Effects of fuel properties on diesel particulate emissions

Kyeong O. Lee*, Seung Y. Yang

*Corresponding author for this work

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

Abstract

Detailed morphology, nanostructures, and fractal geometry of diesel nano-particulates were analyzed with different properties of diesel fuel, such as sulfur, paraffins, aromatics, and naphthene. Particulate samples collected by a novel thermophoretic sampling system were observed by using a high-resolution transmission electron microscope (HRTEM) and quantitatively analyzed by using a digital image processing/data acquisition system. The results showed strong correlations between sizes and total particulate matter (PM) emissions in aromatics and sulfur contents, while fuels with low aromatic and naphthene levels generated lower PM mass emissions. The nature of chain-like particle shape was not significantly changed with variation of fuel properties, although particulate sizes appeared to be smaller than those from a standard number-2 diesel fuel. A HRTEM examination for particles from the iso-paraffin-enriched fuel revealed the presence of multi-soot nuclei on individual primary particles. From combustion of cerium additive mixed with diesel fuel, additional cerium oxide nano-particles (1 - 8 nm) appeared to be emitted.

Original languageEnglish (US)
Title of host publicationAmerican Chemical Society - 236th National Meeting and Exposition, Abstracts of Scientific Papers
StatePublished - 2008
Externally publishedYes
Event236th National Meeting and Exposition of the American Chemical Society, ACS 2008 - Philadelpia, PA, United States
Duration: Aug 17 2008Aug 21 2008

Other

Other236th National Meeting and Exposition of the American Chemical Society, ACS 2008
CountryUnited States
CityPhiladelpia, PA
Period08/17/0808/21/08

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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