Development of Non-Nickel Additives for Reducing Hydrogen Sulfide Emissions from Three-way Catalysts 892095
Under certain operating conditions, automotive three-way catalysts can form hydrogen sulfide in concentrations sufficient to produce an offensive odor. Several additives from the ferrite group of compounds (M2+Fe2O4 where M = Ni, Co, Zn, Cu) have been determined to effectively reduce hydrogen sulfide emissions from three-way catalyst washcoats in laboratory tests. No alterations in the chemistry of the catalyst are required, and no detrimental effect on three-way activity is observed.
Citation: Rleck, J., suarez, W., and Kubsh, J., "Development of Non-Nickel Additives for Reducing Hydrogen Sulfide Emissions from Three-way Catalysts," SAE Technical Paper 892095, 1989, https://doi.org/10.4271/892095. Download Citation
Jeffery s. Rleck, Wilson suarez, Joseph E. Kubsh
W. R. Grace & Co. Conn. Research Division Columbia, MD
1989 SAE International Fall Fuels and Lubricants Meeting and Exhibition
SAE Transactions Journal of Fuels and Lubricants-V98-4