The roles of phosphorus and soot on the deactivation of diesel oxidation catalysts

Scott J. Eaton, Bruce G. Bunting, Todd J. Toops, Ke Nguyen

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

The deactivation of diesel oxidation catalysts (DOCs) by soot contamination and lube-oil derived phosphorus poisoning is investigated. Pt/CeO 2/γ-AI2O3 DOCs aged using three different protocols developed by the authors and six high mileage field-returned DOCs of similar formulation are evaluated for THC and CO oxidation performance using a bench-flow reactor. Collectively, these catalysts exhibit a variety of phosphorus and soot morphologies contributing to performance deactivation.

Original languageEnglish
JournalSAE Technical Papers
DOIs
StatePublished - 2009

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