The influence of temperature and ageing of initial aluminophosphate gels on their chemical and phase composition was studied. The hydrated oxide (boehmite) was used as the source of aluminum to prepare gels containing ammonium phosphate, undissolved pseudoboehmite and amorphous aluminophosphate in different proportions. The gel with predominant amorphous aluminophosphate was shown to provide selective crystallization of high phase purity AlPO₄-11 with the crystallinity degree close to 100 %. The developed method for preparation of these disperse molecular aluminophosphate sieves AlPO₄-11 is a step to crystallization of silicoaluminophosphates SAPO-11 that are promising Russian catalysts for industrial processes of hydroisomerization of n-paraffins used for manufacturing of Arctic diesel fuel, III group oils and isomerization of butenes.

The influence of the flow rate on parameters of bifunctional catalysts with different dehydrating components in the synthesis of methanol/dimethyl ether (DME) from synthesis gas (19.1 vol.% CO, 5.9 vol.% CO₂, 5.5 vol.% N₂, rest H₂) at 260 °C and 3 MPa was studied. The commercial catalyst Megamax 507 was used as the methanol agent and active γ-alumina as dehydrating agent, quartz glass, which is inert to methanol dehydration, being used for comparison. At flow rate below 20,000 L·(kg_cat·h)^–1, the conversion of CO and oxygenate capacity (calculated as C1) was higher over alumina-containing samples than over quartz glass. This observation was accounted for by a decrease in the rate of the reverse reaction of methanol with water at the partial conversion of methanol to DME to lead eventually to an increase in the methanol yield. The benefit of the one-stage synthesis against two-stage synthesis of oxygenates depended on the load: as the load increased, the difference in the capacity went through maximum.

Methods for synthesis of dichloro-[2,2]-paracyclophane (dichloroPCP) are discussed. DichloroPCP is a valuable monomer to prepare polymer coats for electronics. This monomer is not produced in Russia. Analysis of available synthetic techniques leads to conclude that the Hofmann method for cleavage of quaternary ammonium salts is the most appropriate for the industrial production. Application of catalytic technologies – alkali catalysis and catalysis by Lewis acids – is the promising way for practical implementation of this four-stage process.

In this work, the mesoporous material Al-B-SBA-15 has been obtained by direct synthesis method with Si : B : Al ratio of 10 : 0.5 : 0.5. Wetness impregnation (WI) method was used to load platinum on Al-B-SBA-15. The prepared support and catalyst were characterized by nitrogen adsorption-desorption measurement (BET), XRD, TEM, and TPD-NH3 to investigate the influence of aluminium and boron on characteristics of the catalyst. The activity of the bifunctional catalyst was tested for hydrogenation of tetralin at 180–220 °C, hydrogen pressure of 1.5–2.5 MPa for 3 h.

The process of ammonia oxyethylation was studied in a microchannel reactor at wide ranges of temperature (70–180 °C) and contact time (0.47–3.3 min). Monoethanolamine (MEA), diethanolamine (DEA), and the target triethanolamine (TEA) were the main products of the reaction between ethylene oxide (EO) and ammonia. The EO conversion was shown to increase with lengthening contact time (τ), it being 90 % at τ = 3.3 min. The highest selectivity to MEA and DEA was observed at 70 °C and τ = 3.3 min. A high selectivity to TEA (84 %) was reached at short τ (0.47 min) and maximal temperature (180 °C). The yield of TEA increased as temperature was elevated and contact time lengthened to reach 62 % at τ = 3.3 min and 155–180 °C. Mathematical modeling of the process allowed kinetic constants of individual stages to be calculated. The difference between the calculated and literature kinetic parameters could be accounted for by the specific features of the microchannel reactor providing, unlike traditional reactors for synthesis of triethanolamine, high heat and mass transfer.

The studies demonstrated the possibility of effective catalytic synthesis of aromatic hydrocarbons over a zinc oxide modified zeolite catalyst during several reaction-regeneration cycles. The service cycle was shown to be no less than 130–150 hours – a good parameter for the high temperature process. Dependencies of the conversion of fatty C3–C4 constituents of APG on the reaction temperature and time were determined.

The process of upgrading of pyrolysis bio-oil via hydrodeoxygenation was studied at 0.6 MPa hydrogen pressure and 150–350 °C in the presence of the NiCu-SiO₂ catalyst prepared by the sol-gel method. The catalyst resistance to agglomeration of the active component and to the carbon deposition on its surface was examined. The oxygen content in the liquid products of lignocellulose pyrolysis was shown to decrease from 37 to 15 wt.% as the process temperature rose. A CHNS-O analyzer was used to establish that the coke quantity on the catalyst surface at 350 °C decreased to one fourth of that at 150 °C. XPS studies revealed that the elevation of the process temperature led to progressive agglomeration of the particles followed by a decrease in their size at high temperature due to dissolution of the active components of the catalyst in the reaction medium.

Main characteristics of currently used industrial catalysts and an innovative catalyst MAK-K for dehydrogenation of cyclohexanol were compared. Main attention was paid to comparison of the activity and selectivity of MAK-K and the best catalyst H3-11 (BASF) at 220–270 °C and feed flow rate of 0.6–1.3 h^–1. Similar behaviors were characteristic of both catalysts, the use of MAK-K being preferable at lower temperatures and higher feed flow rates. The MAK-K catalyst manufactured by LLC «NIAP-KATALIZATOR» was tested. The catalyst (1.4 m³) was loaded to a reactor for dehydrogenation of cyclohexanol at Shchekinoazot Co. and employed for more than 2000 h to demonstrate its high activity and selectivity. The catalyst was competitive against all the samples under study.

The computer simulation was based on an adequate kinetic model with allowance for deactivation of the Pt-Sn catalyst. Weight proportions of the target reforming products (benzene, toluene, xylenes) were calculated by varying sequentially the process parameters: temperature between 480 and 550 °C, pressure between 6 and 10 atm, volume feed flow rate between 0.9 and 1.5 h^–1, hydrogen-rich gas circulation ratio between 400 and 550 m³/m³. It was established that the inlet temperature elevation, pressure reduction and a decrease in the hydrogen-rich gas circulation ratio led to an increase in the total yield of arenes but not to change in the proportions of different arenes. These results agreed with the theoretical assumptions and analytic data on the real platformate. Reduction of the volume feed flow rate at otherwise identical conditions resulted in improvement of the expected yield of arenes and in a change in proportions of arenes in the platformate: the proportion of xylenes decreased but the proportion of benzene and toluene increased.

The process of dehydration of ethanol to ethylene at varied dimensions of an alumina ring catalyst was studied using the mathematical 2D model of the tube reactor to determine the equivalent size Req of the catalyst grain that, in turn, determine the efficiency η of the internal surface of the catalyst. The method was suggested for assigning grains with different dimensions to four structure groups depending on the procedure for preparation of samples with identical Req. The system of criteria for identification of catalyst grains with the best characteristics for the given conditions was developed based on the suggested approach. Grain dimensions and the other parameters providing the highest ethylene yield at the lowest pressure drop and shortest contact time were determined.