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Aging of Zeolite Based Automotive Hydrocarbon Traps
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 16, 2007 by SAE International in United States
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This paper analyzes the aging of zeolite based hydrocarbon traps to guide development of diagnostic algorithms. Previous research has shown the water adsorption ability of zeolite ages along with the hydrocarbon adsorption ability, and this leads to a possible diagnostic algorithm: the water concentration in the exhaust can be measured and related to aging. In the present research, engine experiments demonstrate that temperature measurements are also related to aging. To examine the relationship between temperature-based and moisture-based diagnostic algorithms, a transient, nonlinear heat and mass transfer model of the exhaust during cold-start is developed. Despite some idealizations, the model replicates the qualitative behavior of the exhaust system. A series of parametric studies reveals the sensitivity of the system response to aging and various noise factors. The results of the sensitivity study show good agreement with previous research, and the results demonstrate a tight relationship between transient temperature and transient water concentration. Finally, some comments are made about application to the SULEV standards.
CitationKostek, T. and Franchek, M., "Aging of Zeolite Based Automotive Hydrocarbon Traps," SAE Technical Paper 2007-01-1058, 2007, https://doi.org/10.4271/2007-01-1058.
- Yamazaki Hideharu Endo Tetsuo Ueno Masaki Sugaya Satoshi Research on HC adsorption emission system SAE Paper 2004-01-1273 2004
- Roland Eckehart Kleinschmidt Peter Wolfgang ZN Ullmann's Encyclopedia of Industrial Chemistry A 28 475 504 Wiley-VCH 1985
- Corbo P. Migliardini F. Caputo D. Iucolano F. Colella C. Hydrocarbon adsorbers for reducing cold-start emission SAE Paper 2000-01-3094 2000
- Caputo D. Corbo P. Iucolano F. Migliardini F. Zeolite-based adsorbers for reducing light hydrocarbon emisions from engine exhaust Separation Science and Technology 39 7 1547 1561 2004
- Meier W.M. Olson D.H. Atlas of Zeolite Structure Types Butterworth-Heinemann third 1992
- Gregg S.J. Sing K.S. Adsorption, Surface Area, and Porosity Academic Press second 1982
- Lafyatis David S. Ansell Graham P. Bennett Steven C. Frost Jonathan C. Millington Paul J Rajaram Raj R. Walker Andrew P. Ballinger Todd H. Ambient temperature light-off for automobile emission control Applied Catalysis B: Environmental 18 123 135 1998
- Kostek Theodore M. Aging of Zeolite Based Hydrocarbon Traps with Applications to Diagnostics Purdue University 2005
- Fedorov Andrei Combined Heat and Mass Transfer and Adsorption Dynamics in a Honeycomb Adsorbent Purdue University 1997
- Fedorov A. Viskanta R. Heat and mass transfer aspect of gas separation by adsorption Journal of the Heat Transfer Socieity of Japan 36 4 11 1997