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Information × Registration Number 0223U003330, 0120U102382 , R & D reports Title Development of heat-resistant nanocomposite catalysts based on transition metal oxides (Mn, Co, Zr, Ce) of deep oxidation of C1-C4 hydrocarbons for catalytic heat generators popup.stage_title Head Soloviov Serhii О., Доктор хімічних наукStryzhak Petro Ye., Доктор хімічних наук Registration Date 20-04-2023 Organization L. V. Pisarzhevskii Institute Of Physical Chemistry of The National Academy of Sciences of Ukraine popup.description2  The effect of the nature and content of the transition metal in the composition of MxOy/cordierite catalysts (M: Co, Ni, Mn, Zr, Ce, La), including those promoted with Pd and Pt additives, on their activity and selectivity in the deep oxidation reactions of C1-C4 hydrocarbons was determined. Nickel-, cobalt- and manganese-containing catalysts for deep oxidation of methane and propane-butane mixture were developed. The optimal modes of their operation, under which 95-99% conversion of natural gas is achieved, have been determined. It is shown that in the presence of the developed catalysts, hydrocarbon fuel combustion processes are carried out without the formation of incomplete oxidation products (CO, organic compounds), including at oxidant concentrations lower than stoichiometric. It was established that the developed catalysts do not lose their activity during long-term tests and high-temperature loads up to 800°C. A temporary technological regulation was drawn up for the production of an experimental batch of a catalyst for the deep oxidation of C1-C4 alkanes, and a patent was obtained for the method of preparing a catalyst of 5%NiO-1%ZrO2-0,1%Pd/cordierite for the deep oxidation of hydrocarbons, which provides 95-99% methane conversion at the temperature of 400 oC. It was established that when scaling up the results of laboratory studies in a pilot plant, the implementation of the process of deep oxidation of C1-C4 hydrocarbons requires higher temperatures, in particular 580-600°C. In this temperature range, the 5%Mn2O3-4%CeO2-1%ZrO2-0,1% Pd/cordierite catalyst exhibits the greatest stability and long-term action. On the other hand, the activity of the 9%NiO-1%ZrO2-0,1%Pd/cordierite catalyst sharply decreases, which is due to the course of the pyrolysis side reaction with the carbonization of the catalyst surface. Product Description popup.authors Kapran Andrii Yu. Kosmambetova Gulnara R. Kurylets Yaroslava P. Soloviov Serhii O. Strizhak Petro Ye. Trypolskyii Andrii I. popup.nrat_date 2023-04-20 Close