposited On: | 20 Nov 2017 02:16 |
| Last Modified: | 20 Nov 2017 02:16 |
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