| abstract |
The present invention in certain embodiments is directed to a catalytic substrate suitable for use in a number of applications, including its use as a substrate in a catalytic converter. Another aspect of the present invention is a filter substrate suitable for use in a number of applications, including its use as a substrate in a particle filter, such as in a diesel particulate filter (DPF), or diesel particle trap (DPT). ). The invention also provides an improved substrate for extracting and / or removing contaminants from the combustion gases of combustion engines, the catalytic substrate and the filter substrate provide, in certain embodiments, improvements in the removal of contaminants from a combustion gas. The improvements include one or more of the following: faster ignition period, deep filtration of material particles (PM), lower differential pressure, lower probability of clogging, ability to be placed in multiple locations in the exhaust system, including the distributor or head alone, high probability of catalytic reaction, high conversion rates of NOx, HC and CO, faster burning of PM, minimization of use of catalyst material, and the like. |