O-Th-Com-6 NH3-SCR Activity Characterization of Fully Formulated Chabazite Catalysts: Cu-SSZ-13 versus Cu-SAPO-34

Thursday, June 6, 2013: 10:20 AM
Combs Chandler (Galt House Hotel)
Giovanni Cavataio1, Lei Ma2, Yisun Cheng1, Robert W. McCabe1 and Junhua Li2, (1)Ford Motor Company, USA, (2)Tsinghua University, China.
Catalytic performance differences in NOx reduction, NH3 oxidation, NH3 storage, and O2 level influences have been observed between the two formulations which can be related to the zeolite composition, acidity, copper species, and resultant impact on reactant adsorption and desorption characteristics.  Attempts are made to explain differences due to physicochemical properties.

Extended Abstracts: