In this work, massive and supported on α- and γ-Al₂O₃ copper catalysts were obtained. Copper-ammonia-carbonate solution was used as a copper precursor. Textural properties of the obtained catalytic systems (specific surface area, pore volume, size of coherent scattering regions) were studied. Optimum temperatures of catalyst reduction in a hydrogen flow were experimentally determined. It was shown that γ-Al₂O₃ inhibits the process of thermal decomposition of basic copper carbonate. Catalyst activity in the process of liquid-phase reduction of D-glucose was determined as the average reaction rate, since the reaction orders were close to zero. The optimal amount of supported copper was determined: 5.5-5.8% by weight. The obtained catalytic systems are not inferior in their operational properties to supported catalysts based on other transition metals, allowing the process to be carried out at room temperature and atmospheric pressure of hydrogen in the system.

There are the results of the study of samples of effective sorption materials based on domestic natural raw materials – ferromanganese sediments. The use of these sorption materials has significant prospects for solving the urgent problem of environmental protection – purification of gas streams from toxic sulfur compounds. The influence of the calcination temperature of sorbents on their physico-chemical and sorption characteristics is studied. It is shown that the calcination temperature of the sorbent significantly affects its sorption capacity for hydrogen sulfide, the sorbent calcined at 300 °C has optimal sorption characteristics. The results of the SEM with EDX mapping of the elements in the spent samples made it possible to propose a route for the sorption of hydrogen sulfide on synthesized sorbents, depending on the temperature.

Ni-Cu/Al₂O₃ catalysts used for the synthesis of nanofibrous carbon and hydrogen were prepared via solution combustion synthesis method with various fuels: sucrose, urea and oxalic acid. The effect of different organic fuel contents on the composition and textural characteristics of the resulting catalysts was investigated. Catalyst samples were tested in a quartz flow reactor at 550°C in methane at atmospheric pressure. The effect of fuel content on the catalyst performance in the synthesis of nanofibrous carbon and hydrogen was studied. The resulting catalyst was a powder with a specific surface area of 60–128 m²/g.

The article presents the results of experimental and theoretical studies of steam reforming of synthetic diesel fraction (SDF) on the industrial methanation catalyst of the NIAP-07-01 brand in order to produce hydrogen for fuel cells. SDF (boiling point 180-290 °C), obtained by Fischer-Tropsch synthesis on the zeolite-containing catalyst Со/SiO₂/ZSM-5/Al₂O₃, consists of hydrocarbons C₁₁-C₁₈ (88%) and a small amount of the C₅-C₁₀ fraction (10.8%). It was found that at a ratio of H2O/C = 3.03 in the temperature range of 450-650 °C in the equilibrium state, the degree of SDF conversion is 100 %, on a nickel catalyst, complete SDF conversion is achieved at a temperature above 600 °C. The main conversion products are hydrogen, methane and carbon dioxide, with the hydrogen concentration being significantly higher and methane concentration being lower than the calculated equilibrium values. The NIAP-07-01 catalyst exhibits high activity and selectivity for hydrogen. The maximum hydrogen yield is 279 g H₂/(kg SDF) at 650 °C, the H₂ concentration in the converted gas is 66.5%. Calculations have shown that to provide a 10 kW power plant based on a low-temperature fuel cell with a proton exchange membrane based on a Pt/C catalyst with hydrogen, the SDF consumption will be 2.8 kg/h.

Synthesizing an active, selective, and stable catalytic coating is a challenging task for the semihydrogenation of alkenols in a flow microreactor, which offers a potentially effective strategy for alkenol production in fine organic synthesis. In this study, PdMe/TiO2 (Me = Zn, Ag) catalytic films were prepared using a simple and efficient template sol-gel method and used in the semihydrogenation of 2-methyl-3-butyn-2-ol. The prepared bimetallic PdMe/TiO2 (Me = Zn, Ag) catalytic films demonstrated high catalytic selectivity due to the formation of PdZn and PdAg alloy nanoparticles (NPs). The surface area of the PdAg active site changes under the reaction conditions. The PdZn film demonstrates better catalytic efficiency. Doping the support with zinc increases the selectivity and stability of the films. Analysis of X-ray photoelectron spectra showed that the zinc-doped PdZn/Ti0.8Zn0.2O1.8 film has a higher concentration of PdZn active sites and better oxidation stability than PdZn/TiO2. The PdAg/TiO2 and PdZn/Ti0.8Zn0.2O1.8 catalytic films demonstrated high stability during long-term testing.

This review systematizes data on the key regularities of liquid-phase hydrogenation of carbocyclic alkenes and dienes of the norbornene series in the presence of palladium catalysts. The conditions of hydrogenation of norbornene derivatives that ensure the preservation of the norbornane framework and the most probable mechanisms of its occurrence are considered. Approaches to assessing the reactivity of multiple bonds of different nature and the values of activation parameters are presented.

Catalytic dimerization of ethylene is the basis of modern technologies for obtaining high-purity butene-1, a valuable intermediate product of petrochemical synthesis, which is in demand primarily in the production of polymers for various purposes. The paper summarizes current information on the areas of use of butene-1 in the chemical industry and technologies for its catalytic synthesis from ethylene, and identifies trends and approaches in the development of catalysts for selective dimerization of ethylene.

The work is devoted to the study of the process of thermocatalytic processing of biomass in a fluidized bed reactor in order to obtain useful heat. Samples of miscanthus, pine nut shells, and coffee waste were selected as the initial biomass. The biomass, crushed to a fraction less than 0.5 mm (coffee waste was not crushed, the particle size was initially 0.2-0.4 mm), was fed into a reactor with a fluidized bed of a catalyst at processing temperatures of 650, 700 and 750 °C, respectively. The essence of these experiments was to obtain useful heat by combustion the supplied biomass and using it, for example, to maintain an autothermal mode, as well as to study the ash residues obtained during combustion and analyze the gases emitted during combustion, followed by the creation of a process model in Aspen Plus software. The data obtained during the simulation are consistent with experimental data, and the proposed scheme can be used as one of the approaches to assessing the feasibility of implementing the process of catalytic combustion of biomass in a fluidized bed in an autothermal mode.