PYRENE OXIDATION AS A MODEL REACTION FOR CHARACTERIZING THE MECHANISMOF COKE OXIDATION ON Y-ZEOLITES

Authors
MOLJORD K MAGNOUX P GUISNET M
Citation
K. Moljord et al., PYRENE OXIDATION AS A MODEL REACTION FOR CHARACTERIZING THE MECHANISMOF COKE OXIDATION ON Y-ZEOLITES, Catalysis letters, 28(1), 1994, pp. 53-59
Citations number
12
Categorie Soggetti
Chemistry Physical
Journal title
Catalysis letters → ACNP
ISSN journal
1011372X
Volume
28
Issue
1
Year of publication
1994
Pages
53 - 59
Database
ISI
SICI code
1011-372X(1994)28:1<53:POAAMR>2.0.ZU;2-8
Abstract
The same effect of temperature on the production of CO, CO2 and H2O wa s found during oxidative treatment of HY zeolites either impregnated w ith pyrene or coked. Therefore, pyrene oxidation can be used to specif y the mechanism of coke oxidation. Three types of reactions can be dis tinguished: (a) condensation of polyaromatic molecules, (b) oxidation of polyaromatics into aldehydes, ketones, acids and anhydrides and (c) decarbonylation or decarboxylation of oxygenated compounds, all these reactions involving protonic sites.