This chapter determines the control factors which govern adhesion of a reformer washcoat to a reformer substrate. The reformer catalyst is a noble metal, from the platinum‐group metals that includes platinum, rhodium, palladium, etc. As platinum‐group metals are very expensive, it is not feasible to increase the amount of precious metal used to compensate for catalyst loss during reformer operation. Hence, the amount of washcoat applied must remain adhered to the substrate throughout the product lifetime. Catalyst loss is a problem for reformers due to spallation of the washcoat. Taguchi Robust Engineering methods were chosen to investigate the design space for reformer washcoat adhesion using an L54 matrix with 3 duplicates for each design factor combination or run. After implementing the results from the study, the reformer washcoat has successfully maintained its washcoat for 480 hours and 30 thermal cycles without excessive loss of catalyst.
Reformer Washcoat Adhesion on Metallic SubstratesDelphi Automotive Systems, USA
2016-02-10
26 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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