Mechanical wear in catalysis can be caused by several factors, including:
Friction: Continuous contact between catalyst particles and reactor walls or other particles can lead to surface wear. Abrasion: The scraping action of hard particles against the catalyst surface can remove material. Erosion: High-velocity gas or liquid streams can erode the catalyst surface over time. Impact Forces: Sudden mechanical shocks or impacts can cause cracks or fractures in catalyst materials.
