Effect of aftertreatment on ship particulate and gaseous components at ship exhaust

Kimmo Teinilä, Päivi Aakko-Saksa, Jukka-Pekka Jalkanen, Panu Karjalainen, Matthew Bloss, Jaakko Laakia, Sanna Saarikoski, Hannu Vesala, Rasmus Pettinen, Päivi Koponen, Niina Kuittinen, Pekka Piimäkorpi, Hilkka Timonen

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Abstract

Particle chemical composition, physical properties and concentrations of selected gaseous compounds were measured on-board a large RoRo passenger ship equipped with an open loop scrubber and diesel oxidation catalyst. Measurements were made using on-line measuring devices with high time resolution together with filter based samplings. The aim of the measurements were to gather information on the performance of exhaust aftertreatment. Measurements showed that scrubber reduce effectively the SO2 concentration from the exhaust gas and also concentration of NOx was reduced. CO and hydrocarbon concentrations were reduced by diesel oxidant catalyst located before scrubber. Particulate matter (PM) consisted mainly sulphate, organics and black carbon (BC). During open sea cruising (65% engine load) the major particulate chemical compound measured after scrubber was sulphate (66%). However its concentration was very low (~40 mg/Sm3 dry). Markedly lower sulphate concentrations were measured at 17% engine load which is connected to lower engine temperature and reduced conversion of SO2 to SO3. About one third of measured PM was organic matter and only about 4% (<5 mg/Sm3 dry) of PM was black carbon (BC). For lower engine loads (17%) larger concentrations of black carbon were measured (~10 mg/Sm3 dry) which can be explained by the incomplete combustion when lower engine load is used. Diesel oxidant catalyst seemed to reduce also concentrations of measured metals and polycyclic aromatic hydrocarbons (PAH) in particulate phase.
Original languageEnglish
PublisherVTT Technical Research Centre of Finland
Number of pages28
Publication statusPublished - 1 Mar 2018
MoE publication typeD4 Published development or research report or study

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engine
black carbon
diesel
particulate matter
catalyst
sulfate
oxidant
passenger ship
chemical compound
PAH
physical property
combustion
chemical composition
organic carbon
ship
effect
hydrocarbon
filter
oxidation
organic matter

Cite this

Teinilä, K., Aakko-Saksa, P., Jalkanen, J-P., Karjalainen, P., Bloss, M., Laakia, J., ... Timonen, H. (2018). Effect of aftertreatment on ship particulate and gaseous components at ship exhaust. VTT Technical Research Centre of Finland.
Teinilä, Kimmo ; Aakko-Saksa, Päivi ; Jalkanen, Jukka-Pekka ; Karjalainen, Panu ; Bloss, Matthew ; Laakia, Jaakko ; Saarikoski, Sanna ; Vesala, Hannu ; Pettinen, Rasmus ; Koponen, Päivi ; Kuittinen, Niina ; Piimäkorpi, Pekka ; Timonen, Hilkka. / Effect of aftertreatment on ship particulate and gaseous components at ship exhaust. VTT Technical Research Centre of Finland, 2018. 28 p.
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abstract = "Particle chemical composition, physical properties and concentrations of selected gaseous compounds were measured on-board a large RoRo passenger ship equipped with an open loop scrubber and diesel oxidation catalyst. Measurements were made using on-line measuring devices with high time resolution together with filter based samplings. The aim of the measurements were to gather information on the performance of exhaust aftertreatment. Measurements showed that scrubber reduce effectively the SO2 concentration from the exhaust gas and also concentration of NOx was reduced. CO and hydrocarbon concentrations were reduced by diesel oxidant catalyst located before scrubber. Particulate matter (PM) consisted mainly sulphate, organics and black carbon (BC). During open sea cruising (65{\%} engine load) the major particulate chemical compound measured after scrubber was sulphate (66{\%}). However its concentration was very low (~40 mg/Sm3 dry). Markedly lower sulphate concentrations were measured at 17{\%} engine load which is connected to lower engine temperature and reduced conversion of SO2 to SO3. About one third of measured PM was organic matter and only about 4{\%} (<5 mg/Sm3 dry) of PM was black carbon (BC). For lower engine loads (17{\%}) larger concentrations of black carbon were measured (~10 mg/Sm3 dry) which can be explained by the incomplete combustion when lower engine load is used. Diesel oxidant catalyst seemed to reduce also concentrations of measured metals and polycyclic aromatic hydrocarbons (PAH) in particulate phase.",
author = "Kimmo Teinil{\"a} and P{\"a}ivi Aakko-Saksa and Jukka-Pekka Jalkanen and Panu Karjalainen and Matthew Bloss and Jaakko Laakia and Sanna Saarikoski and Hannu Vesala and Rasmus Pettinen and P{\"a}ivi Koponen and Niina Kuittinen and Pekka Piim{\"a}korpi and Hilkka Timonen",
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Teinilä, K, Aakko-Saksa, P, Jalkanen, J-P, Karjalainen, P, Bloss, M, Laakia, J, Saarikoski, S, Vesala, H, Pettinen, R, Koponen, P, Kuittinen, N, Piimäkorpi, P & Timonen, H 2018, Effect of aftertreatment on ship particulate and gaseous components at ship exhaust. VTT Technical Research Centre of Finland.

Effect of aftertreatment on ship particulate and gaseous components at ship exhaust. / Teinilä, Kimmo; Aakko-Saksa, Päivi; Jalkanen, Jukka-Pekka; Karjalainen, Panu; Bloss, Matthew; Laakia, Jaakko; Saarikoski, Sanna; Vesala, Hannu; Pettinen, Rasmus; Koponen, Päivi; Kuittinen, Niina; Piimäkorpi, Pekka; Timonen, Hilkka.

VTT Technical Research Centre of Finland, 2018. 28 p.

Research output: Book/ReportReportProfessional

TY - BOOK

T1 - Effect of aftertreatment on ship particulate and gaseous components at ship exhaust

AU - Teinilä, Kimmo

AU - Aakko-Saksa, Päivi

AU - Jalkanen, Jukka-Pekka

AU - Karjalainen, Panu

AU - Bloss, Matthew

AU - Laakia, Jaakko

AU - Saarikoski, Sanna

AU - Vesala, Hannu

AU - Pettinen, Rasmus

AU - Koponen, Päivi

AU - Kuittinen, Niina

AU - Piimäkorpi, Pekka

AU - Timonen, Hilkka

PY - 2018/3/1

Y1 - 2018/3/1

N2 - Particle chemical composition, physical properties and concentrations of selected gaseous compounds were measured on-board a large RoRo passenger ship equipped with an open loop scrubber and diesel oxidation catalyst. Measurements were made using on-line measuring devices with high time resolution together with filter based samplings. The aim of the measurements were to gather information on the performance of exhaust aftertreatment. Measurements showed that scrubber reduce effectively the SO2 concentration from the exhaust gas and also concentration of NOx was reduced. CO and hydrocarbon concentrations were reduced by diesel oxidant catalyst located before scrubber. Particulate matter (PM) consisted mainly sulphate, organics and black carbon (BC). During open sea cruising (65% engine load) the major particulate chemical compound measured after scrubber was sulphate (66%). However its concentration was very low (~40 mg/Sm3 dry). Markedly lower sulphate concentrations were measured at 17% engine load which is connected to lower engine temperature and reduced conversion of SO2 to SO3. About one third of measured PM was organic matter and only about 4% (<5 mg/Sm3 dry) of PM was black carbon (BC). For lower engine loads (17%) larger concentrations of black carbon were measured (~10 mg/Sm3 dry) which can be explained by the incomplete combustion when lower engine load is used. Diesel oxidant catalyst seemed to reduce also concentrations of measured metals and polycyclic aromatic hydrocarbons (PAH) in particulate phase.

AB - Particle chemical composition, physical properties and concentrations of selected gaseous compounds were measured on-board a large RoRo passenger ship equipped with an open loop scrubber and diesel oxidation catalyst. Measurements were made using on-line measuring devices with high time resolution together with filter based samplings. The aim of the measurements were to gather information on the performance of exhaust aftertreatment. Measurements showed that scrubber reduce effectively the SO2 concentration from the exhaust gas and also concentration of NOx was reduced. CO and hydrocarbon concentrations were reduced by diesel oxidant catalyst located before scrubber. Particulate matter (PM) consisted mainly sulphate, organics and black carbon (BC). During open sea cruising (65% engine load) the major particulate chemical compound measured after scrubber was sulphate (66%). However its concentration was very low (~40 mg/Sm3 dry). Markedly lower sulphate concentrations were measured at 17% engine load which is connected to lower engine temperature and reduced conversion of SO2 to SO3. About one third of measured PM was organic matter and only about 4% (<5 mg/Sm3 dry) of PM was black carbon (BC). For lower engine loads (17%) larger concentrations of black carbon were measured (~10 mg/Sm3 dry) which can be explained by the incomplete combustion when lower engine load is used. Diesel oxidant catalyst seemed to reduce also concentrations of measured metals and polycyclic aromatic hydrocarbons (PAH) in particulate phase.

M3 - Report

BT - Effect of aftertreatment on ship particulate and gaseous components at ship exhaust

PB - VTT Technical Research Centre of Finland

ER -

Teinilä K, Aakko-Saksa P, Jalkanen J-P, Karjalainen P, Bloss M, Laakia J et al. Effect of aftertreatment on ship particulate and gaseous components at ship exhaust. VTT Technical Research Centre of Finland, 2018. 28 p.