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Catalytic Activity in the Regeneration of the Ceramic Diesel Particulate Trap
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Abstract
The rare occurrence during city driving of the exhaust temperature levels required for ceramic trap regeneration without catalytic aid, seems to be the main reason of delay in wide application of the trap. The use of catalysts seems to be more or less necessary. Study of the catalytic activity during trap regeneration had not been very effective so far. This holds equally true for the case of catalyzed trap as for the case of catalytic fuel additives. The lack of a satisfactory theory for the explanation and prediction of catalytic activity, directed international research and development towards the quest of the optimum catalyst, which could support a very simple and low-cost regeneration system. The new approach to the explanation of catalytic activity presented in this paper, denies the above assumption. The new approach, besides satisfactorily illuminating the experience up to now, gives birth to a useful computational tool for further development and optimization of ceramic smoke trap systems for a variety of applications.
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Pattas, K. and Michalopoulou, C., "Catalytic Activity in the Regeneration of the Ceramic Diesel Particulate Trap," SAE Technical Paper 920362, 1992, https://doi.org/10.4271/920362.Also In
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