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Information × Registration Number 0216U002041, 0114U000942 , R & D reports Title Development of scientific principles of creating a new generation of catalysts for neutralization of NOx gas emissions in stationary and mobile sources popup.stage_title Head Soloviev Sergij O., Кандидат біологічних наук Registration Date 20-01-2016 Organization L.V.Pysarzhevsky Institute of Physical Chemistry of National Academy of Science of Ukraine popup.description2 The influence of dopants MxOy (M: V, Zn, Mo, W, Co, Cu, Mn, Sn, Ce, La) in the composition of structured Ag/Al2O3/cordierite catalysts on the process of selective catalytic reduction of NO by hydrocarbons C3, C8 and alcohols C2 , C4 was studied. The introduction of zinc oxide in the silver-alumina catalyst leads to increased dispersion of silver (shown by TEM) and increased conversion of nitric oxide to N2, which may be caused by the formation of zinc-containing centers which provide adsorption of reductant and its subsequent partial oxidation to intermediate of SCR process. It is shown that introduction of small amounts of palladium (0.1%) of the In-containing and binary In, Co-containing catalysts based on Al2O3, ZrO2 reduces temperature of nitrogen oxides transformation on 120-180 °C, when CO is used as the reductant. The highest activity, resistance to water vapour and sulfur compounds is found for the catalyst 0,1% Pd/2,5% In2O3/5% Co3O4/ZrO2. It was established that the activity of indium and tin-containing zeolite catalysts in the reduction of nitrogen oxides by hydrocarbons, including SCR - process, depends on the presence of surface Bronsted acid sites. 5%In2O3/H-BEA and AlSn-H-BEA show higher activity (conversion of nitrogen oxides (I, II) is 73-87% in the temperature range of 270-500 °C ) due to greater availability of Bronsted acid sites. Product Description popup.authors Бойчук Тетяна Михайлівна Кирієнко Павло Іванович Попович Наталія Олексіївна popup.nrat_date 2020-04-02 Close