Common issues that may arise in worst-case scenarios include:
1. Catalyst Poisoning: The deactivation of the catalyst due to the presence of impurities or poisons in the feedstock. 2. Thermal Runaway: Uncontrolled exothermic reactions leading to rapid temperature increases and potential safety hazards. 3. Mechanical Failures: Structural failures of the reactor or catalyst support due to extreme operating conditions. 4. Loss of Selectivity: A decrease in the selectivity of the catalyst, resulting in the formation of unwanted by-products. 5. Environmental Impact: The release of hazardous substances or pollutants as a result of catalyst failure or process upsets.
