INCREASED REDUCTANT DECOMPOSITION REACTOR ROBUSTNESS THROUGH THE USE OF A HYDROLYTIC CATALYST COATING

摘要

A means for increasing the robustness of a SCR after-treatment system is provided. Specifically, a hydrolysis catalyst coating is applied to multiple surfaces within a decomposition reactor to aid in urea and urea based deposit decomposition and mitigation of urea based deposits. The reactor includes an injector mount attached to a middle tube portion, an inlet tube, an outlet tube and a mixer. A hydrolysis catalyst coating is applied to an inner surface of the injector mount, an inner surface of the middle tube portion, an inner surface of the outlet tube and an outer edge of the mixer. The hydrolysis catalyst coating is capable of decomposing urea and urea based deposits that comes in contact with the hydrolysis catalyst coating and mitigates the formation of urea based deposits.