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Natural Gas Engine Emission Reduction by Catalysts

Research output: Contribution to journalArticleScientificpeer-review

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Natural Gas Engine Emission Reduction by Catalysts. / Lehtoranta, Kati; Murtonen, Timo; Vesala, Hannu; Koponen, Päivi; Alanen, Jenni; Simonen, Pauli; Rönkkö, Topi; Timonen, Hilkka; Saarikoski, Sanna; Maunula, Teuvo; Kallinen, Kauko; Korhonen, Satu.

In: Emission Control Science and Technology, Vol. 3, No. 2, 06.2017, p. 142-152.

Research output: Contribution to journalArticleScientificpeer-review

Harvard

Lehtoranta, K, Murtonen, T, Vesala, H, Koponen, P, Alanen, J, Simonen, P, Rönkkö, T, Timonen, H, Saarikoski, S, Maunula, T, Kallinen, K & Korhonen, S 2017, 'Natural Gas Engine Emission Reduction by Catalysts' Emission Control Science and Technology, vol. 3, no. 2, pp. 142-152. https://doi.org/10.1007/s40825-016-0057-8

APA

Lehtoranta, K., Murtonen, T., Vesala, H., Koponen, P., Alanen, J., Simonen, P., ... Korhonen, S. (2017). Natural Gas Engine Emission Reduction by Catalysts. Emission Control Science and Technology, 3(2), 142-152. https://doi.org/10.1007/s40825-016-0057-8

Vancouver

Lehtoranta K, Murtonen T, Vesala H, Koponen P, Alanen J, Simonen P et al. Natural Gas Engine Emission Reduction by Catalysts. Emission Control Science and Technology. 2017 Jun;3(2):142-152. https://doi.org/10.1007/s40825-016-0057-8

Author

Lehtoranta, Kati ; Murtonen, Timo ; Vesala, Hannu ; Koponen, Päivi ; Alanen, Jenni ; Simonen, Pauli ; Rönkkö, Topi ; Timonen, Hilkka ; Saarikoski, Sanna ; Maunula, Teuvo ; Kallinen, Kauko ; Korhonen, Satu. / Natural Gas Engine Emission Reduction by Catalysts. In: Emission Control Science and Technology. 2017 ; Vol. 3, No. 2. pp. 142-152.

Bibtex - Download

@article{c274969d0cce4b8abead8c6fd47d5d58,
title = "Natural Gas Engine Emission Reduction by Catalysts",
abstract = "In order to meet stringent emission limits, after-treatment systems are increasingly utilized in natural gas engine applications. In this work, two catalyst systems were studied in order to clarify how the catalysts affect, e.g. hydrocarbons, NOx and particles present in natural gas engine exhaust. A passenger car engine modified to run with natural gas was used in a research facility with possibilities to modify the exhaust gas properties. High NOx reductions were observed when using selective catalytic reduction, although a clear decrease in the NOx reduction was recorded at higher temperatures. The relatively fresh methane oxidation catalyst was found to reach reductions greater than 50{\%} when the exhaust temperature and the catalyst size were sufficient. Both the studied catalyst systems were found to have a significant effect on particulate emissions. The observed particle mass reduction was found to be due to a decrease in the amount of organics passing over the catalyst. However, especially at high exhaust temperatures, high nanoparticle concentrations were observed downstream of the catalysts together with higher sulphate concentrations in particles. This study contributes to understanding emissions from future natural gas engine applications with catalysts in use.",
author = "Kati Lehtoranta and Timo Murtonen and Hannu Vesala and P{\"a}ivi Koponen and Jenni Alanen and Pauli Simonen and Topi R{\"o}nkk{\"o} and Hilkka Timonen and Sanna Saarikoski and Teuvo Maunula and Kauko Kallinen and Satu Korhonen",
year = "2017",
month = "6",
doi = "10.1007/s40825-016-0057-8",
language = "English",
volume = "3",
pages = "142--152",
journal = "Emission Control Science and Technology",
issn = "2199-3629",
publisher = "Springer International Publishing AG",
number = "2",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Natural Gas Engine Emission Reduction by Catalysts

AU - Lehtoranta, Kati

AU - Murtonen, Timo

AU - Vesala, Hannu

AU - Koponen, Päivi

AU - Alanen, Jenni

AU - Simonen, Pauli

AU - Rönkkö, Topi

AU - Timonen, Hilkka

AU - Saarikoski, Sanna

AU - Maunula, Teuvo

AU - Kallinen, Kauko

AU - Korhonen, Satu

PY - 2017/6

Y1 - 2017/6

N2 - In order to meet stringent emission limits, after-treatment systems are increasingly utilized in natural gas engine applications. In this work, two catalyst systems were studied in order to clarify how the catalysts affect, e.g. hydrocarbons, NOx and particles present in natural gas engine exhaust. A passenger car engine modified to run with natural gas was used in a research facility with possibilities to modify the exhaust gas properties. High NOx reductions were observed when using selective catalytic reduction, although a clear decrease in the NOx reduction was recorded at higher temperatures. The relatively fresh methane oxidation catalyst was found to reach reductions greater than 50% when the exhaust temperature and the catalyst size were sufficient. Both the studied catalyst systems were found to have a significant effect on particulate emissions. The observed particle mass reduction was found to be due to a decrease in the amount of organics passing over the catalyst. However, especially at high exhaust temperatures, high nanoparticle concentrations were observed downstream of the catalysts together with higher sulphate concentrations in particles. This study contributes to understanding emissions from future natural gas engine applications with catalysts in use.

AB - In order to meet stringent emission limits, after-treatment systems are increasingly utilized in natural gas engine applications. In this work, two catalyst systems were studied in order to clarify how the catalysts affect, e.g. hydrocarbons, NOx and particles present in natural gas engine exhaust. A passenger car engine modified to run with natural gas was used in a research facility with possibilities to modify the exhaust gas properties. High NOx reductions were observed when using selective catalytic reduction, although a clear decrease in the NOx reduction was recorded at higher temperatures. The relatively fresh methane oxidation catalyst was found to reach reductions greater than 50% when the exhaust temperature and the catalyst size were sufficient. Both the studied catalyst systems were found to have a significant effect on particulate emissions. The observed particle mass reduction was found to be due to a decrease in the amount of organics passing over the catalyst. However, especially at high exhaust temperatures, high nanoparticle concentrations were observed downstream of the catalysts together with higher sulphate concentrations in particles. This study contributes to understanding emissions from future natural gas engine applications with catalysts in use.

U2 - 10.1007/s40825-016-0057-8

DO - 10.1007/s40825-016-0057-8

M3 - Article

VL - 3

SP - 142

EP - 152

JO - Emission Control Science and Technology

JF - Emission Control Science and Technology

SN - 2199-3629

IS - 2

ER -