Abstract: Particulate compositions for promoting CO oxidation in FCC processes are provided, the compositions comprising an anionic clay support having at least one dopant, wherein at least one compound comprising iridium, rhodium, palladium, copper, or silver is deposited on the anionic clay support, and the composition is substantially free of platinum.

Abstract: Compositions suitable for use in FCC processes are provided that are capable of providing improved CO oxidation promotion activity along with NOx emission control. Generally, compositions are provided for promoting CO oxidation in FCC processes, wherein the compositions contain (i) a basic material support, (ii) at least one oxide of a lanthanide series element, (iii), optionally, at least one oxide of a transition metal selected from Groups Ib and IIb of the Periodic Table and (iv) at least one precious metal. The basic material support is preferably a hydrotalcite-like compound.