| abstract |
The present invention is directed, in one embodiment, to a catalytic substrate suitable for use as a substrate in many applications, such as catalytic converters. Another aspect of the present invention is a filtration substrate suitable for use as a substrate in many applications, for example, particle filters such as diesel particle filter (DPF) or diesel particle trap (DPT). The present invention also provides an improved substrate for removing and / or eliminating pollutants from combustion engine exhaust. The catalyst substrate and the filter substrate, in certain embodiments, provide an improvement in the removal of contaminants from the exhaust gas. Improvements may include one or more of the following: a faster ignition period, PM depth filtration, low back pressure, a low probability of clogging, in the exhaust system including the manifold or head itself Ability to be configured in many locations, high probability of catalytic reaction, high conversion ratio of NO x , HC and CO, faster burning of PM, minimization of catalyst material usage, etc. |