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On-Road Demonstration of NOx Emission Control for Heavy-Duty Diesel Trucks using SINOx™ Urea SCR technology - Long-term Experience and Measurement Results
Technical Paper
2001-01-1931
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The Selective Catalytic Reduction (SCR) is one of the most efficient technologies to reduce nitrogen oxide (NOx) emissions arising from technical combustion processes [1,2]. For compliance with future emission limits for heavy-duty Diesel engines the SCR technology might play an important role [3]. In two long-term field demonstrations heavy duty (HD) trucks were equipped with SCR emission control systems (SINOx™-System) and were operated under daily working conditions.
A number of measurements of both the performance and the activity of the catalyst during the entire operation time were performed. On the engine test bench the NOx reduction at the beginning of the road test was compared to the NOx-reduction at the end of the program. The initial NOx remained unchanged within the measurement accuracy of the analyzing equipment. On-road measurements of the emissions were done using an analyzer test cell installed on the loading area of the truck. During the course of the demonstration program the catalyst activity was measured at defined test conditions in a bench scale reactor. Therefore catalyst samples were taken from the operating systems at certain mileages to monitor the activity of the catalyst as a function of operating time. Information about the deterioration of the catalysts allows for sizing the system accordingly to meet the emission requirements over the useful life. The results obtained demonstrate the capability of the SINOx™-System for NOx reduction and the long-term durability of the catalyst.
With the experience from the demonstration program the SINOx™-Filter was improved. By means of a catalyst with optimized properties the performance in NOx reduction could be improved further. On-road demonstration programs with the improved system are on the way in the US and more are planned.
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Amon, B. and Keefe, G., "On-Road Demonstration of NOx Emission Control for Heavy-Duty Diesel Trucks using SINOx™ Urea SCR technology - Long-term Experience and Measurement Results," SAE Technical Paper 2001-01-1931, 2001, https://doi.org/10.4271/2001-01-1931.Also In
References
- Hums E. “Is advanced SCR technology at a standstill? A provocation for the academic community and catalyst” Catal. Today 42 25 35 1998
- Heck R.M. “Catalytic abatement of nitrogen oxides-stationary applications” Catal. Today 53 579 523 1999
- Koebel M. Elsener M. Kleemann M. “Urea-SCR: a promising technique to reduce NOx emissions from automotive diesel engines Catal. Today 59 335 345 2000
- Cartillieri W. Havenith C. Huehn W. Peuster M. Zürbig J. Hofmann L. Reczek W. Sept. 28. -29. 2000
- Fritz N. Mathes W. Zuerbig J. Mueller R. “On-road demonstration of NOx emission control for Diesel trucks with SINOx urea SCR system” SAE 1999-01-0111 1999
- Hofmann L. Mathes W. Fischer S. “Die Entwicklung des SINOx-Systems für Nutzfahrzeuge zur Serienreife” Proceedings of the 20 th International Wiener Motoren Symposium May 6-7 1999
- Zuerbig J. “Das SINOx-System - Weiterentwicklung zur Serienreife Dresdener Motorenkolloquium 3 May 21-21 112 118 1999
- Miller W.R. Klein J.T. Mueller R. Doelling W. Zuerbig J. “The development of urea SCR technology for US heavy duty trucks” SAE 2000-01-0190 2000
- Hums E. “Understanding of deactivation behavior of DeNOx catalysts: a key to advanced catalyst applications” Kinet. Catal 39 603 606 1998
- Brodrick C.-J Farsh-Chi M. Dwyer H. Sperling D. Gouse S.W. Hoelzer J.C. Doelling W. “Urea-SCR System Demonstration and Evaluation for Heavy-Duty Diesel Trucks SAE 1999-01-3722 1999