This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Regeneration Behavior of Light-Duty Catalytic Trap Oxidizer Systems
Annotation ability available
Sector:
Language:
English
Abstract
Current emissions control legislation requires significant reductions of particulate emissions from light duty diesel engined vehicles in California for model year 1986 and Federally for model year 1987. In addition, NOx emissions levels will be reduced. This compounds control requirements due to the inverse relationship between NOx and particulate emissions.
To meet these standards, a catalytic trap oxidizer (CTO) based on a radial flow metal mesh filter was developed for use as an after-treatment device on light duty diesel vehicles. A complete system for assisted regeneration was devised to enable this unit to operate without blocking during all normal driving modes. The integration of the catalyzed trap and regeneration system with the vehicle to provide a practical system for the reduction of diesel particulate emissions is discussed.
To date, many prototype catalytic trap and regeneration system installations have been completed on various test vehicles, both naturally aspirated and turbocharged. The operational conditions and test results from a selection of these studies will be presented. Special emphasis will be placed on the ability of the system to perform assisted regenerations, thus enabling automatic operation over the normal in-service driving modes that light duty vehicles encounter.
Recommended Content
Technical Paper | Catalytic Control of Diesel Particulate |
Technical Paper | Catalytic Diesel Particulate Control System Design and Operation |
Technical Paper | Assuring Public Health Protection as a Result of the Mobile Source Emissions Control Program |
Citation
Buchman, M. and Enga, B., "Regeneration Behavior of Light-Duty Catalytic Trap Oxidizer Systems," SAE Technical Paper 840080, 1984, https://doi.org/10.4271/840080.Also In
References
- Enga B. E. Buchman M. F. Lichtenstein I. E. “Catalytic Control of Diesel Particulate” SAE Paper, 820184
- Buchman M. F. Enga B. E. “Catalytic Control of Light-Duty Diesel Vehicle Emissions” APCA Paper, 83-48.3
- Weaver C. S. Miller C. “Trap-Oxidizer Technology for Light-Duty Diesel Vehicles: Feasibility, Costs and Present Status” EPA Contract #68-01-6543
- Oser P. Thoms U. “Particulate Control Systems for Diesel Engines Using Catalytically Coated and Uncoated Traps with Consideration of Regeneration Techniques” SAE Paper, 830087
- Buchman M. F. Enga B. E. “Catalytic Diesel Particulate Control System Design and Operation” SAE Paper, 830080
- Wade W. R. “Light-Duty Diesel NOx-HC-Particulate Trade-Off Studies” SAE Paper, 800335