Catalyst Deactivation Due to Glaze Formation from Oil-Derived Phosphorus and Zinc
- 1 October 1984
- proceedings article
- Published by SAE International in SAE International Journal of Advances and Current Practices in Mobility
Abstract
The deactivation of automotive catalysts by engine oil-derived components of phosphorus and zinc can occur by the formation of an amorphous zinc pyrophosphate (Zn₂P₂O₇) that is impervious to gas diffusion. The catalyst poison, derived from antiwear oil additive zinc dialkyl dithiophosphate (ZDP) inKeywords
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