PROCESS FOR PREPARATION OF A ZEOLITE-BASED CATALYST

摘要

Disclosed is a method for preparing a zeolite-based catalyst for application on a substrate. The method consists of the steps of: preparing a chemical composition comprising tin oxide, zirconium oxide, cerium oxide, and lanthanum oxide: combining the composition with a catalyst comprising a two-phase hydrocarbon ??X reduction catalyst comprising one or more transition metals supported on a molecular sieve with a coating of one or more stabilizing oxides; and applying the resulting catalyst material to a substrate. The ratio of the catalyst to chemical composition may vary from greater than 1 to 1 to less than 50 to 1. A washcoat may be prepared using the chemical composition, which washcoat is then combined with the catalyst. The washcoat may be combined with the zeolite catalyst using high power density mixing. The resulting catalyst material will then be applied to the substrate.