The design of catalyst pellets

✍ Scribed by Klaus Wohlfahrt

• Publisher: Elsevier Science
• Year: 1982
• Tongue: English
• Weight: 751 KB
• Volume: 37
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(82)80163-2

✦ Synopsis

Because of the limitations of the effectiveness factor concept to few simple types of complex reactions and independent. diffusion coefficients, it is necessary to solve the balance equations individually for each component in the general case. Therefore the characteristic equations for a catalyst pellet design were generalized for any type of complex kinetic model with regard of the multicomponent diffusion relations. In order to supply the necessary parameter values, conventional models for the physical properties of the catalyst are used. The whole modelling served as a basis of a computer program for several purposes: The control of transport limitations, the evaluation of the pseudohomoheneous production rates and the optimization of the physical properties of the catalysts. Tbe importance of an appropriate catalyst pellet design and the application of the computer program is demonstrated by several examples.