Yes, physisorption poisons can often be removed due to the weak nature of their interaction with the catalyst surface. Common methods include:
- Thermal Desorption: Heating the catalyst can provide enough energy to overcome the van der Waals forces and desorb the poisons. - Purge with Inert Gas: Flushing the system with an inert gas can help to remove adsorbed poisons. - Vacuum Treatment: Applying a vacuum can also help to desorb physisorption poisons by lowering the partial pressure of the adsorbed species.
