Simultaneous PM and NOx Reduction System for Diesel Engines
2002-01-0957
03/04/2002
- Event
- Content
- A new after-treatment system called DPNR (Diesel Particulate-NOx Reduction System) has been developed for simultaneous and continuous reduction of particulate matter (PM) and nitrogen oxides (NOx) in diesel exhaust gas. This system consists of both a new catalytic technology and a new diesel combustion technology which enables rich operating conditions in diesel engines. The catalytic converter for the DPNR has a newly developed porous ceramic structure coated with a NOx storage reduction catalyst. A fresh DPNR catalyst reduced more than 80 % of both PM and NOx. This paper describes the concept and performance of the system in detail. Especially, the details of the PM oxidation mechanism in DPNR are described.
- Pages
- 10
- Citation
- Nakatani, K., Hirota, S., Takeshima, S., Itoh, K. et al., "Simultaneous PM and NOx Reduction System for Diesel Engines," SAE Technical Paper 2002-01-0957, 2002, https://doi.org/10.4271/2002-01-0957.