Platinum catalyst deactivation during aqueous alcohol oxidation is discussed, using the oxidation of methyl -D-glucopyranoside as an example. The most important causes of platinum deactivation are catalyst over-oxidation and catalyst poisoning. Deactivation by over-oxidation can be reversed by applying a redox-cycle, i.e. cyclic exposure to oxidative and reductive circumstances. A kinetic model for methyl -D-glycopyranoside oxidation, platinum deactivation, and reactivation is presented and implemented into a three-phase stirred slurry reactor model, clearly showing the advantages of redox-cycles.
|Name||Studies in Surface Science and Catalysis|
|Conference||conference; International Symposium on Catalys Deactivation ; 8 (Brugge, Belgium) : 1999.10.10-13; 1999-10-10; 1999-10-13|
|Period||10/10/99 → 13/10/99|
|Other||International Symposium on Catalys Deactivation ; 8 (Brugge, Belgium) : 1999.10.10-13|