Catalysed diesel particulate filter: Study of the reactivity of soot arising from biodiesel combustion

Lamharess, Nora; Millet, Claire-Noelle; Starck, Laurie; Jeudy, Eric; Lavy, Jacques; Costa, Patrick Da

doi:10.1016/j.cattod.2011.01.011

Cited by 26 publications

(9 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It can thus be suggested that it is rather uncertain to predict differences in soot reactivity between biofuel and diesel soot solely on the basis of the primary particle size. It is also difficult to decide which one of the above soot nanostructural characteristics (a-d) is weighing more than the other, but the overall effect of the differences described above favors easier oxidation of the biofuel soot nanostructural features, in agreement with previous studies (Yezerets et al 2003;Song et al 2006;Knothe 2008;Vander Wal et al 2010;Lamharess et al 2011).…”

Section: Implications Of the Hrtem Resultssupporting

confidence: 73%

Microscopic investigation of soot and ash particulate matter derived from biofuel and diesel: implications for the reactivity of soot

et al. 2012

View full text Add to dashboard Cite

Investigation of soot and ash particulate matter deposited in diesel particulate filters (DPFs) operating with biofuel (B100) and diesel (pure diesel: B0 and diesel 80 /biofuel 20 blend: B20) by means of optical microscopy, scanning electron microscopy, and high resolution transmission electron microscopy (HRTEM) reveals the following: the rapeseed methyl ester biofuel used for this study contributes to ash production, mainly of Ca-Sand P-bearing compounds ranging in size between 50 and 300 nm. Smaller ash particles are less common and build aggregates. Ash is deposited on the inlet DPF surface, the inlet channel walls, and in B100-DPF at the plugged ends of inlet channels. The presence of Fe-Cr-Ni fragments, down to tens of nanometers in size within the ash is attributed to engine wear. Pt particles (50-400 nm large) within the ash indicate that the diesel oxidation catalyst (DOC) upstream of the DPF shows aging effects. Radial cracks on the coating layer of the DOC confirm this assumption. The B100-DPF contains significantly less soot than B20 and B0. Based on the generally accepted view that soot reactivity correlates with the nanostructure of its primary particles, the length and curvature of graphene sheets from biofuel-and diesel-derived soot were measured and computed on the basis of HRTEM images. The results show that biofuel-derived soot can be more easily oxidized than diesel soot, not only during early formation but also during and after considerable particle growth. Differences in the graphene sheet separation distance, degree of crystalline order and size of primary soot particles between the two fuel types are in line with this inference.

show abstract

Section: Implications Of the Hrtem Resultssupporting

confidence: 73%

Microscopic investigation of soot and ash particulate matter derived from biofuel and diesel: implications for the reactivity of soot

et al. 2012

View full text Add to dashboard Cite

show abstract

“…Although previous studies have compared soot reactivities according to biodiesel type and content [75][76][77][78], few information are available regarding the physical chemistry of the particles formed when biofuels are used. To our knowledge, few specific data are available regarding the impact of inorganic matter (K, or P) on soot oxidation.…”

Section: Diesel Particulate Filter (Dpf)mentioning

confidence: 99%

Biofuel Impact on Diesel Engine After-Treatment: Deactivation Mechanisms and Soot Reactivity

Iojoiu

Lauga

Abboud

et al. 2017

Emiss. Control Sci. Technol.

View full text Add to dashboard Cite

“…Its combustion also results in the formation of oxygenated soot with more amorphous structure, thus improving its reactivity by oxidation [17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Catalysed diesel particulate filter: Study of the reactivity of soot arising from biodiesel combustion

Cited by 26 publications

References 15 publications

Microscopic investigation of soot and ash particulate matter derived from biofuel and diesel: implications for the reactivity of soot

Microscopic investigation of soot and ash particulate matter derived from biofuel and diesel: implications for the reactivity of soot

Biofuel Impact on Diesel Engine After-Treatment: Deactivation Mechanisms and Soot Reactivity

Effect of Biodiesel impurities (K, Na, P) on non-catalytic and catalytic activities of Diesel soot in model DPF regeneration conditions

Contact Info

Product

Resources

About