Note: Please consider that the PGM (Pt, Pd, Rh) content might change from one catalytic to another (with the same serial #) due to its condition affected by mileage, weather conditions, etc. *Assay made with Niton XLT3GOLDD+
Understanding Auto Catalytic Converters
Dealing with auto catalytic converters, you probably have a good understanding about the
precious metal content that creates its value as scrap.
In this short “tip of the week” we present the different mechanisms of auto catalytic
TWCC (TWC) – three-way converter
FWCC (FWC) – four-way converter
DOC – diesel oxidation catalyst
SCR – selective catalytic reduction
NOx TRAP – nitrogen oxides trap / NOx storage and reduction (NSR) technology
DPF – diesel particulate filter
For a full and detailed cover of the topic explaining the mechanisms of action, you can read our article in this link.