skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Diesel Exhaust Emissions Control for Light-Duty Vehicles

Abstract

The objective of this paper is to present the results of diesel exhaust aftertreatment testing and analysis done under the FreedomCAR program. Nitrogen Oxides (NOx) adsorber technology was selected based on a previous investigation of various NOx aftertreatment technologies including non-thermal plasma, NOx adsorber and active lean NOx. Particulate Matter (PM) emissions were addressed by developing a catalyzed particulate filter. After various iterations of the catalyst formulation, the aftertreatment components were integrated and optimized for a light duty vehicle application. This compact exhaust aftertreatment system is dual leg and consists of a sulfur trap, NOx adsorbers, and catalyzed particulate filters (CPF). During regeneration, supplementary ARCO ECD low-sulfur diesel fuel is injected upstream of the adsorber and CPF in the exhaust. Steady state and transient emission test results with and without the exhaust aftertreatment system (EAS) are presented. Results of soot filter regeneration by injecting low-sulfur diesel fuel and slip of unregulated emissions, such as NH3, are discussed. Effects of adsorber size and bypass strategy on NOx conversion efficiency and fuel economy penalty are also presented in this paper. The results indicate that if the supplementary fuel injection is optimized, NH3 slip is negligible. During the FTP cycle, injection of lowmore » sulfur diesel fuel can create temperature exotherms high enough to regenerate a loaded CPF. With the optimized NOx adsorber regeneration strategies the fuel injection penalty can be reduced by 40 to 50%. Results for various other issues like low temperature light off, reductant optimization, exhaust sulfur management, system integration and design trade-off, are also presented and discussed in this paper. (SAE Paper SAE-2003-01-0041 © 2003 SAE International. This paper is published on this website with permission from SAE International. As a user of this website, you are permitted to view this paper on-line, download this pdf file and print one copy of this paper at no cost for your use only. The downloaded pdf file and printout of this SAE paper may not be copied, distributed or forwarded to others or for the use of others.)« less

Authors:
; ; ; ;  [1];  [2];  [3]
  1. Cummins, Inc.
  2. Argonne National Laboratory
  3. U.S. Department of Energy
Publication Date:
Research Org.:
Cummins Inc., U.S. Department of Energy
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EE)
OSTI Identifier:
833267
Report Number(s):
SAE-2003-01-0041
Resource Type:
Conference
Resource Relation:
Conference: SAE 2003 World Congress & Exhibition, Session: Diesel Exhaust Emission Control (Part 1 & 2 of 6), Detroit, MI, March 2003
Country of Publication:
United States
Language:
English

Citation Formats

Mital, R, Li, J, Huang, S C, Stroia, B J, Yu, R C, Anderson, J A, and Howden, Kenneth C. Diesel Exhaust Emissions Control for Light-Duty Vehicles. United States: N. p., 2003. Web.
Mital, R, Li, J, Huang, S C, Stroia, B J, Yu, R C, Anderson, J A, & Howden, Kenneth C. Diesel Exhaust Emissions Control for Light-Duty Vehicles. United States.
Mital, R, Li, J, Huang, S C, Stroia, B J, Yu, R C, Anderson, J A, and Howden, Kenneth C. 2003. "Diesel Exhaust Emissions Control for Light-Duty Vehicles". United States. https://www.osti.gov/servlets/purl/833267.
@article{osti_833267,
title = {Diesel Exhaust Emissions Control for Light-Duty Vehicles},
author = {Mital, R and Li, J and Huang, S C and Stroia, B J and Yu, R C and Anderson, J A and Howden, Kenneth C},
abstractNote = {The objective of this paper is to present the results of diesel exhaust aftertreatment testing and analysis done under the FreedomCAR program. Nitrogen Oxides (NOx) adsorber technology was selected based on a previous investigation of various NOx aftertreatment technologies including non-thermal plasma, NOx adsorber and active lean NOx. Particulate Matter (PM) emissions were addressed by developing a catalyzed particulate filter. After various iterations of the catalyst formulation, the aftertreatment components were integrated and optimized for a light duty vehicle application. This compact exhaust aftertreatment system is dual leg and consists of a sulfur trap, NOx adsorbers, and catalyzed particulate filters (CPF). During regeneration, supplementary ARCO ECD low-sulfur diesel fuel is injected upstream of the adsorber and CPF in the exhaust. Steady state and transient emission test results with and without the exhaust aftertreatment system (EAS) are presented. Results of soot filter regeneration by injecting low-sulfur diesel fuel and slip of unregulated emissions, such as NH3, are discussed. Effects of adsorber size and bypass strategy on NOx conversion efficiency and fuel economy penalty are also presented in this paper. The results indicate that if the supplementary fuel injection is optimized, NH3 slip is negligible. During the FTP cycle, injection of low sulfur diesel fuel can create temperature exotherms high enough to regenerate a loaded CPF. With the optimized NOx adsorber regeneration strategies the fuel injection penalty can be reduced by 40 to 50%. Results for various other issues like low temperature light off, reductant optimization, exhaust sulfur management, system integration and design trade-off, are also presented and discussed in this paper. (SAE Paper SAE-2003-01-0041 © 2003 SAE International. This paper is published on this website with permission from SAE International. As a user of this website, you are permitted to view this paper on-line, download this pdf file and print one copy of this paper at no cost for your use only. The downloaded pdf file and printout of this SAE paper may not be copied, distributed or forwarded to others or for the use of others.)},
doi = {},
url = {https://www.osti.gov/biblio/833267}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Mar 01 00:00:00 EST 2003},
month = {Sat Mar 01 00:00:00 EST 2003}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share: