There are several factors that contribute to catalyst aging:
Thermal Degradation: High temperatures can cause sintering, where catalyst particles agglomerate, reducing their surface area and activity. Poisoning: Certain substances can adsorb onto the active sites of the catalyst, blocking them and reducing catalytic activity. Fouling: Accumulation of carbonaceous deposits or other materials on the catalyst surface can hinder its performance. Structural Changes: Prolonged exposure to reaction conditions can alter the catalyst's crystalline structure, impacting its effectiveness.
