Alkanes, alkenes and aromatics : the oxidative dehydrogenation of n-octane using iron molybdate catalysts
The oxidative dehydrogenation (ODH) of n-octane to produce octene at atmospheric pressure has been studied using an industrially supplied iron molybdate catalyst from Johnson Matthey (JM). In situ X-ray diffraction studies revealed at temperatures ≥450 °C the catalyst undergoes a reductive phase tra...
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Cardiff University
2014
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| Online Access: | https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.665862 |
| Summary: | The oxidative dehydrogenation (ODH) of n-octane to produce octene at atmospheric pressure has been studied using an industrially supplied iron molybdate catalyst from Johnson Matthey (JM). In situ X-ray diffraction studies revealed at temperatures ≥450 °C the catalyst undergoes a reductive phase transition when reacted with noctane at 450 °C where the phase changes from Fe2(MoO4)3-MoO3 to FeMoO4-MoO2-Mo4O11. As a result, if the temperature is taken back below this point the catalyst does not revert to the original phase and therefore the same activity and selectivity cannot be achieved. |
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