Optimization of reactors with catalyst decay and the constant conversion policy

✍ Scribed by C.M. Crowe

• Publisher: Elsevier Science
• Year: 1976
• Tongue: English
• Weight: 375 KB
• Volume: 31
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(76)87047-9

✦ Synopsis

Ah&a&-For continuous stirred-tank and plug-flow catalytic reactors in which the catalyst activity decreases with time, Szepe [l] showed that the optimal temperature-time policy can lead to a policy of constant exit conversion under specilic conditions. These conditions included a single irreversible reaction with a separable rate equation and a rate of decay of catalyst activity also separable and independent of composition.

It is the purpose of this paper to extend the results of Szepe and to establish: (a) A necessary and sufficient condition for a constant-conversion optimal policy in a continuous stirred-tank reactor, and (b) A proof of the constankonversion policy for a plug-flow reactor with distributed control of temperature for a general irreversible reaction with separable kinetics.

In both cases, the rate of decay is assumed to depend on composition.