There are several reasons why incomplete decomposition might occur during a catalytic reaction:
Catalyst Deactivation: Over time, catalysts can become deactivated due to poisoning, sintering, or fouling, resulting in reduced efficiency. Suboptimal Reaction Conditions: Factors such as temperature, pressure, and concentration of reactants can influence the effectiveness of the catalyst. Selectivity: Catalysts may be selective towards certain products, leading to partial decomposition and formation of intermediates. Mass Transfer Limitations: Poor diffusion of reactants or products to and from the catalyst surface can hinder complete decomposition.
