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Modeling of the Catalyzed Continuously Regenerating Diesel Particulate Filter (CCR-DPF) System: Model Development and Passive Regeneration Studies
Technical Paper
2007-01-0043
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Particulate Matter (PM) emissions are of increasing importance, as diesel emissions legislation continues to tighten around the world. Diesel PM can be controlled using Diesel Particulate Filters (DPFs), which can effectively reduce the level of carbon (soot) emissions to ambient background levels.
The Johnson Matthey Continuously Regenerating Trap (CRT®) [1], which will be referred to as the Continuously Regenerating DPF (CR-DPF) for the remainder of this paper, has been widely applied in Heavy Duty Diesel (HDD) applications, and has been proved to have outstanding field durability [2]. To widen the potential application of this system, addition of a platinum based catalyst to the DPF has been shown to lead to a higher PM removal rate under passive regeneration conditions, using the NOx contained in the exhaust gases. This Catalyzed DPF (CDPF) in combination with an upstream Diesel Oxidation Catalyst (DOC) is known as a Catalyzed Continuously Regenerating Trap (CCRT®) [3], and will henceforth be referred to as the CCR-DPF.
A model describing the performance of the CCR-DPF has been developed. This model comprises a 1-D DOC model based on laboratory microreactor data, and a 1-D single channel pair model of a catalyzed DPF. The latter itself is made up of two parts: i) a model describing axial flow in the channels, and temperature effects in the filter; and ii) a description of soot accumulation and removal, NO oxidation within the filter wall, and NO2 diffusion from the wall to the soot cake. Langmuir-Hinshelwood expressions were employed to describe the platinum based DOC reaction kinetics; this model has been validated using engine bench data. The catalyzed DPF model has also been validated using engine bench data.
These two models have been combined to create a full model of the CCR-DPF system, which can be used to aid in system design for many applications.
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Authors
- Andrew P.E. York - Johnson Matthey Technology Centre
- Mehrdad Ahmadinejad - Johnson Matthey Technology Centre
- Timothy C. Watling - Johnson Matthey Technology Centre
- Andrew P. Walker - Johnson Matthey, Environmental Catalysts and Technologies
- Julian P. Cox - Johnson Matthey, Environmental Catalysts and Technologies
- Jane Gast - Johnson Matthey, Environmental Catalysts and Technologies
- Philip G. Blakeman - Johnson Matthey, Environmental Catalysts and Technologies
- Ronny Allansson - Johnson Matthey, Environmental Catalysts and Technologies
Citation
York, A., Ahmadinejad, M., Watling, T., Walker, A. et al., "Modeling of the Catalyzed Continuously Regenerating Diesel Particulate Filter (CCR-DPF) System: Model Development and Passive Regeneration Studies," SAE Technical Paper 2007-01-0043, 2007, https://doi.org/10.4271/2007-01-0043.Also In
References
- Cooper B.J. Jung H.J. Thoss J.E. US Patent 4,902,487 1990
- Allansson R. Cooper B.J. Thoss J.E. Uusimäki A.J. Walker A.P. Warren J.P. SAE Paper No. 2000-01-0480 2000
- Allansson R. Blakeman P.G. Cooper B.J. Hess H. Silcock P.J. Walker A.P. SAE Paper No. 2002-01-0428 2002
- York A.P.E. Cox J.P. Watling T.C. Walker A.P. Bergeal D. Allansson R. Lavenius M. SAE Paper No. 2005-01-0954 2005
- Ansell G.P. Bennett P.S. Cox J.P. Frost J.C. Gray P.G. Jones A.-M. Rajaram R.R. Walker A.P. Litorell M. Smedler G. Appl. Catal. B: Environ. 10 1996 183
- Evans J.M. Ansell G.P. Brown C.M. Cox J.P. Lafyatis D.S. Millington P.J. SAE Paper No. 1999-01-3472 1999
- Ullah U. Waldram S.P. Bennett C.J. Truex T.J. Chem. Eng. Sci. 47 1992 2413
- Bissett E.J. Chem. Eng. Sci. 39 1984 1233
- Konstandopoulos A.G. Kostoglou M. Skaperdas E. Papaioannou E. Zarvalis D. Kladopoulou E. SAE Paper No. 2000-01-1016 2000
- Konstandopoulos A.G. Kostoglou M. 121 2000 488
- Konstandopoulos A.G. Skaperdas E. Masoudi M. SAE Paper No. 2001-01-0909 2001
- Konstandopoulos A.G. Skaperdas E. Masoudi M. SAE Paper No. 2002-01-1015 2002
- Konstandopoulos A.G. Johnson J.H. SAE Paper No. 890405 1989
- Kandylas I.P. Koltsakis G.C. Ind. Eng. Chem. Res. 41 2002 2115
- Zhang Z. Yang S.L. Johnson J.H. SAE Paper No. 2002-01-1019 2002
- Rumpf H. Gupte A.R. Chemie-Ing. Techn. 43 1971 367
- Huynh C.T. Johnson J.H. Yang S.L. Bagley S.T. Warner J.R. SAE 2003-01-0841 2003
- Haralampous O.A. Koltsakis G.C. Samaras Z.C. Vogt C.-D. Ohara E. Watanabe Y. Mizutani T. SAE Paper No. 2004-01-0696 2004
- www.dieselnet.com/tg.html 2004
- Fogler H.S. “Elements of Chemical Engineering” 2nd 1992