Particulates Reduction in Diesel Engines Through the Combination of a Particulate Filter and Fuel Additive

Paper #:
  • 982654

Published:
  • 1998-10-19
Citation:
Vincent, M., Richards, P., and Cook, S., "Particulates Reduction in Diesel Engines Through the Combination of a Particulate Filter and Fuel Additive," SAE Technical Paper 982654, 1998, https://doi.org/10.4271/982654.
Pages:
14
Abstract:
Exhaust emissions legislation for diesel engines generally limits only the mass of emitted particulate matter. This limitation reflects the concerns and measurement technology at the time the legislation was drafted. However, evolving diesel particulate filter (DPF) systems offer the potential for reductions in the mass and more importantly, the number of particles emitted from diesel exhausts.Particulate filters require frequent cleaning or regeneration of accumulated soot, if the engine is to continue to operate satisfactorily. Exothermic reactions during regeneration can lead to severe thermal gradients in the filter system resulting in damage. Fuel additives have been evaluated to show significant reductions in light off temperature which allow frequent small regeneration events to occur, under mild operating conditions. The resulting small exotherms suggest that low back pressure filter systems giving frequent regenerations could in the future become as reliable in use as gasoline exhaust catalyst systems.
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