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NOx Adsorber Desulfurization Under Conditions Compatible With Diesel Applications
Technical Paper
2001-01-0508
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
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Event:
SAE 2001 World Congress
Language:
English
Abstract
One of the main drawbacks of the NOx adsorber technology vs. the other leading approach for high level NOx conversion, namely selective catalytic reduction, is its high sensitivity to sulfur. In spite of the likely availability of ultra-low sulfur fuel and protecting devices like sulfur traps, and furthermore taking into consideration additional sulfur sources such as engine oil and lubricants, a desulfurization strategy will be essential to the commercial implementation of NOx adsorber catalysts on diesel vehicles. The results presented in this paper were obtained on NOx adsorbers with proven thermal durability and efficiency in diesel engine exhaust. They show NOx performance recovery following severe sulfur poisoning, after desulfation under temperature and air/fuel mixture conditions compatible with diesel engine operation. In addition, different desulfurization tactics, tested on a synthetic gas bench simulating diesel exhaust, are depicted and discussed.
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Citation
Molinier, M., "NOx Adsorber Desulfurization Under Conditions Compatible With Diesel Applications," SAE Technical Paper 2001-01-0508, 2001, https://doi.org/10.4271/2001-01-0508.Also In
Diesel Exhaust Emissions Control: Developments in Regulation and Catalytic Systems
Number: SP-1581; Published: 2001-03-05
Number: SP-1581; Published: 2001-03-05
References
- Jackson Michael D. “Overview of Diesel Engine Retrofit Technologies” NOx Retrofit Technology Workshop Sacramento 2000
- Miller William R. Klein John T. Mueller Raimund Doelling Winfried Zuerbig Juergen “The Development of Urea-SCR Technology for US Heavy Duty Trucks” SAE paper 010190 2000
- Asanuma Takamitsu Takeshima Shinichi Yamashita Tetsuya Tanaka Toshiaki Murai Toshimi Iguchi Satoshi “Influence of Sulfur Concentration on NOx Storage - Reduction Catalyst” SAE paper 013501 1999
- Fact Sheet (EPA 420-F-00-022) “Proposed Heavy-Duty Engine and Vehicle Standards and Highway Diesel Fuel Sulfur Control Requirements” 2000
- European Commission, DG Environment May 27 Press Release 2000
- Strehlau Wolfgang Göbel Ulrich Lox Egbert Müller Wilfried Domesle Rainer European Patent EP 0 945 608 A2 1999
- Parks J.E. II Watson J.A. Campbell G.L. Wagner G.J. Campbell L.E. “Sulfur Sorbate Catalysts for Diesel Aftertreatment: Temperature Effects on the Release of Sulfur” SAE paper 011932 2000
- Mao Frank F. “Fundamentals of Sulfur Traps for Diesel Engine Emission Control” 6 th Diesel Engine Emissions Reduction Workshop San Diego 2000
- Bailey Owen H. Dou Danan Molinier Michel “Sulfur Traps for NOx Adsorbers: Materials Development and Maintenance Strategies for their Application” SAE paper 011205 2000
- West Brian H. Sluder C. Scott “NOx Adsorber Performance in a Light-Duty Diesel Vehicle” SAE paper 012912 2000
- Diesel Emission Control Sulfur Effects (DECSE) Program Phase I Interim Data Report No.2: NOx Adsorber Catalysts 1999
- European Patent EP 0 893 154 A2 1999
- Dou Danan Bailey Owen H. “Investigation of NOx Adsorber Catalyst Deactivation” SAE paper 982594 1998
- Hodjati Sh. Semelle F. Moral N. Bert C. Rigaud M. “Impact of Sulphur on the NOx Trap Catalyst Activity-Poisoning and Regeneration Behaviour” SAE paper 011874 2000
- “German Government Calls for Particulate Traps on Diesel Cars” Umweltbundesamt August 05 Press Release 1999 “California ARB Releases Draft Risk Reduction Plan for Diesel PM Emissions” California ARB July 14 Press Release 2000
- Diesel Emission Control Sulfur Effects (DECSE) Program Phase II Summary Report: NOx Adsorber Catalysts 2000