Active site of praseodymium orthovanadate catalyst in oxidative dehydrogenation of propane
โ Scribed by Weide Zhang; Chaktong Au; Huilin Wan
- Book ID
- 105646692
- Publisher
- Springer
- Year
- 1998
- Tongue
- English
- Weight
- 282 KB
- Volume
- 43
- Category
- Article
- ISSN
- 1001-6538
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MCM-22 zeolite containing vanadium atoms either at structural or at ion-exchange positions was synthesized and tested in propane oxidative dehydrogenation (ODH) reaction in a fixed bed reactor, at temperatures between 340 and 560 8C. Acidity of these materials, as well as of similar materials that d
In the case of Li-promoted MgO two different mechanisms for regeneration of the active site are found when varying the temperature between 550 and 700 8C. Propane titration showed that the active site is deactivated through formation of hydroxyl groups that are stable at 550 8C and below in absence