Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Ari Väliheikki"'
Autor:
Mika Huuhtanen, Tomi Kanerva, Riitta L. Keiski, Marja Kärkkäinen, Minnamari Vippola, Kimmo Lahtonen, Ari Väliheikki, Kauko Kallinen, Mari Honkanen
Publikováno v:
Journal of Catalysis. 397:183-191
Simultaneous poisoning of sulfur + phosphorus on a platinum-based diesel oxidation catalyst was studied to gain a deeper understanding on the catalyst deactivation. Compared to a single poisoning (sulfur or phosphorus), the simultaneous poisoning had
Autor:
Kauko Kallinen, Minnamari Vippola, Jouko Lahtinen, Riitta L. Keiski, Mari Honkanen, Mika Huuhtanen, Ari Väliheikki, Tanja Kolli, Olli Heikkinen, Marja Kärkkäinen
Publikováno v:
Applied Catalysis B: Environmental. 218:409-419
The impact of sulphur, phosphorus and water and their co-exposure on a monolith-type Pt/SiO 2 -ZrO 2 diesel oxidation catalyst was investigated. The accelerated laboratory-scale sulphur treatments for Pt/SiO 2 -ZrO 2 were done with and without water
Autor:
Mika Huuhtanen, Riitta L. Keiski, Minnamari Vippola, Mari Honkanen, Marja Kärkkäinen, Tanja Kolli, Ari Väliheikki, Olli Heikkinen, Kauko Kallinen, Jouko Lahtinen
Publikováno v:
Topics in Catalysis. 60:307-311
The effect of sulphur and phosphorus on a Pt/SiO2–ZrO2 catalyst was studied. The laboratory accelerated sulphur (SW) or phosphorus (PW), and their co-exposure (PSW) treatments were done in gas phase for 5 h at 400 °C. The fresh and treated catalys
Autor:
Kauko Kallinen, Minnamari Vippola, Riitta L. Keiski, Mika Huuhtanen, Mari Honkanen, Jouko Lahtinen, Ari Väliheikki, Tanja Kolli, Olli Heikkinen, Marja Kärkkäinen
Publikováno v:
Topics in Catalysis. 59:1044-1048
Phosphorus is found to have a deactivating effect on the catalytic activity of the studied natural-gas-oxidation catalyst. Accelerated laboratory-scale phosphorus treatment was done to the PtPd/Al2O3 natural gas oxidation catalyst. The effect of phos
Publikováno v:
Topics in Catalysis. 58:1002-1011
The impact of sulphur and hydrothermal aging on W–CeZr and CeZr catalysts was investigated. Sulphur treatments for W–CeZr and CeZr were done in the absence and presence of water (S- and S + H2O-treatments, respectively) for 5 h at 400 °C. Simila
Autor:
Sampo Virtanen, Mari Pietikäinen, Ari Väliheikki, Mika Huuhtanen, Kati Oravisjärvi, Toomas Karhu, Riitta L. Keiski, Tanja Kolli, Seppo Niemi
Publikováno v:
Renewable Energy. 77:377-385
Diesel engines are challenged to reduce their emissions. Nitrogen oxides (NOx), hydrocarbons, particulate matter and carbon dioxide are most important regulated diesel emissions. The legislation is driving for the use of renewable fuels in vehicles b
Publikováno v:
Topics in Catalysis. 56:602-610
The effect of potassium, sodium and water on Fe–ZSM-5, W–ZSM-5 and ZSM-5 catalysts was investigated. Catalysts were characterized by several techniques and tested in the NH3-SCR reaction. The impact of water-, K- and Na-treatments on the activity
Autor:
Marja Kärkkäinen, Ari Väliheikki, Mari Hetti Honkanen, Olli Heikkinen, Tanja Kolli, Mika Huuhtanen, Kauko Kallinen, Jouko Lahtinen, Minnamari Vippola, Riitta Keiski
Publikováno v:
Tampere University
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::0988774196331c892cc552d14adf33fd
https://researchportal.tuni.fi/en/publications/910a482f-eb93-4996-98e3-fcb91fb5897b
https://researchportal.tuni.fi/en/publications/910a482f-eb93-4996-98e3-fcb91fb5897b
Autor:
Mari Hetti Honkanen, Marja Kärkkäinen, Hua Jiang, Mika Huuhtanen, Thomas Hansen, Lunjie Zeng, Ari Väliheikki, Kauko Kallinen, Eva Olsson, Jakob Wagner, Riitta Keiski, Minnamari Vippola
Publikováno v:
Tampere University
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::eb09454333833931dcf300146b2b9b6d
https://researchportal.tuni.fi/en/publications/d89bf39a-5a38-4742-aa5b-82074a506de9
https://researchportal.tuni.fi/en/publications/d89bf39a-5a38-4742-aa5b-82074a506de9