CONTINUOUS DIESEL SOOT CONTROL WITH MINIMAL BACK PRESSURE PENALITY USING CONVENTIONAL FLOW SUBSTRATES AND ACTIVE DIRECT SOOT OXIDATION CATALYST DISPOSED THEREON

摘要

There is disclosed high cell density or tortuous/turbulent flow through monolithic catalyst devices for the direct catalytic, and (semi) continuous oxidation of diesel particulate matter. The catalysts relate to OIC/OS materials having a stable cubic crystal structure, and most especially to promoted OIC/OS wherein the promotion is achieved by the post-synthetic introduction of non-precious metals via a basic (alkaline) exchange process. The catalyst may additionally be promoted by the introduction of Precious Group Metals.