Advanced Support Mat Systems for Diesel Emission Control Devices: Addressing Solutions to Cold Holding and Erosion Issues

Diesel oxidation catalysts and particulate filters are recognized as proven solutions for reducing diesel emission levels. However, such systems now operate under extreme and unique conditions in order to meet even more demanding emission regulations. Long term cold holding performance, erosion resistance and high temperature stability are issues that must be addressed to assure a robust design in diesel oxidation catalysts and diesel particulate filters. This paper will describe the application of new concepts for support mat systems and results from internal lab testing. It will describe three different case histories, present the design parameters, and compare results with traditional support mat systems.