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Development of a Numerical Model to Predict the Impact of Phosphorus on Flow through Aftertreatment Components
Technical Paper
2012-01-1299
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A predictive numerical model was developed to determine the
impact of phosphorus exposure on the performance of flow through
aftertreatment components such as Diesel Oxidation Catalysts (DOC)
or Selective Catalytic Reduction (SCR) catalysts. The model is able
to successfully determine the distribution of the phosphorus over
the catalyst as a function of the aging history (temperature, flow
rates, oil consumption rate, phosphorus content of the oil) as well
as the component properties (diameter, length, cell density, wall
thickness).
The model then incorporates this information regarding the
distribution of phosphorus over the catalyst surface to determine
the impact of the phosphorus exposure on the overall catalytic
activity. The model results were successfully validated using
accelerated bench aging tests for the oxidation of hydrocarbons
over DOC's and NH₃ oxidation and NOx reduction over SCR
catalysts.
The modeling approach and methodology should, however, be
readily extendable to wall flow aftertreatment components such as
Diesel Particulate Filters (DPF) as well as other flow through
components such as Lean NOx Traps (LNT's) that were not
included in this study.
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Authors
Citation
Chavannavar, P., "Development of a Numerical Model to Predict the Impact of Phosphorus on Flow through Aftertreatment Components," SAE Technical Paper 2012-01-1299, 2012, https://doi.org/10.4271/2012-01-1299.Also In
References
- Barnes, A. M. Bartle, K. D. Thibon, W. R. A. “A review of zinc dialkyldithiophosphates (ZDDPS): characterization and role in the lubricating oil,” Tribology International 34 6 June 2001 389 395
- Bunting, B. More, K. Lewis, S. Toops, T. “Phosphorous Poisoning and Phosphorous Exhaust Chemistry with Diesel Oxidation Catalysts,” SAE Technical Paper 2005-01-1758 2005 10.4271/2005-01-1758
- Darr, S. Choksi, R. Hubbard, C. Johnson, M. et al. “Effects of Oil-Derived Contaminants on Emissions from TWCEquipped Vehicles,” SAE Technical Paper 2000-01-1881 2000 10.4271/2000-01-1881
- Xu, L. McCabe, R. Hubbard, C. Dennis, R. et al. “Impact of Oil Consumption Modes and Pathways on Oil-Derived Catalyst Deposits,” SAE Technical Paper 2007-01-1072 2007 10.4271/2007-01-1072
- Sumida, H. Koda, Y. Sadai, A. Ichikawa, S. et al. “Analysis of Phosphorus Poisoning on Exhaust Catalysts from Compact- Class Vehicle,” SAE Technical Paper 2004-01-0147 2004 10.4271/2004-01-0147
- Klimczak, M. Kern, P. Heinzelmann, T. Lucas, M. Claus, P. “High-throughput study of the effects of inorganic additives and poisons on NH3-SCR catalysts - Part I: V 2 O 5 -WO 3 /TiO 2 catalysts,” Applied Catalysis B: Environmental 95 2010 39 47
- Kern, P. Klimczak, M. Heinzelmann, T. Lucas, M. Claus, P. “High-throughput study of the effects of inorganic additives and poisons on NH3-SCR catalysts - Part II: Fe-zeolite catalysts,” Applied Catalysis B: Environmental 95 2010 48 56
- Eaton, S. Nguyen, K. Bunting, B. “Deactivation of Diesel Oxidation Catalysts by Oil-Derived Phosphorus,” SAE Technical Paper 2006-01-3422 2006 10.4271/2006-01-3422
- Shibata, M. Nagata, H. Takeshima, S. Hoshino, K. “A Study of Engine Oil Composition Effects on Zeolite-type SCR Catalyst Durability,” SAE Technical Paper 2007-01-1924 2007 10.4271/2007-01-1924
- Nagata, M. Tanaka, Y. “Modeling of Phosphorus Poisoning Phenomena over Diesel Oxidation Catalysts,” SAE Technical Paper 2010-01-0884 2010 10.4271/2010-01-0884
- Silver, R. G. Stefanick, M. O. Todd, B. I. “A study of chemical aging effects on HDD Fe-zeolite SCR catalyst,” Catalysis Today 136 2008 28 33
- Disdale, W. Roberts, C. Benjamin, S. “Modelling of Phosphorus Poisoning Using Computational Fluid Dynamics and its Effect on Automotive Catalyst Performance,” SAE Technical Paper 2004-01-1889 2004 10.4271/2004-01-1889
- Satterfield, C. N. “Mass Transfer in Heterogenous Catalysis,” Colonial Press Inc. Clinton, Massachusetts 1970 10