What Types of Catalysts are Used in Residential Heating?
Several types of catalysts are employed in residential heating systems:
1. Oxidation Catalysts: These catalysts promote the oxidation of CO to carbon dioxide (CO2) and hydrocarbons to water (H2O) and CO2, reducing the emission of toxic gases. 2. Three-Way Catalysts (TWCs): Commonly used in automotive applications, TWCs can also be adapted for residential heating to simultaneously reduce CO, NOx, and hydrocarbons. 3. Selective Catalytic Reduction (SCR) Catalysts: These are used to convert NOx into nitrogen (N2) and water, especially in systems using diesel or other heavy fuels.
