Catalyst erosion can be caused by several factors, including:
1. Mechanical Wear: Physical abrasion caused by high-velocity gas or liquid streams can erode the catalyst surface. 2. Chemical Attack: Reactive species in the feedstock can chemically degrade the catalyst, leading to loss of active sites or structural integrity. 3. Thermal Stress: Repeated heating and cooling cycles can result in thermal expansion and contraction, causing cracks and fragmentation. 4. Contaminants: Impurities in the feedstock, such as sulfur or heavy metals, can poison the catalyst, rendering it less effective or even inactive.
