Influence of soot surface changes on DPF regeneration

Howard L. Fang; Michael J. Lance

doi:10.4271/2004-01-3043

Influence of soot surface changes on DPF regeneration

Howard L. Fang, Michael J. Lance

Nuclear Energy Materials Microanalysis

Cummins Inc.

Research output: Contribution to journal › Conference article › peer-review

31 Scopus citations

Abstract

Soot oxidation has been a critical issue for regeneration of diesel particulate filters (DPFs). The design of the regeneration strategy and the durability requirement for DPFs depend on an understanding of soot burning. Raman and thermal analysis have been used to monitor surface configuration changes. Under thermal aging, engine soot undergoes a transformation from a mostly amorphous carbon structure into more orderly polyaromatic structures which exhibit resistance towards oxidation. Certain neutralization products, such as thio-phosphorous and phosphorous derivatives, can also alter the thermal behavior of soot through interactions between ash and soot adsorbed species. The incomplete regeneration can be attributed to a buildup of a physical barrier that prevents oxygen or NO₂ from diffusing effectively onto the carbon surface.

Original language	English
Journal	SAE Technical Papers
DOIs	https://doi.org/10.4271/2004-01-3043
State	Published - 2004
Event	Powertrain and Fluid Systems Conference and Exhibition - Tampa, FL, United States Duration: Oct 25 2004 → Oct 28 2004

Access to Document

10.4271/2004-01-3043

Cite this

@article{b0ef2593fdda45f08a65f0a284b88eb7,

title = "Influence of soot surface changes on DPF regeneration",

abstract = "Soot oxidation has been a critical issue for regeneration of diesel particulate filters (DPFs). The design of the regeneration strategy and the durability requirement for DPFs depend on an understanding of soot burning. Raman and thermal analysis have been used to monitor surface configuration changes. Under thermal aging, engine soot undergoes a transformation from a mostly amorphous carbon structure into more orderly polyaromatic structures which exhibit resistance towards oxidation. Certain neutralization products, such as thio-phosphorous and phosphorous derivatives, can also alter the thermal behavior of soot through interactions between ash and soot adsorbed species. The incomplete regeneration can be attributed to a buildup of a physical barrier that prevents oxygen or NO2 from diffusing effectively onto the carbon surface.",

author = "Fang, {Howard L.} and Lance, {Michael J.}",

year = "2004",

doi = "10.4271/2004-01-3043",

language = "English",

journal = "SAE Technical Papers",

issn = "0148-7191",

publisher = "SAE International",

note = "Powertrain and Fluid Systems Conference and Exhibition ; Conference date: 25-10-2004 Through 28-10-2004",

}

TY - JOUR

T1 - Influence of soot surface changes on DPF regeneration

AU - Fang, Howard L.

AU - Lance, Michael J.

PY - 2004

Y1 - 2004

N2 - Soot oxidation has been a critical issue for regeneration of diesel particulate filters (DPFs). The design of the regeneration strategy and the durability requirement for DPFs depend on an understanding of soot burning. Raman and thermal analysis have been used to monitor surface configuration changes. Under thermal aging, engine soot undergoes a transformation from a mostly amorphous carbon structure into more orderly polyaromatic structures which exhibit resistance towards oxidation. Certain neutralization products, such as thio-phosphorous and phosphorous derivatives, can also alter the thermal behavior of soot through interactions between ash and soot adsorbed species. The incomplete regeneration can be attributed to a buildup of a physical barrier that prevents oxygen or NO2 from diffusing effectively onto the carbon surface.

AB - Soot oxidation has been a critical issue for regeneration of diesel particulate filters (DPFs). The design of the regeneration strategy and the durability requirement for DPFs depend on an understanding of soot burning. Raman and thermal analysis have been used to monitor surface configuration changes. Under thermal aging, engine soot undergoes a transformation from a mostly amorphous carbon structure into more orderly polyaromatic structures which exhibit resistance towards oxidation. Certain neutralization products, such as thio-phosphorous and phosphorous derivatives, can also alter the thermal behavior of soot through interactions between ash and soot adsorbed species. The incomplete regeneration can be attributed to a buildup of a physical barrier that prevents oxygen or NO2 from diffusing effectively onto the carbon surface.

UR - http://www.scopus.com/inward/record.url?scp=85072416229&partnerID=8YFLogxK

U2 - 10.4271/2004-01-3043

DO - 10.4271/2004-01-3043

M3 - Conference article

AN - SCOPUS:85072416229

SN - 0148-7191

JO - SAE Technical Papers

JF - SAE Technical Papers

T2 - Powertrain and Fluid Systems Conference and Exhibition

Y2 - 25 October 2004 through 28 October 2004

ER -

Influence of soot surface changes on DPF regeneration

Abstract

Access to Document

Other files and links

Fingerprint

Cite this