NOx-Particulate Filter (NPF): Evaluation of an After-Treatment Concept to Meet Future Diesel Emission Standards

2004 ◽  
Author(s):  
Marco Ranalli ◽  
Stefan Schmidt ◽  
Lee Watts
Keyword(s):  
Particulate Filter ◽  
Treatment Concept ◽  
Emission Standards ◽  
Diesel Emission

Variable Valve Train Concept for Compliance with Future Diesel Emission Standards

MTZ worldwide ◽  
2021 ◽  
Vol 82 (2) ◽  
pp. 36-41
Author(s):  
Michael Elicker ◽  
Wolfgang Christgen ◽  
Jahaazeb Kiyanni ◽  
Maximilian Brauer
Keyword(s):  
Valve Train ◽  
Emission Standards ◽  
Variable Valve Train ◽  
Diesel Emission ◽  
Variable Valve

Meeting the US 2007 Heavy-Duty Diesel Emission Standards - Designing for the Customer

2007 ◽  
Author(s):  
Thomas A. Dollmeyer ◽  
David A. Vittorio ◽  
Thomas A. Grana ◽  
James R. Katzenmeyer ◽  
Stephen J. Charlton ◽  
...  
Keyword(s):  
Heavy Duty ◽  
Emission Standards ◽  
The Us ◽  
Diesel Emission ◽  
Heavy Duty Diesel

Development of the Mitsubishi TF07 Model Turbocharger for 1994 U.S. and 1993 European Diesel Emission Standards

1991 ◽  
Author(s):  
Takashi Mikogami ◽  
Eito Matsuo ◽  
Nobuyasu Matsudaira ◽  
Akira Hishikawa ◽  
Masaki Endoh
Keyword(s):  
Emission Standards ◽  
Diesel Emission

Experiences With CNG and LPG Operated Heavy Duty Vehicles With Emphasis on US HD Diesel Emission Standards

1988 ◽  
Author(s):  
Jouke van der Weide ◽  
Jan Jeen Seppen ◽  
Joep A.N. van Ling ◽  
Henk J. Dekker
Keyword(s):  
Heavy Duty ◽  
Emission Standards ◽  
Diesel Emission ◽  
Heavy Duty Vehicles

Worldwide diesel emission standards, current experiences and future needs

1996 ◽  
Vol 10 (1-3) ◽  
pp. 3-28 ◽  
Author(s):  
Paul Zelenka ◽  
Wolfgang Cartellieri ◽  
Peter Herzog
Keyword(s):  
Emission Standards ◽  
Future Needs ◽  
Diesel Emission

scholarly journals Study on the effect of Ce1-xMnxO2 catalyst on improving diesel emission performance

2020 ◽  
Vol 12 (3) ◽  
pp. 168781402091474
Author(s):  
He Huang ◽  
Xiao Zhang ◽  
Junheng Liu ◽  
Song Ye
Keyword(s):  
Working Conditions ◽  
Ceramic Body ◽  
Soot Oxidation ◽  
Diesel Emissions ◽  
Particulate Filter ◽  
Hydrocarbon Emissions ◽  
Exhaust Temperature ◽  
Diesel Emission ◽  
Passive Regeneration ◽  
Oxidation Efficiency

To reduce diesel emissions while permitting the passive regeneration of the diesel particulate filter (DPF) at low temperatures, we developed three after-treatment DPF devices. These devices consisted of a ceramic body that was either bare or loaded with the catalysts CeO2 (DPF-CeO2) or Ce0.5Mn0.5O2 (DPF-Ce0.5Mn0.5O2). The effects of these units on soot, NOx, CO, and hydrocarbon emissions were assessed. On average, the DPF-Ce0.5Mn0.5O2 device outperformed the DPF-CeO2 device. In addition, increasing the engine load was found to raise the exhaust temperature while increasing the soot oxidation efficiency and reducing soot emissions. The maximum soot removal percentages of the DPF-CeO2 and DPF-Ce0.5Mn0.5O2 were 37.6% and 55.1%, respectively, under B100 working conditions. The extent of NOx removal also gradually increased as the load increased, and the average removal percentages were 8.6% and 15.0%, respectively. Both catalytic devices lowered CO emissions to a much greater extent than the bare DPF, with average removals of 45.8% and 55.6%, respectively, while the average hydrocarbon oxidation values were 39.1% and 50.9%, respectively. Notably, the hydrocarbon emissions were almost zero after Ce1-xMnxO2 catalysis under C100 working conditions.

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