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A Fundamental Consideration on NOx Adsorber Technology for DI Diesel Application
Technical Paper
2002-01-2889
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Diesel engines are far more efficient than gasoline engines of comparable size, and emit less greenhouse gases that have been implicated in global warming. In 2000, the US EPA proposed very stringent emissions standards to be introduced in 2007 along with low sulfur (< 15 ppm) diesel fuel. The California Air Resource Board (CARB) has also established the principle that future diesel fueled vehicles should meet the same low emissions standards as gasoline fueled vehicles and the EPA followed suit with its Tier II emissions regulation. Achieving such low emissions cannot be done through engine development and fuel reformulation alone, and requires application of NOx and particulate matter (PM) aftertreatment control devices. There is a widespread consensus that NOx adsorbers and particulate filter are required in order for diesel engines to meet the 2007 emissions regulations for NOx and PM.
In this paper, the key exhaust characteristics from an advanced diesel engine are reviewed. Development of the NOx adsorber technology is discussed. Spectroscopic techniques are applied to understand the underlying chemical reactions over the catalyst surface during NOx trapping and regeneration periods. In-situ surface probes are useful in providing not only thermodynamic and kinetics information required for model development but also a fundamental understanding of storage capacity and degradation mechanisms. The distribution of various nitration/sulfation species is related to surface basicity. Surface displacement reactions of carbonates also play roles in affecting the trapping capability of NOx adsorbers. When ultralow-S fuel is used as a reductant during the regeneration, sulfur induced performance degradation is still observed in an aged catalyst. Other possible sources related to catalyst deactivation include incomplete reduction of surface nitration, coke formation derived from incomplete hydrocarbon burning, and lubricant formulations. Sulfur management and the direction of future work for the successful implementation of such integrated engine and aftertreatment technology are discussed.
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Fang, H., Huang, S., Yu, R., Wan, C. et al., "A Fundamental Consideration on NOx Adsorber Technology for DI Diesel Application," SAE Technical Paper 2002-01-2889, 2002, https://doi.org/10.4271/2002-01-2889.Also In
References
- Hsiao, M.C. Merritt, B.T. Voigtlin, G.E. “Fundamentals Limits on Gas-Phase Chemical Reduction of NO X in a Plasma” Diesel Engine Emissions Workshop July 1997 Hsiao, M.C. Penetrante, B.M. Merritt, B.T. Voigtlin, G.E. “Plasma Assisted Heterogeneous Catalysis for NO X Reduction in Lean-burn Engine Exhausts” Diesel Engine Emissions Workshop 1997
- Penetrante, B.M. Brusasco, R.M. Merritt, B.T. Pitz, W.J. Vogtlin, G.E. Kung, M.C. Kung, H.H. Wan, C.Z. Voss, K.E. “Plasma Assisted Catalytic Reduction of NOx” SAE 982508 Hammer, T. Broer, S. “Plasma Enhanced Selective Catalytic Reduction of NO X for Diesel Cars” SAE 982428 1998
- Penetrante, B.M. “Limiting Factors and Effect of Sulfur on Plasma-Assisted Catalytic Reduction of NO X in Light-Duty Vehicle Exhaust” Diesel Engine Emissions Workshop July 1999 Penetrante, B.M. Brusasco, R.M. Merrit, B.T. Vogtlin, G.E. “Sulfur Tolerance of Selective Partial Oxidation of NO to NO 2 in Non-Thermal Plasma for Exhaust Emission Control: NO X , HC, and Particulates” SAE 1999-01-3687 1999
- Konig, A et al. “Research Results on Processes and Catalyst Materials for Lean NO X Conversion” SAE 962041 1996
- Arakawa, K. Matsuda, S. Kinoshita, H. “Progress in Sulfur Poisoning Resistance of Lean NO X Catalysts” SAE 980930 1998
- Iwasaki, M. Ikeya, N. Itoh, M. Itoh, M. “Development of Zeolite Catalyst to Remove Diesel NO X ” SAE958386 1995
- Bunting, B.G. Cunningham, M.J. Miller, R.K. “A Diesel Perspective on Lean NO X Catalysts” Diesel Engine Emissions Workshop July 1998
- Mital, R. Huang, S.C Stroia, B.J. Yu, R.C. Wan, C.Z. “A Study of Lean NO X Technology for Diesel Emission Control” SAE 2002-01-0956 2002
- Miller, R.K. Cunningham, M.J. Ren, S. “Future Application of Catalyzed Soot Filters” Diesel Engine Emissions Workshop July 1998
- Farrauto, R.J. Mooney, J.J. “Effects of Sulfur on Performance of Catalytic Aftertreatment Devices” SAE 920557 1992
- Mooney, J. Wolfgang, J. “Save the Diesel Fueled Engine: A Clean Diesel Engine with Catalytic Aftertreatment-The alternative to Alternative Fuels” April 1993
- Popuri, S. et al. “Development of a Microwave Assisted Regeneration System for A Ceramic Diesel Particulate Trap System” SAE 1999-01-3565 1999
- Nixdorf, R.D. et al. “Microwave-regenerated Diesel Exhaust Particulate Filter” SAE 2001-01-0903 2001
- Cooper, B.J. Thoss, J.E. “Role of NO in Diesel Particulate Emission Control” SAE 890404 1989
- DECSE 2000 “Phase I Interim Data Report No. 4: Diesel Particulate Filters” U.S. DOE January 2000
- Cunningham, M.J. “NO X Adsorber Catalysts Applied to Heavy Duty Diesel Test Cycles” Diesel Engine Emissions Workshop July 1999
- Guyon, M. Blejean, F. Bert, C. Le Faou, P. “Impact of Sulfur on NO X Trap Catalyst activity - Study of the Regeneration Conditions” SAE 982607 1998
- Kobayashi, S. Nakajima, T. Hori, M. “Effect of Fuel Sulfur and Aromatics on Diesel Exhaust Emissions” SAE918221 1991
- Sumiya, S. Makino, S. Ogasawara, K. “Catalytic NO X Reduction by Diesel Fuel Spray Method” SAE4-14-2-82 1993
- Bailey, O. Dou, D. Denison, G.W. “Regeneration Strategies for NO X Adsorber Catalysts” SAE 972845 1997
- Armor, J.N. Appl.Catal. B:Environ. 1 221 1992 Fritz, A. Pitchon, V. Appl.Catal. B:Environ. 13 1 1997
- Heck, R.M. Farrauto, R.J. “Catalytic Air Pollution Control-Commercial Technology” Van Nostrand Reinhold New York 1995
- Heck, R.M. Catal. Today 53 519 1999 Forzatti, P. Catal. Today 62 51 2000
- Coronado, J.M. Anderson, J.A. J. Mol. Catal. A138 1999
- Rodriguez, J.A. Jirsak, T. Hrbek, J. J. Phys. Chem. B103 1966 1999 Mitchell, M.B. Sheinker, V.K. White, M.G. J. Phys. Chem. 100 7550 1996 Waqif, M. Lavalley, J-C Perathoner, S. Centi, G. J. Phys. Chem. 95 4051 1991
- Captain, D.K. Amiridis, M.D. J. Catal. 184 377 1999 Fridell, E. Skoglundh, M. Westerberg, B. Johansson, S. Smedler, G. J. Catal. 183 196 1999 Kijlstra, S. Brands, D.S. Poels, E.K. Bliek, A. J. Catal. 171 208 1997 Centi, G. Perathoner, S. Biglino, D. Giamello, E. J. Catal. 151 75 1995
- Grasselli, J.G. Bulkin, B.J. “Analytical Raman Spectroscopy” Wiley New York 1991
- Weber, W.H. “Raman Application in Catalysts for Exhaust Gas Treatment in Raman Scattering in Materials Science” Weber, W.H. Merlin, R. Springer Berlin 2000
- Wachs, I.E. Catal. Today 27 437 1996
- Knozinger, H. Ratnasamy, P. Catal. Rev. Sci. Eng. 17 31 1978
- Matsumoto, S. Catal. Today 29 43 1996 Takahashi, N. Catal. Today 27 63 1996 Meunier, F.C. Zuzaniuk, V. Breen, J.P. Olsson, M. Ross, J.R. Catal. Today 59 287 2000
- Waqif, M. Bazin, P. Saur, O. Lavalley, J-C Blanchard, G. Touret, O. Appl. Catal. B11 193 1997 Matsumoto, S. Ikeda, Y. Suzuki, H. Ogai, M. Miyoshi, N. Appl. Catal. B25 115 2000
- Waqif, M. Saad, A.M. Bensitel, M. Bachelier, J. Saur, O. Lavalley, J-C J. Chem. Soc. Faraday Trans. 88 2931 1992 Busca, G. Ramis, G. Lorenzelli, V. Janin, A. Lavalley, J-C Spectrochim. Acta 43A 489 1987 Degen, I.A. Newman, G.A. Spectrochim. Acta. 49A 859 1993
- Twu, J. Chuang, C.J. Chang, K.I. Yang. C.H. Chen, H. Appl. Catal. B12 309 1997
- Kobayashi, T. Yamada, T. Kayano, K. SAE 970745 1997
- Miyoshi, N. Matsumoto, S. Tanaka, K. Harada, J. Takahashi, J. Yokota, N. Sugiura, M. Kasahara, K. SAE 950809 1995
- Tuinstra, F. Koenig, J.L. J. Chem. Phys. 53 1126 1970 Sood, A.K. Gupta, R. Asher, S.A. Phys. Rev. B 2001
- Kelemen, S.R. Fang, H.L. Energy & Fuels 3 653 2001 Roberts, S. Tricker, P.M. Marshall, J.E. Org. Geochem. 23 223 1995
- Nemanich, R.J. Solin, S.A. Phys. Rev. B20 392 1979 Mathews, M.S. Pimenta, M.A. Dresselhaus, G. Dresselhaus, M.S. Endo, M. Phys. Rev. 59 6585 1999
- Thomas, J.M. Thomas, W.J. “Principles and Practice of Heterogeneous Catalysis” VCH New York 1997