摘要:
Provided herein are zoned catalysts that utilize components efficiently in that relatively short zones are provided to achieve specific functionalities to convert and/or trap one or more components in the exhaust stream. Highly controlled zoned are formed from one end of a monolithic carrier. The zones have a flat profile such that the zoned catalytic material within each passage of the substrate is at a substantially uniform distance from one end of the carrier. Methods of making and using the same are also provided.
摘要:
Provided herein are zoned catalysts that utilize components efficiently in that relatively short zones are provided to achieve specific functionalities to convert and/or trap one or more components in the exhaust stream. Highly controlled zoned are formed from one end of a monolithic carrier. The zones have a flat profile such that the zoned catalytic material within each passage of the substrate is at a substantially uniform distance from one end of the carrier. Methods of making and using the same are also provided.
摘要:
The principles and embodiments of the present invention relate generally to systems and methods for applying a catalytic coating to the outwardly facing edges of the cell walls of a catalytic substrate to reduce the amount of soot that accumulates at the entrances of the substrate cells that can increase back pressure and reduce the flow of exhaust gases through the substrate.
摘要:
The principles and embodiments of the present invention relate generally to systems and methods for applying a catalytic coating to the outwardly facing edges of the cell walls of a catalytic substrate to reduce the amount of soot that accumulates at the entrances of the substrate cells that can increase back pressure and reduce the flow of exhaust gases through the substrate.