Increased reductant decomposition reactor robustness through the use of a hydrolytic catalyst coating

A reductant decomposition reactor capable of decomposing urea and urea based deposits and mitigating the formation of urea based deposits comprising:

• an injector mount attached to a middle tube portion, the injector mount capable of introducing urea into the reactor;
• an inlet tube disposed at a first end of the middle tube portion that is configured to connect to a first portion of an exhaust system;
• an outlet tube disposed at a second end of the middle tube portion that is configured to connect to a second portion of the exhaust system;
• a mixer disposed at a second end of the middle tube portion adjacent to the outlet tube that is configured to decompose the urea introduced into the reactor via the injector mount;
• a metallic skirt with a hydrolysis catalyst coating applied to a portion of the skirt and attached to an inner surface of the injector mount using a post adjacent to an injector port of the injector mount, the skirt having an opening at a back end of the skirt in the injector mount, the opening configured to force the injected urea into the middle tube portion and the skirt configured to prevent the injected urea from traveling back into the injector port;
• wherein a portion of the inner surface of the injector mount, a portion of an inner surface of the middle tube portion, a portion of an inner surface of the outlet tube and a portion of an outer edge of the mixer have the hydrolysis catalyst coating applied thereto that is capable of decomposing urea and urea based deposits that come in contact with the hydrolysis catalyst coating and mitigates the formation of urea based deposits.