DIESEL PARTICULATE EMISSIONS CONTROL SP-537

The first group of papers summarizes the state of the art in trap oxidizer development by those vendor firms most advanced in this technology. Discussed are ceramic wall flow filters, with and without catalysts, catalyzed metal meshes and ceramic foam. One can draw the conclusion that filtration of particulate matter in diesel exhaust can indeed be accomplished effectively. However, regeneration of the trapped particulate in place by thermal oxidation presents the major challenge. The thrust of the authors' work in this area relates to providing the structural integrity of these filter systems during the regenerative process. The second part of this publication presents the auto makers' experience with adapting trap oxidizers to vehicles. Both laboratory and over-the-road vehicle tests are described. As with most development efforts, the results are a combination of successes and failures. It will be apparent to the reader that the potential to accomplish the task of particulate filtration is in hand and exists, but the job of engineering these devices and having them perform reliably for the lifetime of the vehicle remains. The third segment of this publication includes a mix of related subjects. One important contribution is a cost/benefit analysis of the job of preventing particulate matter from getting into the environment. A successful field trial of the ceramic filter in an underground mine lends encouragement to a very important off-road application. Included also are a theoretical treatment of a regenerative process, the effect of residual matter on the long term durability of a trap, and an innovative method of particulate measurement. Again, the critical subject of trap regeneration is key throughout.

• Supplemental Notes:
  • International Congress and Exposition, Detroit, Michigan, February 28-March 4, 1983. Includes HS-034 362--HS-034 374.
• Corporate Authors:

  Society of Automotive Engineers (SAE)

  400 Commonwealth Drive
  Warrendale, PA  United States  15096
• Publication Date: 1983-2

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: 196 p.

Subject/Index Terms

• TRT Terms: Air quality management; Benefit cost analysis; Catalysts; Ceramic materials; Diesel engines; Exhaust gases; Filters; Particulates; Regenerators; State of the art studies
• Uncontrolled Terms: Regeneration
• Old TRIS Terms: Exhaust emission control; Trap oxidizers
• Subject Areas: Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 00372776
• Record Type: Publication
• Source Agency: National Highway Traffic Safety Administration
• Report/Paper Numbers: SP-537, HS-034 361
• Files: HSL, TRIS, USDOT
• Created Date: May 31 1983 12:00AM