What Are the Types of Catalysts Used in Recycling?
There are several types of catalysts used in recycling, each serving specific functions:
1. Heterogeneous Catalysts: These catalysts exist in a different phase than the reactants, typically as solids in contact with liquid or gaseous reactants. They are widely used in petrochemical recycling and plastic degradation.
2. Homogeneous Catalysts: These catalysts are in the same phase as the reactants, often used in liquid recycling processes. They are particularly effective in chemical recycling of plastics and other polymers.
3. Biocatalysts: Enzymes and microorganisms act as biocatalysts to degrade organic materials. They are critical in biodegradable plastic recycling and the treatment of organic waste.