Reduction of natural gas engine emissions using catalysts

Kati Lehtoranta, Hannu Vesala, Timo Murtonen, Jenni Alanen, Mia Isotalo, Sampsa Martikainen, Topi Rönkkö, Sanna Saarikoski

    Research output: Contribution to conferenceConference articleScientific

    Abstract

    In order to diminish the environmental and health effects and to comply with tightening emission limits, exhaust after-treatment systems are going to be increasingly utilized also in the natural gas engine applications. In this work, we study both oxidation catalyst and se-lective catalytic reduction systems to solve how the catalysts influence on e.g. hydrocar-bons, NOx and particles existing in natural gas engine exhaust. A passenger car engine modified to run with natural gas was used in a laboratory research facility equipped with a possibility to modify the exhaust gas properties. In addition, the role of lubricating oil on the emission formation was also studied. When using selective catalytic reduction, high NOx reductions were observed. To oxidize methane a highly efficient oxidation catalyst was needed while other hydrocarbons were more easily oxidized. Catalyst systems were found to have significant effects on particulate emission also. Especially at high exhaust tem-peratures, high nanoparticle concentrations were observed downstream of the catalysts. Changing the lubricating oil was also found to have an effect on the particle emission.
    Original languageEnglish
    Publication statusPublished - 2019
    MoE publication typeNot Eligible
    Event12th Dessau Gas Engine Conference - Dessau-Rosslau, Germany
    Duration: 11 Apr 201912 Apr 2019
    https://www.wtz.de/gasmotorenkonferenz/en/

    Conference

    Conference12th Dessau Gas Engine Conference
    CountryGermany
    CityDessau-Rosslau
    Period11/04/1912/04/19
    Internet address

    Fingerprint

    Gas engines
    Natural gas
    Catalysts
    Lubricating oils
    Oxidation
    Particulate emissions
    Exhaust systems (engine)
    Selective catalytic reduction
    Passenger cars
    Research laboratories
    Exhaust gases
    Methane
    Hydrocarbons
    Health
    Nanoparticles
    Engines

    Cite this

    Lehtoranta, K., Vesala, H., Murtonen, T., Alanen, J., Isotalo, M., Martikainen, S., ... Saarikoski, S. (2019). Reduction of natural gas engine emissions using catalysts. Paper presented at 12th Dessau Gas Engine Conference , Dessau-Rosslau, Germany.
    Lehtoranta, Kati ; Vesala, Hannu ; Murtonen, Timo ; Alanen, Jenni ; Isotalo, Mia ; Martikainen, Sampsa ; Rönkkö, Topi ; Saarikoski, Sanna. / Reduction of natural gas engine emissions using catalysts. Paper presented at 12th Dessau Gas Engine Conference , Dessau-Rosslau, Germany.
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    title = "Reduction of natural gas engine emissions using catalysts",
    abstract = "In order to diminish the environmental and health effects and to comply with tightening emission limits, exhaust after-treatment systems are going to be increasingly utilized also in the natural gas engine applications. In this work, we study both oxidation catalyst and se-lective catalytic reduction systems to solve how the catalysts influence on e.g. hydrocar-bons, NOx and particles existing in natural gas engine exhaust. A passenger car engine modified to run with natural gas was used in a laboratory research facility equipped with a possibility to modify the exhaust gas properties. In addition, the role of lubricating oil on the emission formation was also studied. When using selective catalytic reduction, high NOx reductions were observed. To oxidize methane a highly efficient oxidation catalyst was needed while other hydrocarbons were more easily oxidized. Catalyst systems were found to have significant effects on particulate emission also. Especially at high exhaust tem-peratures, high nanoparticle concentrations were observed downstream of the catalysts. Changing the lubricating oil was also found to have an effect on the particle emission.",
    author = "Kati Lehtoranta and Hannu Vesala and Timo Murtonen and Jenni Alanen and Mia Isotalo and Sampsa Martikainen and Topi R{\"o}nkk{\"o} and Sanna Saarikoski",
    year = "2019",
    language = "English",
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    url = "https://www.wtz.de/gasmotorenkonferenz/en/",

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    Lehtoranta, K, Vesala, H, Murtonen, T, Alanen, J, Isotalo, M, Martikainen, S, Rönkkö, T & Saarikoski, S 2019, 'Reduction of natural gas engine emissions using catalysts', Paper presented at 12th Dessau Gas Engine Conference , Dessau-Rosslau, Germany, 11/04/19 - 12/04/19.

    Reduction of natural gas engine emissions using catalysts. / Lehtoranta, Kati; Vesala, Hannu; Murtonen, Timo; Alanen, Jenni; Isotalo, Mia; Martikainen, Sampsa ; Rönkkö, Topi; Saarikoski, Sanna.

    2019. Paper presented at 12th Dessau Gas Engine Conference , Dessau-Rosslau, Germany.

    Research output: Contribution to conferenceConference articleScientific

    TY - CONF

    T1 - Reduction of natural gas engine emissions using catalysts

    AU - Lehtoranta, Kati

    AU - Vesala, Hannu

    AU - Murtonen, Timo

    AU - Alanen, Jenni

    AU - Isotalo, Mia

    AU - Martikainen, Sampsa

    AU - Rönkkö, Topi

    AU - Saarikoski, Sanna

    PY - 2019

    Y1 - 2019

    N2 - In order to diminish the environmental and health effects and to comply with tightening emission limits, exhaust after-treatment systems are going to be increasingly utilized also in the natural gas engine applications. In this work, we study both oxidation catalyst and se-lective catalytic reduction systems to solve how the catalysts influence on e.g. hydrocar-bons, NOx and particles existing in natural gas engine exhaust. A passenger car engine modified to run with natural gas was used in a laboratory research facility equipped with a possibility to modify the exhaust gas properties. In addition, the role of lubricating oil on the emission formation was also studied. When using selective catalytic reduction, high NOx reductions were observed. To oxidize methane a highly efficient oxidation catalyst was needed while other hydrocarbons were more easily oxidized. Catalyst systems were found to have significant effects on particulate emission also. Especially at high exhaust tem-peratures, high nanoparticle concentrations were observed downstream of the catalysts. Changing the lubricating oil was also found to have an effect on the particle emission.

    AB - In order to diminish the environmental and health effects and to comply with tightening emission limits, exhaust after-treatment systems are going to be increasingly utilized also in the natural gas engine applications. In this work, we study both oxidation catalyst and se-lective catalytic reduction systems to solve how the catalysts influence on e.g. hydrocar-bons, NOx and particles existing in natural gas engine exhaust. A passenger car engine modified to run with natural gas was used in a laboratory research facility equipped with a possibility to modify the exhaust gas properties. In addition, the role of lubricating oil on the emission formation was also studied. When using selective catalytic reduction, high NOx reductions were observed. To oxidize methane a highly efficient oxidation catalyst was needed while other hydrocarbons were more easily oxidized. Catalyst systems were found to have significant effects on particulate emission also. Especially at high exhaust tem-peratures, high nanoparticle concentrations were observed downstream of the catalysts. Changing the lubricating oil was also found to have an effect on the particle emission.

    M3 - Conference article

    ER -

    Lehtoranta K, Vesala H, Murtonen T, Alanen J, Isotalo M, Martikainen S et al. Reduction of natural gas engine emissions using catalysts. 2019. Paper presented at 12th Dessau Gas Engine Conference , Dessau-Rosslau, Germany.