Fines can be generated through various mechanisms:
1. Mechanical Attrition: Physical wear and tear of catalyst particles during operation can produce fines. This is common in fluidized bed reactors where particles collide frequently. 2. Chemical Degradation: Chemical reactions, such as sintering or poisoning, can degrade the structure of the catalyst, leading to the formation of fines. 3. Feedstock Impurities: Impurities in the feedstock can precipitate out during the reaction, forming fine particles.
