Generating Thermal Conditions to Regenerate a DPF: Impact of the Reductant on the Performances of Diesel Oxidation Catalysts

2009-01-1085

04/20/2009

Event
SAE World Congress & Exhibition
Authors Abstract
Content
The influence of the type of fuel and the feeding means to a DOC, in order to regenerate a DPF, was investigated. Diesel fuel in cylinder late post-injection was compared to the injection in the exhaust line, through an exhaust port injector, of diesel fuel, B10 (diesel fuel containing 10% of esters) and gasoline. Diesel fuel exhaust injection resulted in a deteriorated conversion efficiency, while the incorporation of esters to the diesel fuel was demonstrated to have no influence. Gasoline exhaust injection led to less HC slip than diesel fuels. Temperature dynamics resulting from injection steps showed taught that the shorter the hydrocarbons (within the tested fuels), the slower the response. These differences can be caught by simple models, leading to interesting opportunities for the model-based control of the DPF inlet temperature during active regenerations.
Meta TagsDetails
DOI
https://doi.org/10.4271/2009-01-1085
Pages
12
Citation
Frobert, A., Creff, Y., Lepreux, O., Schmidt, L. et al., "Generating Thermal Conditions to Regenerate a DPF: Impact of the Reductant on the Performances of Diesel Oxidation Catalysts," SAE Technical Paper 2009-01-1085, 2009, https://doi.org/10.4271/2009-01-1085.
Additional Details
Publisher
Published
Apr 20, 2009
Product Code
2009-01-1085
Content Type
Technical Paper
Language
English