2023, Vol. 4, Issue 2, Part A

Throughout refinement, catalysts are switched off in commercial catalytic processes. When they are not tuned, catalysts become dangerous. Deactivation catalyst is mostly wasted FCC catalyst as a result of heavy metal coke, poison, and sintering. Regenerating a deactivated catalyst could eliminate the metals while resurrecting the very desirable catalytic activity. While there are a few a variety of physical, chemical, and thermal treatment methods for removing metals, it is still difficult to discover reliable, effective, and cost-effective regeneration strategies for catalytic processes in commercial application. In addition, the effect of relevant reaction parameters on the route for regenerating utilized catalyst was investigated, and suggestions were made for the future of this research. This brief review offers an important evaluation of the material recently made publicly available on the reuse of used FCC catalyst by oxidation, gasification, and chemical processes, could potentially provide some insight into the development and improvement of catalysts as well as associated processes.