Chemical and physical properties of ultrafine diesel exhaust particles sampled downstream of a catalytic trap

Melissa Grose; Hiromu Sakurai; Jake Savstrom; Mark R. Stolzenburg; Winthrop F. Watts; Christopher G. Morgan; Ian P. Murray; Martyn V. Twigg; David B. Kittelson; Peter H. Mcmurry

doi:10.1021/es052267+

Chemical and physical properties of ultrafine diesel exhaust particles sampled downstream of a catalytic trap

Melissa Grose, Hiromu Sakurai, Jake Savstrom, Mark R. Stolzenburg, Winthrop F. Watts, Christopher G. Morgan, Ian P. Murray, Martyn V. Twigg, David B. Kittelson, Peter H. Mcmurry

Mechanical Engineering

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

67 Scopus citations

Abstract

The chemical and physical properties of exhaust particles produced by a Caterpillar 3176 C-12 heavy duty diesel engine equipped with a catalytic trap (CRT) are reported. The engine was operated at 600 Nm and 1500 rpm, using fuels containing 15 and 49 ppm sulfur. A two-stage dilution tunnel designed to simulate the reactions that occur when hot combustion products mix with cooler atmospheric air was used. Particle size distributions were measured using a scanning mobility particle sizer (SMPS) and nano-scanning mobility particle sizer (nano SMPS); a nano-micro-orifice uniform deposit impactor (nano MOUDI) collected size-resolved samples for gravimetric and chemical analysis. A nanometer tandem differential mobility analyzer (nano TDMA) was used to measure the volatility and hygroscopicity of 4-15 nm particles. These measurements confirm that the particles consisted primarily of sulfates.

Original language	English (US)
Pages (from-to)	5502-5507
Number of pages	6
Journal	Environmental Science and Technology
Volume	40
Issue number	17
DOIs	https://doi.org/10.1021/es052267+
State	Published - Sep 1 2006

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10.1021/es052267+

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@article{82343d56cb1b41e18f358d24068fcf93,

title = "Chemical and physical properties of ultrafine diesel exhaust particles sampled downstream of a catalytic trap",

abstract = "The chemical and physical properties of exhaust particles produced by a Caterpillar 3176 C-12 heavy duty diesel engine equipped with a catalytic trap (CRT) are reported. The engine was operated at 600 Nm and 1500 rpm, using fuels containing 15 and 49 ppm sulfur. A two-stage dilution tunnel designed to simulate the reactions that occur when hot combustion products mix with cooler atmospheric air was used. Particle size distributions were measured using a scanning mobility particle sizer (SMPS) and nano-scanning mobility particle sizer (nano SMPS); a nano-micro-orifice uniform deposit impactor (nano MOUDI) collected size-resolved samples for gravimetric and chemical analysis. A nanometer tandem differential mobility analyzer (nano TDMA) was used to measure the volatility and hygroscopicity of 4-15 nm particles. These measurements confirm that the particles consisted primarily of sulfates.",

author = "Melissa Grose and Hiromu Sakurai and Jake Savstrom and Stolzenburg, {Mark R.} and Watts, {Winthrop F.} and Morgan, {Christopher G.} and Murray, {Ian P.} and Twigg, {Martyn V.} and Kittelson, {David B.} and Mcmurry, {Peter H.}",

year = "2006",

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language = "English (US)",

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T1 - Chemical and physical properties of ultrafine diesel exhaust particles sampled downstream of a catalytic trap

AU - Grose, Melissa

AU - Sakurai, Hiromu

AU - Savstrom, Jake

AU - Stolzenburg, Mark R.

AU - Watts, Winthrop F.

AU - Morgan, Christopher G.

AU - Murray, Ian P.

AU - Twigg, Martyn V.

AU - Kittelson, David B.

AU - Mcmurry, Peter H.

PY - 2006/9/1

Y1 - 2006/9/1

N2 - The chemical and physical properties of exhaust particles produced by a Caterpillar 3176 C-12 heavy duty diesel engine equipped with a catalytic trap (CRT) are reported. The engine was operated at 600 Nm and 1500 rpm, using fuels containing 15 and 49 ppm sulfur. A two-stage dilution tunnel designed to simulate the reactions that occur when hot combustion products mix with cooler atmospheric air was used. Particle size distributions were measured using a scanning mobility particle sizer (SMPS) and nano-scanning mobility particle sizer (nano SMPS); a nano-micro-orifice uniform deposit impactor (nano MOUDI) collected size-resolved samples for gravimetric and chemical analysis. A nanometer tandem differential mobility analyzer (nano TDMA) was used to measure the volatility and hygroscopicity of 4-15 nm particles. These measurements confirm that the particles consisted primarily of sulfates.

AB - The chemical and physical properties of exhaust particles produced by a Caterpillar 3176 C-12 heavy duty diesel engine equipped with a catalytic trap (CRT) are reported. The engine was operated at 600 Nm and 1500 rpm, using fuels containing 15 and 49 ppm sulfur. A two-stage dilution tunnel designed to simulate the reactions that occur when hot combustion products mix with cooler atmospheric air was used. Particle size distributions were measured using a scanning mobility particle sizer (SMPS) and nano-scanning mobility particle sizer (nano SMPS); a nano-micro-orifice uniform deposit impactor (nano MOUDI) collected size-resolved samples for gravimetric and chemical analysis. A nanometer tandem differential mobility analyzer (nano TDMA) was used to measure the volatility and hygroscopicity of 4-15 nm particles. These measurements confirm that the particles consisted primarily of sulfates.

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SP - 5502

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JO - Environmental Science and Technology

JF - Environmental Science and Technology

IS - 17

ER -

Chemical and physical properties of ultrafine diesel exhaust particles sampled downstream of a catalytic trap

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