What is the difference between SCR and oxidation catalytic converters?

Q: What is the difference between SCR and oxidation catalytic converters?

An oxidation catalytic converter reduces carbon monoxide (CO) and formaldehyde through oxidation. An SCR catalytic converter (Selective Catalytic Reduction) minimizes nitrogen oxides (NOx) by adding a reducing agent (urea/AdBlue). We often combine both technologies.

An oxidation catalytic converter reduces carbon monoxide (CO) and formaldehyde through oxidation. An SCR catalytic converter (Selective Catalytic Reduction) minimizes nitrogen oxides (NOx) by adding a reducing agent (urea/AdBlue). We often combine both technologies.