The regeneration process at SCR-Tech consists primarily of four individual steps:
- Ultrasonic Deep Cleaning — We first use patented ultrasonic process to remove physical and microscopic pluggage
- Soaking and Washing — During this step, chemicals remove poisons that have contributed to catalyst deactivation
- Regeneration — Catalyst activity is restored through chemical reactivation
- Heat Treatment — This final step seals in the newly added activity
In practice, the full ReGen process consists of numerous individual process steps. Not all of these steps are applied to every batch of spent catalyst to be regenerated. Through various testing methods, a catalyst-specific cleaning, rejuvenation and regeneration program — or “recipe” — is developed for each batch of catalyst from a particular SCR facility.
Removal of catalyst poisons:
Our processes are capable of removing even the most severe chemical catalyst poisons, such as arsenic, phosphorus, chromium and thallium. Less severe chemical catalyst poisons, such as sodium, potassium and calcium are also efficiently removed along with physical restrictions such as fly ash plugging, surface blinding layers and other surface blockages including popcorn ash plugging.
The module is immersed into a proprietary bath containing the chemicals needed to reactivate the catalyst, thereby restoring the original activity level.