Coking of Catalysts: Mechanisms, Models, and Influence
Н. М. Островский
Abstract
This review considers the mechanism of multilayered coke formation on catalysts of various types and analyzes its possible variants. A detailed derivation of equations of the dynamics of accumulation for different types of coke and the kinetics of its deactivating effect is given. The substantiated dependences of the relative activity of a catalyst on the concentration of coke are derived. Specific examples of these dependences are presented. They confirm the advantages of rigorous models based on the mechanism of the phenomenon in comparison with the formal description of experiments, which does not have predictive power.
Topics & Concepts
CokeChemistryCatalysisKineticsMechanism (biology)ThermodynamicsChemical engineeringComputational chemistryBiochemical engineeringOrganic chemistryPhysicsClassical mechanicsEngineeringQuantum mechanicsZeolite Catalysis and SynthesisCarbon Nanotubes in CompositesCatalysis and Oxidation Reactions