A Catalyzed Hydrocarbon Trap Using Metal-impregnated Zeolite for SULEV systems

2003-01-0815

03/03/2003

Event
SAE 2003 World Congress & Exhibition
Authors Abstract
Content
A catalyzed hydrocarbon (HC) trap aiming at the super-ultra low emission vehicle (SULEV) regulation was developed using a metal-impregnated zeolite. To enhance the adsorption and to raise the desorption temperature for a wide range of HC species, the modification of zeolite with certain metals was needed and Ag was found to be the most promising. Using a Ag impregnated zeolite, a three way catalyst was prepared, and its HC purification ability for a model gas simulating cold-start HCs was studied. Its heat resistance was also examined. A vehicle test for a fresh catalyzed HC trap showed that the cold-start HC after the newly developed trap almost reached the SULEV regulation level.
Meta TagsDetails
DOI
https://doi.org/10.4271/2003-01-0815
Pages
9
Citation
Higashiyama, K., Nagayama, T., Nagano, M., Nakagawa, S. et al., "A Catalyzed Hydrocarbon Trap Using Metal-impregnated Zeolite for SULEV systems," SAE Technical Paper 2003-01-0815, 2003, https://doi.org/10.4271/2003-01-0815.
Additional Details
Publisher
Published
Mar 3, 2003
Product Code
2003-01-0815
Content Type
Technical Paper
Language
English