Basf Mobile Emissions Catalysts LLC

Ivan Petrovic

Stanley Allen Roth

Yuejin Li

Wen-Mei Xue

Jeff H Yang

The present disclosure provides catalyst compositions for NOx conversion and catalytic articles incorporating such catalyst compositions. Certain catalyst compositions include a zeolite with a silica-to-alumina ratio from 5 to 20 and sufficient Cu exchanged into cation sites of the zeolite such that the zeolite has a Cu/Al ratio of 0.1 to 0.5 and a CuO loading of 1 to 15 wt. %; and a copper trapping component in a concentration in the range of 1 to 20 wt. %, the copper trapping component including a plurality of particles having a particle size of about 0.5 to 20 microns. Certain catalyst compositions include, as the copper trapping component, alumina present as a plurality of alumina particles with a Dparticle size distribution in the range of 0.5 microns to 20 microns.

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Iselin, NJ, United States of America

Ivan Petrovic