Modeling of slow dynamics in the oxidation of CO over supported silver

✍ Scribed by B. H. Shanks; J. E. Bailey

• Publisher: American Institute of Chemical Engineers
• Year: 1987
• Tongue: English
• Weight: 543 KB
• Volume: 33
• Category: Article
• ISSN: 0001-1541
• DOI: 10.1002/aic.690331205

✦ Synopsis

The oxidation of CO over aluminum-supported Ag was studied at 147 OC using transient experiments. Long-time-scale dynamics were observed that could not be explained by previously postulated kinetic mechanisms for this reaction system. A model is presented with kinetic parameters estimated from steady state and transient data that is able to reproduce a variety of cycled feed stream experiments. The model incorporates a slow reversible step which forms an adsorbed oxygen species that blocks reaction sites.