首页>
外国专利>
MULTILAYERED CATALYST FOR DIESEL OXIDATION APPLICATIONS COMBINING A PSEUDOBROOKITE OXIDE PHASE AB2O5 WITH LOW LOADINGS OF PLATINUM GROUP METALS (PGM) FOR HIGH SULFUR POISONING RESISTANCE
MULTILAYERED CATALYST FOR DIESEL OXIDATION APPLICATIONS COMBINING A PSEUDOBROOKITE OXIDE PHASE AB2O5 WITH LOW LOADINGS OF PLATINUM GROUP METALS (PGM) FOR HIGH SULFUR POISONING RESISTANCE
Sulfur-resistant synergized platinum group metals (SPGM) catalysts suitable for diesel oxidation are disclosed. Catalytic layers of SPGM catalyst samples contain a washcoat layer substantially free of PGM material (ZPGM). The SPGM catalyst includes a washcoat layer comprising YMn2O5 (pseudobrookite) and an overcoat layer including a Pt/Pd composition with a total PGM loading of up to 176.6 g/m3 (5.0 g/ft3). Resistance to sulfur poisoning and catalytic stability under sulfation conditions with high NO oxidation, and HC and CO conversion performances are observed.
展开▼
机译：公开了适用于柴油氧化的抗硫增效铂族金属（SPGM）催化剂。 SPGM催化剂样品的催化层包含基本不含PGM材料（ZPGM）的修补基面涂层。 SPGM催化剂包括一个包含YMn 2 O 5 （假板钛矿）的修补基面涂层和一个包含Pt / Pd成分的外涂层，其总PGM含量高达176.6 g / g。 m 3 （5.0 g / ft 3 ）。观察到在高NO氧化的硫酸化条件下对硫中毒的抗性和催化稳定性，以及HC和CO的转化性能。
展开▼
