This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Improvement of NOx Reduction Rate of Urea-SCR System by NH3 Adsorption Quantity Control
Technical Paper
2008-01-2498
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
A urea SCR system was combined with a DPF system to reduce NOx and PM in a four liters turbocharged with intercooler diesel engine. Significant reduction in NOx was observed at low exhaust gas temperatures by increasing NH3 adsorption quantity in the SCR catalyst. Control logic of the NH3 adsorption quantity for transient operation was developed based on the NH3 adsorption characteristics on the SCR catalyst. It has been shown that NOx can be reduced by 75% at the average SCR inlet gas temperature of 158 deg.C by adopting the NH3 adsorption quantity control in the JE05 Mode.
Recommended Content
Authors
Topic
Citation
Murata, Y., Tokui, S., Watanabe, S., Daisho, Y. et al., "Improvement of NOx Reduction Rate of Urea-SCR System by NH3 Adsorption Quantity Control," SAE Technical Paper 2008-01-2498, 2008, https://doi.org/10.4271/2008-01-2498.Also In
References
- Wirojsakunchai Ekathai Schroeder Eric Schmidt Niklas Kolodziej Christopher P. Foster David Root Thatcher Kawai Terunao Suga Toshiyuki Nevius Tim Kusaka Takeshi “Detailed Diesel Exhaust Particulate Characterization and Real-Time DPF Filtration Efficiency Measurements during PM Filling Process” SAE paper 2007-01-0320 2007
- Ido Takahiko Ogyu Kazutake Ohira Akihiro Hayashi Masayuki Ohno Kazushige Konstandopoulos Athanasios G. “Study on the Filter Structure of SiC-DPF with Gas Permeability for Emission Control” SAE paper 2005-01-0578 2005
- Itabashi Shigeru Niimi Kuniaki Kamoshita Shinji Oda Tomihisa Shoji Akira Hirota Shinya Watanabe Tetsu “Study of Improvements in NOx Reduction Performance on Simultaneous Reduction System of PM and NOx” SAE paper 2005-01-3884 2005
- Yoshida Kohei Asanuma Takamitsu Nishioka Hiromasa Hayashi Kotaro Hirota Shinya “Development of NOx Reduction System for Diesel Aftertreatment with Sulfur Trap Catalyst” SAE paper 2007-01-0237 2007
- Tsumagari Ichiro Hirabayashi Hiroshi Takenaka Yoshihide Hosoya Mitsuru Shimoda Masatoshi “Study of 2-LEG NOx storage-Reduction Catalyst System for HD Diesel Engine” SAE paper 2006-01-0211 2006
- Hirata Kiminobu Masaki Nobuhiko Ueno Hiroki Akagawa Hisashi “Development of Urea-SCR System for Heavy-Duty Commercial Vehicles” SAE paper 2005-01-1860 2005
- Hosoya Mitsuru Kawada Yoshihiro Sato Shinya Shimoda Masatoshi “The Study of NOx and PM Reduction Using Urea Selective Catalytic Reduction System for Heavy Duty Diesel Engine” SAE paper 2007-01-1576 2007
- Cavataio Giovanni Girard James Patterson Joseph Eli Montreuil Clifford Cheng Yisun Lambert Christine K. “Laboratory Testing of Urea-SCR Formulation to Meet Tier 2 Bin 5 Emissions” SAE paper 2007-01-1575 2007
- Ishii Hajime Suzuki Hisakazu Hori Shigeo Goto Yuichi “Emissions Characteristics of a Urea SCR System under the NOx Level of Japanese 2009 Emission Regulation” SAE paper 2007-01-3996 2007
- Ishii Hajime Suzuki Hisakazu “Emission Characteristics of a Urea SCR System under Catalysts Activated and De-Activated Conditions” SAE paper 2006-01-0639 2006
- Grossale Antonio Nova Isabella Tronconi Enrico Chatterjee Daniel Weibel Michel “The Chemistry of the NO/NO 2 -NH 3 “Fast” SCR Reaction over Fe-ZSM5 Investigated by Transient Reaction Analysis” Journal of Catalysis 256 312 322 2008