1 results about "No conversion" patented technology

This invention relates to a diesel oxidation catalyst that enhances NO oxidation capacity, its preparation method, and its application. The diesel oxidation catalyst comprises layered and regionalized coatings A, B, C, and optionally D. Based on the weight content of precious metals per unit volume, the sum of the loadings of platinum and palladium, the active components of precious metals, in coating B is greater than or equal to the sum of the loadings of platinum and palladium, the active components of precious metals, in coating A, and the sum of the loadings of platinum and palladium, the active components of precious metals, in coating C is greater than the sum of the loadings of platinum and palladium, the active components of precious metals, in coating B. This structural design significantly improves the low-temperature NO conversion capacity. The inclusion of coating C ensures stable fuel ignition performance, while coating D regulates the exhaust gas flow field. This catalyst has a simple preparation process, excellent performance, and can achieve a high NO conversion rate while meeting fuel ignition requirements under low precious metal loading conditions, making it suitable for industrial production applications.