Several industrial processes employ catalyst regeneration. For instance:
1. Fluid Catalytic Cracking (FCC): In this process used in petroleum refineries, spent catalysts are continuously regenerated by burning off coke deposits. 2. Selective Catalytic Reduction (SCR): Catalysts used for reducing nitrogen oxides in exhaust gases are regenerated by periodic cleaning to remove accumulated contaminants. 3. Hydrotreating Catalysts: These catalysts, used in the refining industry, are regenerated by oxidative and reductive treatments to remove sulfur and other impurities.