Description
The most important results of fundamental and applied research
Oxidizing dehydrogenation of propane to propylene
A new method for the oxidative conversion of light alkanes to olefins on a catalyst operating in a cyclic mode is proposed. The use of chemically bound oxygen made it possible to suppress undesirable side reactions of further oxidation of the target product - olefin, which led to a significant increase in the selectivity of the process (from 45-50% to 75%). A catalyst of composition Pt / ZnO / Al2O3 has been developed, providing a performance of up to 300 g of propylene / g cat ∙ h.
Selective hydrogenation of acetylene and its derivatives
For the first time, palladium-palladium-zinc carboxylate complexes were used as starting compounds for the preparation of palladium-containing bimetallic catalysts of the Pd-Zn / Al2O3 composition. It was shown that using such compounds, the formation of deposited bimetallic nanoparticles occurs under milder conditions, it is possible to avoid segregation of components and violation of the ratio of metals, determined by the stoichiometry of the initial heteronuclear carboxylate complexes. The selectivity of the obtained Pd-Zn catalysts is 10–20% higher than that of traditional catalytic systems.
Nanoscale effects in complete oxidation reactions
A comprehensive method has been developed to increase the efficiency of supported platinum catalysts for the complete oxidation of volatile organic compounds by optimizing the size of platinum nanoparticles, as well as using effects associated with the carrier-metal interaction processes. The proposed method allows to reduce the content of the noble metal by 5-7 times while maintaining the performance characteristics of the catalyst.
"Bifunctional" zeolite catalysts for selective catalytic reduction of NOx (SCR NOx) at low temperatures
[Mn / Ce0.67Zr0.33O2 + FeBETA] is a new class of composite catalysts for the removal of nitrogen oxides from motor vehicle exhaust and off-gas from nitrogen-containing compounds. On Mn / Ce0.67Zr0.33O2 oxidation of NO to NO2 proceeds, and on FeBETA - SCR NOx by ammonia. Catalysts provide effective removal of nitrogen oxides at temperatures of 150-350 ºС, have high hydrothermal stability.
Selective reduction of NOx by hydrocarbons on silver nanoparticle catalysts
For the first time, a systematic study of the effect of various parameters (Ag concentration, H2 concentration, reaction temperature) on Ag / Al2O3 activity in the reaction of selective catalytic reduction of NOx by n-hexane under conditions of "soft" H2-promotion (i.e. with small amounts of H2) was carried out. It was shown that even with the use of ultra-small amounts of H2 (1000 ppm), the reaction rate increases and the NOx reduction temperature decreases by about 100 ° C, which leads to effective removal of nitrogen oxides in a wide temperature range: 175 - 400 ° C.
Selective hydrogenation of benzene in catalytic reforming products
A zeolitic catalyst modified with Pd and Rh nanoparticles has been developed for the process of selective hydrogenation of benzene in catalytic reforming products, allowing to remove up to 85-90% of benzene with slight hydrogenation of substituted aromatics (<12%), which meets the requirements of Euro-4 standard.
The main results of the scientific activity of laboratory No. 35 for 2009-2013 are set out in 73 publications:
1 review
24 articles (10 of them were published in foreign journals, 14 - in Russian journals),
48 theses (of which 42 theses of speeches were made at international conferences, 6 - at Russian conferences).
