Development of a surface area dependent rate expression for soot oxidation in diesel particulate filters

Josh A. Pihl; Jennifer A. Lewis; Todd J. Toops; Brad J. Adelman; Ed M. Derybowski

doi:10.1007/s11244-013-0005-6

Development of a surface area dependent rate expression for soot oxidation in diesel particulate filters

Josh A. Pihl, Jennifer A. Lewis, Todd J. Toops, Brad J. Adelman, Ed M. Derybowski

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

We collected soot from diesel engine exhaust on miniature particulate filter samples and evaluated soot oxidation rates on an automated flow reactor system. A series of isothermal pulsed oxidation experiments quantified reaction rates as a function of gas composition, temperature, flow rate, and soot consumption. An O₂ chemisorption method measured the soot active surface area as filter regeneration progressed. We developed a rate law with an explicit dependence on carbon surface area and estimated the associated kinetic parameters from the pulsed oxidation data. The resulting rate expression successfully captures the soot oxidation behavior over a wide range of operating conditions.

Original language	English
Pages (from-to)	499-503
Number of pages	5
Journal	Topics in Catalysis
Volume	56
Issue number	1-8
DOIs	https://doi.org/10.1007/s11244-013-0005-6
State	Published - May 2013

Funding

Acknowledgments This research was sponsored by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Vehicle Technologies Program. The authors thank program managers Ken Howden and Gurpreet Singh for their support. This manuscript has been authored by UT-Battelle, LLC, under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes.

Funders	Funder number
U.S. Department of Energy
Office of Energy Efficiency and Renewable Energy	DE-AC05-00OR22725

Keywords

Particulate filter
Soot oxidation
Surface area

Access to Document

10.1007/s11244-013-0005-6

Cite this

@article{721569ff6c3e4f1e83852bbb048766c3,

title = "Development of a surface area dependent rate expression for soot oxidation in diesel particulate filters",

abstract = "We collected soot from diesel engine exhaust on miniature particulate filter samples and evaluated soot oxidation rates on an automated flow reactor system. A series of isothermal pulsed oxidation experiments quantified reaction rates as a function of gas composition, temperature, flow rate, and soot consumption. An O2 chemisorption method measured the soot active surface area as filter regeneration progressed. We developed a rate law with an explicit dependence on carbon surface area and estimated the associated kinetic parameters from the pulsed oxidation data. The resulting rate expression successfully captures the soot oxidation behavior over a wide range of operating conditions.",

keywords = "Particulate filter, Soot oxidation, Surface area",

author = "Pihl, {Josh A.} and Lewis, {Jennifer A.} and Toops, {Todd J.} and Adelman, {Brad J.} and Derybowski, {Ed M.}",

year = "2013",

month = may,

doi = "10.1007/s11244-013-0005-6",

language = "English",

volume = "56",

pages = "499--503",

journal = "Topics in Catalysis",

issn = "1022-5528",

publisher = "Springer",

number = "1-8",

}

TY - JOUR

T1 - Development of a surface area dependent rate expression for soot oxidation in diesel particulate filters

AU - Pihl, Josh A.

AU - Lewis, Jennifer A.

AU - Toops, Todd J.

AU - Adelman, Brad J.

AU - Derybowski, Ed M.

PY - 2013/5

Y1 - 2013/5

N2 - We collected soot from diesel engine exhaust on miniature particulate filter samples and evaluated soot oxidation rates on an automated flow reactor system. A series of isothermal pulsed oxidation experiments quantified reaction rates as a function of gas composition, temperature, flow rate, and soot consumption. An O2 chemisorption method measured the soot active surface area as filter regeneration progressed. We developed a rate law with an explicit dependence on carbon surface area and estimated the associated kinetic parameters from the pulsed oxidation data. The resulting rate expression successfully captures the soot oxidation behavior over a wide range of operating conditions.

AB - We collected soot from diesel engine exhaust on miniature particulate filter samples and evaluated soot oxidation rates on an automated flow reactor system. A series of isothermal pulsed oxidation experiments quantified reaction rates as a function of gas composition, temperature, flow rate, and soot consumption. An O2 chemisorption method measured the soot active surface area as filter regeneration progressed. We developed a rate law with an explicit dependence on carbon surface area and estimated the associated kinetic parameters from the pulsed oxidation data. The resulting rate expression successfully captures the soot oxidation behavior over a wide range of operating conditions.

KW - Particulate filter

KW - Soot oxidation

KW - Surface area

UR - http://www.scopus.com/inward/record.url?scp=84877999493&partnerID=8YFLogxK

U2 - 10.1007/s11244-013-0005-6

DO - 10.1007/s11244-013-0005-6

M3 - Article

AN - SCOPUS:84877999493

SN - 1022-5528

VL - 56

SP - 499

EP - 503

JO - Topics in Catalysis

JF - Topics in Catalysis

IS - 1-8

ER -

Development of a surface area dependent rate expression for soot oxidation in diesel particulate filters

Abstract

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Cite this