The impacts of simulated exhaust gas recirculation on the oxidative reactivity of diesel soot

Khalid Al-Qurashi*, André L. Boehman

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Recent findings in our laboratory show that fuel formulation can affect the oxidative reactivity of the soot. The inclusion of biodiesel in the fuel lowers the ignition temperature of soot and consequently lowers the temperature required for regeneration of the DPF and this was attributed to the high surface oxygen content of biodiesel soot. In addition, the oxidation rate of biodiesel was found to be two times faster than that of diesel soot. In this paper we present a potential method to improve the regenerability of the DPF by enhancing the oxidative reactivity of diesel soot. We show that EGR can be utilized to generate more reactive soot. Carbon dioxide CO2 was used to simulate particle free and cold EGR, which is proposed as a possible pathway to generate soot that is more prone to oxidize in DPF.

Original languageEnglish (US)
Title of host publicationAbstracts of Papers - 232nd American Chemical Society Meeting and Exposition
StatePublished - 2006
Externally publishedYes
Event232nd American Chemical Society Meeting and Exposition - San Francisco, CA, United States
Duration: Sep 10 2006Sep 14 2006


Other232nd American Chemical Society Meeting and Exposition
CountryUnited States
CitySan Francisco, CA

ASJC Scopus subject areas

  • Chemistry(all)

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