公开(公告)号：US09545626B2

公开(公告)日：2017-01-17

申请号：US13941015

申请日：2013-07-12

Applicant: Clean Diesel Technologies, Inc.

Inventor： Zahra Nazarpoor ,  Sen Kitazumi ,  Johnny T. Ngo

IPC: B01J23/72 ,  B01J37/02 ,  B01J23/50 ,  B01J23/83 ,  B01D53/94

CPC classification number: B01J37/0244 ,  B01D53/944 ,  B01D2255/104 ,  B01D2255/2065 ,  B01D2255/20707 ,  B01D2255/20715 ,  B01D2255/20761 ,  B01D2255/65 ,  B01D2255/9022 ,  B01D2255/908 ,  B01J23/50 ,  B01J23/72 ,  B01J23/83

Abstract: The present disclosure refers to a plurality of process employed for optimization of Zero-PGM washcoat and overcoat loadings on metallic substrates. According to an embodiment a substantial increase in conversion of HC and CO may be achieved by optimizing the total washcoat and overcoat loadings of the catalyst. According to another embodiment, the present disclosure may provide solutions to determine the optimum total washcoat and overcoat loadings for minimizing washcoat adhesion loss. As a result, may increase the conversion of HC and CO from discharge of exhaust gases from internal combustion engines, optimizing performance of Zero-PGM catalyst systems.

Abstract translation: 本公开涉及用于在金属基材上优化零PGM修补基面涂层和外涂层负载的多种方法。 根据一个实施方案，可以通过优化催化剂的总修补基面涂层和外涂层负载量来实现HC和CO的转化率的显着增加。 根据另一个实施方案，本公开可提供用于确定用于最小化洗涂层粘附损失的最佳总修补基面涂层和外涂层负载量的解决方案。 因此，可能会增加HC和CO从内燃机废气排放中的转化，从而优化Zero-PGM催化剂体系的性能。

公开(公告)号：US09517449B2

公开(公告)日：2016-12-13

申请号：US13927850

申请日：2013-06-26

Applicant: Clean Diesel Technologies, Inc.

Inventor： Zahra Nazarpoor ,  Sen Kitazumi ,  Johnny T. Ngo

IPC: B01J23/10 ,  B01J23/72 ,  B01J37/02 ,  B01J23/83 ,  B01D53/94 ,  B01J37/03 ,  B01J35/00 ,  B01J35/02 ,  B01J35/04 ,  B01J37/00

CPC classification number: B01J23/72 ,  B01D53/944 ,  B01D2255/206 ,  B01D2255/207 ,  B01D2255/65 ,  B01D2255/908 ,  B01J23/83 ,  B01J35/002 ,  B01J35/0066 ,  B01J35/023 ,  B01J35/04 ,  B01J37/0036 ,  B01J37/0225 ,  B01J37/03

Abstract: Solutions to the problem of washcoat and/or overcoat adhesion loss of ZPGM catalyst on metallic substrates are disclosed. Present disclosure provides a novel process for improving WCA to metallic substrates of ZPGM catalyst systems. Reduction of WCA loss and improved catalyst activity may be enabled by the selection of processing parameters determined from variations of pH and addition of binder to overcoat slurry, and particle size of washcoat. Processing parameters may be applied to a plurality of metallic substrates of different geometries and cell densities.

Abstract translation: 公开了在金属基底上ZPGM催化剂的修补基面涂层和/或外涂层附着损失问题的解决方案。 本发明提供了一种用于将WCA改善为ZPGM催化剂体系的金属基材的新方法。 通过选择由pH的变化和粘合剂添加到外涂层浆料确定的加工参数以及修补基面涂层的粒径，可以实现WCA损失的降低和催化剂活性的改善。 处理参数可以应用于不同几何形状和细胞密度的多个金属基底。