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Tim Rogers – VP International - page 16 / 17

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Comments From VERT On Pt/Ce

This additive reduces the light off temperature to start regeneration and supports soft regenerations avoiding risky situations

Additive ash deposits are minimized due to very low metal concentration

Additive particles do not show up as a separate peak in the number-count size distribution nor do they increase the total submicron particle number

With these quite positive properties the additive looks interesting in order to widen up the application range for passive trap systems

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Key VSET Conclusions

  • Platinum Emissions about x4 lower than with existing gasoline 3 –way catalysts

  • PCDD/F emissions not increased

  • PAH emissions reduced by about 97%

  • Platinum Cerium concluded to successfully pass VSET requirements

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