What Types of Catalysts Are Used for Emission Reductions?
Various types of catalysts are employed to reduce emissions, including:
1. Heterogeneous Catalysts: These catalysts exist in a different phase than the reactants, typically solid catalysts interacting with gaseous or liquid reactants. They are commonly used in automotive catalytic converters and industrial processes.
2. Homogeneous Catalysts: These catalysts are in the same phase as the reactants, often used in liquid-phase reactions. They are less common in emission reduction due to difficulties in separation and recovery.
3. Enzymatic Catalysts: Enzymes can also act as catalysts and are used in specific biotechnological applications to reduce emissions, such as in the treatment of waste gases from certain industrial processes.
