Regeneration of chlorine oxidation of hydrogen chloride is an important problem of organochlorine products production. Known catalysts for this reaction is low-acting and mostly not stable enough. The information about the application of V-catalysts for this process are practically absent. This is study of stability and catalytic activity of industrial sulfuric acid vanadium sulfate catalysts IК-1-6 in the oxidation of hydrogen chloride with molecular oxygen. It is found that activity of the catalyst reaches 660 g·kg /(Cat·h) at 400 °C, and the rate of mass loss of the catalyst (due to the formation of volatile vanadyl chloride) is 4,6 %/h on a vanadium in conditions of low conversion (less than 15%) in the external diffusion area. In conditions of high conversions (60%), vanadyl chloride, which is formed on the main layer of the catalyst, is hydrolyzed and precipitated on the subsequent layers on the conversion growth of the reaction mixture, leads to a redistribution of vanadium on the height of the catalyst layer and prevents its removal from a reactor. Periodic change of the reacting gas direction in a catalytic reactor or using of batteries of several series-connected reactors, which are periodically swapped from the input to the output stream ensures stable operation of the catalyst. The results show that industrial vanadium-sulfate catalysts for sulfur dioxide oxidation exceed in activity and stability of all the known catalysts for Deacon process (except for ruthenium), and can be used for catalytic oxidation of hydrogen chloride.

Heterogeneous catalytic oxidation of formaldehyde in the gas phase may be considered as an alternative to multistep liquid-phase synthesis of formic acid. Monolayer V-Ti oxide catalysts are active and selective in the oxidation of formaldehyde to formic acid. Detailed investigation of kinetics of formaldehyde oxidation over monolayer V-Ti catalyst was done. The consecutive parallel reaction scheme of side products formation was established. CO2 forms during the oxidation of formaldehyde on the parallel path and overoxidation of formic acid on the consecutive path; CO forms from formic acid on the consecutive path. It was shown that oxygen and water accelerate the formic acid formation and water retards the CO formation. Based on experimental data, kinetic model of formaldehyde oxidation was developed. Developed kinetic was used for the mathematical simulation of the formaldehyde oxidation process and determination of dynamic and constructional reactor parameters. Formic acid production by gas phase oxidation of formaldehyde is unique and does not have any analogue. As opposed to conventional technologies, it is energy saving, environmentally friendly and technologically simple. A pilot plant using this technology is under construction.

Natural zeolites (clinoptilolite) of Shankanayskoe field in Almaty region are used to create catalysts for the synthesis of long chain α-olefins for paraffins cracking. Modification was made by mineral and organic heteropolyacids for an increasing catalytic activity. The olefins single yield reaches 36,6 % in a flow system at atmospheric pressure, 500–525 °С on the modified zeolites. The specific surface of the zeolite increases from 22 to 257 m2/g in all cases of heteropolyacids modification. The growth of catalytic activity caused by the formation of stable nanostructures in size from 1 to 4 nm, what leads to formation of more stronger Bronsted acid sites. The catalyst is stable at the reaction – regeneration.

There is studying of copper-containing zeolite catalyst, to develop a catalyst that does not contain precious metals, processes for obtaining high-octane motor fuel components. During the conversion of a model hydrocarbon (n-hexane) the activity of catalysts, prepared on the basis of zeolites brands CVM, CVK III-895, CVK III-889, ZSM-5 with different copper content, is tested. There is possibility of isomerization and aromatization of n-hexane, leading to the formation of high hydrocarbons in non-standard n-alkanes conversion conditions: without feeding hydrogen gas into the reaction medium, at atmospheric pressure on copper- containing high-silicon zeolites, while the industry process involve the platinum catalysts and high hydrogen pressure. Using the recommended conditions for hydrocarbon conversion should lead to lower cost of final product.

There is the way of steam and carbon dioxide catalytic conversion of hydrocarbons in the heated tubes with vapor/gas ratio close to stoichiometric, which reduces energy consumption and the consumption of oxidants (H2O and/or CO2), extend the life of the catalyst. The aim is achieved using an inert ZrO2packing, called inhibitor, first loaded in the tube during the gas stream and then successively with the catalyst. In a layer of inert inhibitor gas mixture is heated to a temperature close to the temperature of the pipe wall, and then fed to the catalyst, providing an additional warm to layer for the endothermic catalytic conversion, thereby reducing the carbonization of the catalyst. Number of pairs of layers is set taking into account the consumption of processed feed and pipes size of industrial tube furnace. The developed method of conversion has been tested on laboratory and pilot plant, next in industrial tube furnace of «Angarsknefteorgsintez», Novocherkassk plant of synthetic products and Oskol elektrometallurgical plant.

A mathematical model of the gasoline catalytic reforming in the reactor with continuous catalyst regeneration is offered. The model considers the movement of the catalyst and changes in its activity on the bed height, and the dependence of catalyst activity on the multiplicity of circulation. The kinetic parameters of Pt–Sn-catalyst for the working conditions of the process were determined solving the inverse kinetic problem. Component composition of the reformate, calculated by the model coincides with the experimental data within experimental accuracy of chromatographic analysis. The proposed kinetic model is invariant with the composition of feed and allows for predictive calculations.

There is result presentation of the first time to conduct systematic studies of the effect of conditions of oxidative treatment promising for oxidative treatment of industrial waste carbon material series Sibunit on the chemical composition of its surface and catalytic properties in reactions of deep oxidation of organic toxicants in aqueous solutions. In this first article, we consider the modification of surface properties and texture «Sibunit-4» with using different methods of oxidative treatment and using as oxidants nitric acid, sodium hypochlorite, hydrogen peroxide and oxygen. Chemical state of the oxidized Sibunit and its texture is investigated by complex of physical and chemical methods (XPS, acid-base titration with bases of varying strength, by pH measuring of the suspension and the point of zero charge, low-temperature adsorption of N2). It is shown that, depending on the method of oxidative treatment Sibunit we can get the samples, which differ not only concentration but also the nature of oxygen-containing groups on the surface.

The influence of the inlet temperature, volatile organic compounds (VOC) concentration and gas hourly space velocity upon the VOC (ethanol/ ethyl acetate) catalytic oxidation over Pd/γ-Al2O3 catalyst on foam supports was studied. One of the objectives was to determine the activity and stability of Pd/γ-Al2O3-catalysts on ceramic and metal block supports with cellular structure in the catalytic neutralization of VOC vapors (ethanol, ethyl acetate) in laboratory conditions and selection the most stable catalyst for producing the enlarged party, the second is setting of a pilot plant and testing an enlarged party of cellular block catalyst for vapors VOCs neutralization in the production of flexographic. The high (>99 %) conversion was found to be at volume velocity less than ~104 h–1 for VOC concentration of 0,5 g/m3 and volume velocity up to ~5·105 h–1 for VOC concentration of 5,0 g/m3 and. The stability of the ceramic and metallic foam supported catalysts was studied. Dramatic deactivation of the catalyst on the metallic support after long term tests in the reaction media resulting from the formation of the nickel acetate and nickel oxide was found. Tests of a pilot setup with the foam supported catalyst in the flexography industry vent exhaust neutralization demonstrated the catalyst effectiveness.

There is continued work on the selection of preparation conditions for technology developing of the dehydrogenation catalyst thermostable support production. The effect of phase composition on the stability, the change of granulometric composition, structure, texture and physical-mechanical properties during heat treatment up to 1100 °C of microspherical alumina supports obtained by the technology of consecutive thermal and hydrothermal treatment of gibbsite in comparison with samples of thermochemical activation of gibbsite products is studied. The linear dimensions of the support granules are reduced as a result of shrinkage in heating, which is determined by the phase composition and character of the packing of the constituent crystallites of boehmite. There are three temperature ranges: in I region (<600 °C) the intensive shrinkage is the mechanism of diffusion slip of crystallites with preservation of the strength of granules, in the II region (600–900 °C) Polymorphic transitions in oxides of aluminum and simultaneous sintering of the mechanism of surface diffusion does not affect the size and strength characteristics of the granules, in region III (> 900– 1000 °C) shrinkage is the mechanism of coalescence sintering. Alumina supports with the minimum χ-Al2O3 are recommended to use for industrial microspherical paraffin dehydrogenation catalysts, they provide thermal stability at 550–900 °C.

The influence of structural and electronic characteristics of nonpromoted and cobalt promoted Pd-catalysts in their adsorption and catalytic properties. Shown that the conversion vinylacetylene depends on palladium dispersity for both catalysts, synthesized with acetate and acetylacetonate complexes. Higher conversion vinylacetylene is on catalysts of palladium acetylacetonate, as dispersity of palladium higher compared with samples from the solutions of the acetate complexes. It was established that the selectivity of vinylacetylene transformation to 1,3-butadiene on catalysts from acetate and acetylacetonate palladium is determined by the electronic state of 3d-orbitals of Pd surface atoms. Catalysts from palladium acetate have a higher electron density at the 3d-orbitals in comparison with the acetylacetonate samples, which determines their higher selectivity of the vinylacetylene conversion to 1,3-butadiene. The cobalt introduction in Pd/δ-Al2O3-catalysts, synthesized using acetylacetonate complex, leads to formation of bimetallic Pd-Co-particles with Pd atoms with higher electron density compared to the Pd atom in nonpromoted Pd/δ-Al2O3-catalysts, that is probably due to donation of electron density from the promoter atoms and leads to a decrease in the adsorption capacity of bimetallic particles by 1,3-butadiene and hydrogen. Consequence is an increase of vinylacetylene to 1,3-butadiene conversion selectivity.