What are the Common Sources of Thermal Stress in Catalysis?
Several sources can contribute to thermal stress in catalysts:
1. Exothermic Reactions: Highly exothermic reactions can generate significant heat, leading to temperature gradients within the catalyst bed. 2. Operational Fluctuations: Changes in operational conditions, such as rapid start-ups and shutdowns, can cause abrupt temperature changes. 3. External Heat Sources: External factors, such as ambient temperature variations or heat generated from adjacent processes, can also contribute to thermal stress.