Role of alternative fuels on particulate matter (PM) characteristics and influence of the diesel oxidation catalyst

Mohammed Fayad; Jose Herreros; Francisco Martos; Athanasios Tsolakis

doi:10.1021/acs.est.5b02447

Role of alternative fuels on particulate matter (PM) characteristics and influence of the diesel oxidation catalyst

Mohammed Fayad, Jose Herreros, Francisco Martos, Athanasios Tsolakis

Mechanical Engineering

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Abstract

The influence of a platinum:palladium (Pt:Pd)-based diesel oxidation catalyst (DOC) on the engine-out particulate matter (PM) emissions morphology and structure from the combustion of alternative fuels (including alcohol–diesel blends and rapeseed oil methyl ester (RME) biodiesel) was studied. PM size distribution was measured using a scanning mobility particulate spectrometer (SMPS), and the PM morphology and microstructure (including size distribution, fractal geometry, and number of primary particles) was obtained using high-resolution transmission electron microscopy (TEM). It is concluded that the DOC does not modify the size or the microstructural parameters of the primary particulates that make up the soot agglomerates. The PM reduction seen in the DOC is due to the trapping effect, and oxidation of the PM’s volatile components. The DOC performance in reducing gaseous (e.g., carbon monoxide (CO) and unburnt hydrocarbons (HCs)) and PM emissions at low exhaust temperatures was improved from the combustion of alternative fuels due to the reduced level of engine-out pollutants.

Original language	English
Pages (from-to)	11967−11973
Number of pages	7
Journal	Environmental Science and Technology
Volume	49
Issue number	19
Early online date	14 Sept 2015
DOIs	https://doi.org/10.1021/acs.est.5b02447
Publication status	Published - 6 Oct 2015

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This document is the Accepted Manuscript version of a Published Work that appeared in final form in Environ. Sci. Technol, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://dx.doi/10.1021/acs.est.5b02447 See http://pubs.acs.org/page/policy/articlesonrequest/index.html.
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novel Compact After Treatment Systems for Simultaneous Reduction of Diesel Engine NOx, PM,CO and HC Emissions
Tsolakis, A., Harrison, R. & Wyszynski, M.
Engineering & Physical Science Research Council
4/01/10 → 31/05/13
Project: Research Councils

Cite this

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title = "Role of alternative fuels on particulate matter (PM) characteristics and influence of the diesel oxidation catalyst",

abstract = "The influence of a platinum:palladium (Pt:Pd)-based diesel oxidation catalyst (DOC) on the engine-out particulate matter (PM) emissions morphology and structure from the combustion of alternative fuels (including alcohol–diesel blends and rapeseed oil methyl ester (RME) biodiesel) was studied. PM size distribution was measured using a scanning mobility particulate spectrometer (SMPS), and the PM morphology and microstructure (including size distribution, fractal geometry, and number of primary particles) was obtained using high-resolution transmission electron microscopy (TEM). It is concluded that the DOC does not modify the size or the microstructural parameters of the primary particulates that make up the soot agglomerates. The PM reduction seen in the DOC is due to the trapping effect, and oxidation of the PM{\textquoteright}s volatile components. The DOC performance in reducing gaseous (e.g., carbon monoxide (CO) and unburnt hydrocarbons (HCs)) and PM emissions at low exhaust temperatures was improved from the combustion of alternative fuels due to the reduced level of engine-out pollutants.",

author = "Mohammed Fayad and Jose Herreros and Francisco Martos and Athanasios Tsolakis",

year = "2015",

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journal = "Environmental Science and Technology",

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TY - JOUR

T1 - Role of alternative fuels on particulate matter (PM) characteristics and influence of the diesel oxidation catalyst

AU - Fayad, Mohammed

AU - Herreros, Jose

AU - Martos, Francisco

AU - Tsolakis, Athanasios

PY - 2015/10/6

Y1 - 2015/10/6

N2 - The influence of a platinum:palladium (Pt:Pd)-based diesel oxidation catalyst (DOC) on the engine-out particulate matter (PM) emissions morphology and structure from the combustion of alternative fuels (including alcohol–diesel blends and rapeseed oil methyl ester (RME) biodiesel) was studied. PM size distribution was measured using a scanning mobility particulate spectrometer (SMPS), and the PM morphology and microstructure (including size distribution, fractal geometry, and number of primary particles) was obtained using high-resolution transmission electron microscopy (TEM). It is concluded that the DOC does not modify the size or the microstructural parameters of the primary particulates that make up the soot agglomerates. The PM reduction seen in the DOC is due to the trapping effect, and oxidation of the PM’s volatile components. The DOC performance in reducing gaseous (e.g., carbon monoxide (CO) and unburnt hydrocarbons (HCs)) and PM emissions at low exhaust temperatures was improved from the combustion of alternative fuels due to the reduced level of engine-out pollutants.

AB - The influence of a platinum:palladium (Pt:Pd)-based diesel oxidation catalyst (DOC) on the engine-out particulate matter (PM) emissions morphology and structure from the combustion of alternative fuels (including alcohol–diesel blends and rapeseed oil methyl ester (RME) biodiesel) was studied. PM size distribution was measured using a scanning mobility particulate spectrometer (SMPS), and the PM morphology and microstructure (including size distribution, fractal geometry, and number of primary particles) was obtained using high-resolution transmission electron microscopy (TEM). It is concluded that the DOC does not modify the size or the microstructural parameters of the primary particulates that make up the soot agglomerates. The PM reduction seen in the DOC is due to the trapping effect, and oxidation of the PM’s volatile components. The DOC performance in reducing gaseous (e.g., carbon monoxide (CO) and unburnt hydrocarbons (HCs)) and PM emissions at low exhaust temperatures was improved from the combustion of alternative fuels due to the reduced level of engine-out pollutants.

U2 - 10.1021/acs.est.5b02447

DO - 10.1021/acs.est.5b02447

M3 - Article

SN - 0013-936X

VL - 49

SP - 11967−11973

JO - Environmental Science and Technology

JF - Environmental Science and Technology

IS - 19

ER -

Role of alternative fuels on particulate matter (PM) characteristics and influence of the diesel oxidation catalyst

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novel Compact After Treatment Systems for Simultaneous Reduction of Diesel Engine NOx, PM,CO and HC Emissions

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