Search Results - "Rahkamaa, K."

Catalyst preparation through ion-exchange of zeolite Cu-, Ni-, Pd-, CuNi- and CuPd-ZSM-5 by Öhman, L.O., Ganemi, B., Björnbom, E., Rahkamaa, K., Keiski, R.L., Paul, J.

“…Ion-exchanged zeolite ZSM-5 is the best known catalyst for direct NO x decomposition and a viable candidate for NO x reduction with methane. The preparation is…”
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Modelling of H 2/D 2 exchange over Pd by Backman, H., Rahkamaa-Tolonen, K., Wärnå, J., Salmi, T., Murzin, D. Yu

“…The isotopic exchange between hydrogen and deuterium was studied over a Pd/alumina catalyst. A model was proposed, including the adsorption and dissociation of…”
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Adsorption of Propene in the Presence and Absence of Oxygen or Nitric Oxide on Pt-Loaded ZSM-5, Beta, Y, and Ferrierite Zeolites by Huuhtanen, M., Määttä, T., Rahkamaa-Tolonen, K., Maunula, T., Keiski, R.L.

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Investigation of NO Reduction by H 2 on Pd Monolith with Transient and Isotopic Exchange Techniques : II. H 2/D 2 Exchange in the Reduction of NO by Rahkamaa-Tolonen, K., Salmi, T., Murzin, D.Yu, Dillon, L.Barreto, Lassi, U., Keiski, R.L.

“…The kinetics and mechanism of catalytic reduction of nitrogen oxide (NO) by hydrogen on an alumina-based palladium monolith were studied under atmospheric…”
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Deactivation Correlations over Pd/Rh Monoliths: The Role of Gas Phase Composition by Lassi, U., Hietikko, M., Rahkamaa-Tolonen, K., Kallinen, K., Savimäki, A., Härkönen, M., Laitinen, R., Keiski, R.L.

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The effect of NO2 on the activity of fresh and aged zeolite catalysts in the NH3-SCR reaction by RAHKAMAA-TOLONEN, Katariina, MAUNULA, Teuvo, LOMMA, Mari, HUUHTANEN, Mika, KEISKI, Riitta L

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Investigation of the catalytic decomposition of NO and N2O on supported Rh with transient techniques by Rahkamaa, Katariina, Salmi, Tapio

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Transient reduction kinetics of NO over Pd-based metallic monoliths by Rahkamaa, Katariina, Salmi, Tapio, Keiski, Riitta, Wärnå, Johan, Zhou, Yi

“…The kinetics and the mechanism of the catalytic reduction of nitrogen oxides (NO x ) by hydrogen were studied over a modified alumina-based palladium monolith…”
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FT-IR-cPAS--new photoacoustic measurement technique for analysis of hot gases: a case study on VOCs by Hirschmann, Christian Bernd, Koivikko, Niina Susanna, Raittila, Jussi, Tenhunen, Jussi, Ojala, Satu, Rahkamaa-Tolonen, Katariina, Marbach, Ralf, Hirschmann, Sarah, Keiski, Riitta Liisa

“…This article describes a new photoacoustic FT-IR system capable of operating at elevated temperatures. The key hardware component is an optical-readout…”
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The effect of barium on the catalytic behaviour of fresh and aged Pd-Ba-OSC/Al2O3 catalysts by KOLLI, Tanja, LASSI, Ulla, RAHKAMAA-TOLONEN, Katariina, KINNUNEN, Toni-J. J, KEISKI, Riitta L

“…In this study, fresh and laboratory-aged (rapid ageing hot in laboratory (RAHLAB)) Pd-Ba-OSC/Al2O3 and Pd-OSC/Al2O3-La2O3 catalysts were investigated. The…”
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Characterization of phosphorus poisoning on diesel exhaust gas catalyst components containing oxide and Pt by Kröger, V., Kanerva, T., Lassi, U., Rahkamaa-Tolonen, K., Vippola, M., Keiski, R. L.

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Structural changes in air aged and poisoned diesel catalysts by Kanerva, T., Kröger, V., Rahkamaa-Tolonen, K., Vippola, M., Lepistö, T., Keiski, R. L.

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Comparison of catalytic activity and selectivity of Pd/(OSC + Al2O3) and (Pd + OSC)/Al2O3 catalysts by KOLLI, Tanja, RAHKAMAA-TOLONEN, Katariina, LASSI, Ulla, SAVIMÄKI, Auli, KEISKI, Riitta L

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Thermodynamic equilibrium calculations of sulfur poisoning in Ce–O–S and La–O–S systems by Karjalainen, Heidi, Lassi, Ulla, Rahkamaa-Tolonen, Katariina, Kröger, Virpi, Keiski, Riitta L.

“…Sulfur poisoning is still a problem in many application areas of exhaust gas catalysts despite the fact that the sulfur levels, e.g. in gasoline are being…”
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Phosphorus poisoning of ZSM-5 and Pt/ZSM-5 zeolite catalysts in diesel exhaust gas conditions by Kröger, V., Kanerva, T., Lassi, U., Rahkamaa-Tolonen, K., Lepistö, T., Keiski, R. L.

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Investigation of the catalytic decomposition of NO and N2O on supported Rh with transient techniques by RAHKAMAA, K, SALMI, T

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Pt-loaded zeolites for reducing exhaust gas emissions at low temperatures and in lean conditions by Huuhtanen, Mika, Rahkamaa-Tolonen, Katariina, Maunula, Teuvo, Keiski, Riitta L.

“…In this study, pure and platinum-loaded zeolites, ZSM-5, Beta, zeolite Y and Ferrierite, were examined for the reduction of NO with propene in lean conditions…”
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Influence of BaO on Pd/Al2O3-based catalysts in C2H4 and CO oxidation as well as in NO reduction by KOLLI, Tanja, RAHKAMAA-TOLONEN, Katariina, LASSI, Ulla, SAVIMÄKI, Auli, KEISKI, Riitta L

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Influence of OSC Material on the Behaviour of Metallic Pd Catalysts in C 2 H 4 and CO Oxidation as Well as in NO Reduction by Kolli, T., Rahkamaa-Tolonen, K., Lassi, U., Savimäki, A., Keiski, R.L.

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Investigation of NO reduction by H2 on Pd monolith with transient and isotopic exchange techniques: II. H2/D2 Exchange in the reduction of NO by RAHKAMAA-TOLONEN, K, SALMI, T, MURZIN, D. Yu, BARRETO DILLON, L, LASSI, U, KEISKI, R. L

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