M
Manfred Koebel
Researcher at Paul Scherrer Institute
Publications - 25
Citations - 3584
Manfred Koebel is an academic researcher from Paul Scherrer Institute. The author has contributed to research in topics: Selective catalytic reduction & Catalysis. The author has an hindex of 19, co-authored 25 publications receiving 3341 citations.
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Urea-SCR: a promising technique to reduce NOx emissions from automotive diesel engines
TL;DR: In this article, the authors discuss the fundamental problems and challenges if urea-SCR is extended to mobile applications, including the control strategy for urea dosing, the high freezing point of urea, and the long term stability of the catalyst.
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Reaction Pathways in the Selective Catalytic Reduction Process with NO and NO2 at Low Temperatures
TL;DR: The low-temperature behavior of the selective catalytic reduction (SCR) process with feed gases containing both NO and NO2 was investigated in this article, where the two main reactions are 4NH3 + 2NO + 2 NO2 → 4N2 + 6H2O and 2NH3+ 2NO2 → NH4NO3 + N2 + H2O.
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Selective catalytic reduction of NO and NO2 at low temperatures
TL;DR: In this paper, the authors investigated the effect of ammonium nitrate on the SCR reaction in the presence of NO and showed that ammonium Nitrate can lead to the formation of NO 2.
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Catalytic oxidation of nitrogen monoxide over Pt/SiO2
TL;DR: In this article, the catalytic oxidation of NO was studied on a catalyst consisting of platinum supported on SiO2 and the kinetic behavior over Pt/SiO2 with a platinum loading of 2.5% was investigated in a feed containing 5% water and various concentrations of oxygen, nitrogen monoxide and nitrogen dioxide.
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Thermal and Hydrolytic Decomposition of Urea for Automotive Selective Catalytic Reduction Systems: Thermochemical and Practical Aspects
Manfred Koebel,Ernst Olav Strutz +1 more
TL;DR: In this paper, an energy analysis of the thermal decomposition of solid urea and urea solutions is presented, and the results are discussed in view of urea selective catalytic reduction (SCR) for automotive DeNOx systems.