OIL, PETROLEUM & METHODS OF THEIR EVALUATION Prospects for the Joint Production of Bitumen and Petroleum Coke at Russian Refinery up to 2030 doi:10.24412/0233-5727-2025-3-3-7 Article Page 1Piskunov I.V., 1Kapustin V.M.,, 2Saitov R.I., 2Konkov D.A. 1Gubkin Russian State University of Oil and Gas, Moscow; 2OMT-Consulting Company, Moscow Abstract: The results of a detailed analysis of the production of heavy petroleum products at Russian refineries over several years are presented. Based on mathematical models developed for each refinery, a forecast of the production of these products up to 2030 was obtained and the main problematic issues were identified. Taking into account the planned launch of new coking units, an almost doubling of petroleum coke production is expected, while in the optimistic price scenario, bitumen production will stabilize at a level of up to 8 million tons per year. Measures are proposed to reduce the risks of the road industry by expanding raw materials for obtaining bitumen. Keywords: petroleum coke, bitumen, coking unit, tar, oil residues. Phenolic Extraction Purification of Deasphalted Oil from Sulfur and Nitrogen-Containing Compounds doi:10.24412/0233-5727-2025-3-8-13 Article Page 1Kameshkov A.V., 1Gaile A.A., 2Ladinenko A.Y. 1Surgutneftegas – LLC KINEF, Russia; 2St. Petersburg State Institute of Technology, Russia Abstract: The article presents the results of single-stage extraction purification of tar deasphalted oil from KINEF LLC at phenol to deasphalted oil mass ratios of 1:1, 2:1 and 3:1 at a temperature of 50°C, as well as using a phenol-hexane fraction extraction system. The degree of extraction of nitrogen and sulfur compounds was calculated and was lower than that obtained by extractive purification of light and heavy vacuum gas oil and, in particular, delayed coker gas oils with N-methylpyrrolidone and N, N-dimethylformamide, but higher than that obtained by extractive purification of fuel oil with N-methylpyrrolidone. Explanations of the obtained results are presented, related to the difference in specific interactions of proton-donor phenol and aprotic solvents with extracted components, as well as with different fractional composition and group composition of raw materials in terms of boiling range. Keywords: tar, deasphalting, extraction, phenol, desulfurization, denitrogenation. MATHEMATICAL MODELING OF TECHNOLOGICAL PROCESSES Approximating Ability of Multiparametric Functions for Mathematical Analysis of Distillation Curves doi:10.24412/0233-5727-2025-3-14-17 Article Page Ignatchik Ya.B., Zuikov A.V. Gubkin Russian State University of Oil and Gas (NIU), Moscow Аннотация: The description of the properties of petroleum fractions is an important aspect in forecasting and determining their properties. The existing limitations of standard methods for determining the fractional composition due to the wide boiling range of fractions lead to limitations in the study of individual sections of the characteristic curve — the boiling point versus the boiling volume. Performing extrapolation to predict properties requires the use of specialized multiparameter functions for approximation. The paper presents the results of using multiparametric functions for the mathematical analysis of distillation curves. It is established that the generalized logistic curve function, which has a large number of free parameters, is more preferable than the Riazi function. Keywords: distillation curve, distillation curve, function, optimization, mathematical analysis. Optimization of the Existing Scheme of the Unit for Capturing Products of Heating, Steaming and Cooling of Coke Oven Chambers at the Delayed Coking Unit of JSK NK Refinery doi: 10.24412/0233-5727-2025-3-18-21 Article Page Medvedeva V.A., Batyukov S.S., Moiseev A.V. Samara State Technical University Abstract:The potential for enhancing the efficiency of the coke oven chamber product collection system of heating, steaming, and cooling, is demonstrated. This enhancement involves the reduction of technological losses within the unit and the enterprise as a whole, concurrently achieving an augmentation in the yield of light oil products at the delayed coking unit. Keywords: oil refining, delayed coking, process losses, technological scheme, heat and mass exchange apparatuses, modeling, UniSim Design, coke chambers. Assessment of the Effect of the Operating Mode of Circulating Irrigation on the Clarity of Fractionation of Products and the Energy Efficiency of the Distillation Column doi:10.24412/0233-5727-2025-3-22-25 Article Page Kassem N., Zuikov A.V. Gubkin Russian State University of Oil and Gas, Moscow Abstract: A significant number of projects initiated in the last 20 years in the world are related to the need to reduce the energy intensity of the processes of primary distillation of oil into fractions. The relevance of this area is directly related to the need to reduce financial costs for the production of petroleum products, as well as to reduce the carbon footprint of oil refineries. The article presents the results of an analysis and assessment of the impact of the proposed mode of operation of circulating irrigation (with increased flow) on the energy efficiency of the distillation column. It has been proven that increasing the flow rate of circulating irrigation increases the temperature pressure (LMTD) and the amount of heat transferred in the system of regenerative heat exchangers. Increasing the degree of heat recovery from outgoing product streams and circulation streams reduces the thermal load on the heating furnace and, consequently, improves the energy efficiency of the AVT installation as a whole. Keywords: energy efficiency of primary processing, distillation column, circulating irrigation, flow rate of circulating irrigation. CHEMMOTOLOGOS Changes in the physico-chemical and operational properties of transmission oil during bench tests doi:10.24412/0233-5727-2025-3-26-29 Article Page Seleznev M.V., Evseev A.A., Kotova A.A., Balak G.M., Potemkina E.V. Federal Autonomous Enterprise «The 25-th State Research Institute of Chemmotology, Ministry of Defence of the Russian Federation» Abstract: The timing of the transmission oil change is determined based on the study of changes in their physico-chemical and operational properties during operation. Determining the optimal frequency of changing lubricating oils in transmission units (nodes) of machinery is a rather timeconsuming operation of great practical importance. To assess changes in the quality of working transmission oils, generalizing coefficients are used, which are calculated based on changes in their properties. The paper presents experimental dependences of changes in the main quality indicators (kinematic viscosity, acid number, oil resistance to sealing rubber, mass fraction of active additive elements (S, P) and wear (Fe, Cr, Cu, Pb) of transmission oil on the operating time of the hydraulic drive. Keywords: transmission units, rejection rates, hydraulic drive, generalizing

FROM THE EDITOR-IN-CHIEF V.M. Kapustin: Introductory Remarks OIL, PETROLEUM PRODUCTS & METHODS OF THEIR EVALUATION Evaluation of the Possibility of Using Propylene Glycol Mono-tert-Butyl Ether in the Composition of Commercial Motor Gasoline doi: 10.24412/0233-5727-2025-1-4-8 Article Page 1Tyurina E.V., 1Stolonogova T.I., 1Chernysheva E.A. 1Gubkin Russian State University of Oil and Gas (National Research University), Moscow Abstract. The article presents the results of a study of the effect of an octane booster, mono-tert-butyl ether of propylene glycol, on the qualitative characteristics of motor gasoline in order to establish their quality compliance with the requirements of the main Russian regulatory documents. The additive was involved in gasoline in the amount of 1, 5 and 9% vol. The physico-chemical and operational properties of the mixtures were analyzed using standard methods and instruments. It has been established that the model mixtures of motor gasoline meet the requirements of CU TR 013/2011 and GOST 32513-2013 in all respects. Key words: motor gasoline, oxygenates, octane boosters, mono-tert-butyl ether of propylene glycol, GOST 32513-2013, CU TR 013/2011. Phase Stability of Gasoline Containing Butyl Alcohol Hydrogenate doi:10.24412/0233-5727-2025-1-8-10 Article Page 1Amirkhanov M.K., 1Akhmetov A.F., 1Amirkhanov K.Sh., 1Belousova O.Yu., 1Iapaev R.Sh. 1Ufa State Petroleum Technological University Abstract. The phase stability of motor gasolines containing hydrogenated product of butyl alcohols production was studied by measuring the cloud point. Isomerate, alkylate, catalytic cracking gasoline, catalytic reforming gasoline, straight-run gasoline and commercial motor gasoline of the AI-92-K5 brand were used as the main gasoline component in the studies. Hydrogenated product of butyl alcohols production manufactured at Gazprom Neftekhim Salavat LLC was used as the oxygen-containing component. It was found that the cloud point (stability) of the mixture of gasoline with hydrogenated product of butyl alcohols production (in an amount from 5 to 60% by volume) is in the range from minus 27 to -60°C. Key words: phase stability of gasoline mixture, gasoline cloud point, hydrogenated product of butyl alcohols production. Analysis of Methods for Assessing Aggregative and Sedimentation Stability of Diesel Fuels with Additives doi:10.24412/0233-5727-2025-1-11-20 Article Page 1Mukhina D.Yu., 1Lobashova M.M., 1Savelenko V.D., 1Ershov M.A., 1,2Zvereva A.E., 2Rakova A.I., 1Tikhomirova E.O., 1Makhova U.A., 1Kapustin V.M. 1Gubkin Russian State University of Oil and Gas, Moscow; 2Additive Production Development Center LTD, Moscow Abstract. This paper analyzes existing methods for assessing the aggregative and sedimentation stability of diesel fuels with additives involved to improve low-temperature properties by the example of pour point depressants. A comparative analysis of methods is presented from the point of view of their ability to reflect the assessment of low-temperature properties and are predicted the stability of additive-modified fuels at low temperatures. Key words: diesel fuel, low-temperature properties, sedimentation stability, aggregative stability. Ways to Improve the Low-Temperature Performance of Road Bitumen in the Light of New Volumetric Mixture Design doi:10.24412/0233-5727-2025-1-21-28 Article Page 1 Parshukova O.R., 1 Pozdnyakov V.V., 1 Egorov A.G., 1 Tyukilina P.M., 2 Tyschenko V.A. 1JSC «Middle Volga Oil Refining Research Institute», Novokuybyshevsk; 2Samara State Technical University Abstract. This paper presents the results of a study on oxidized and compounded road bitumen obtained from heavy tar residues. The results show that meeting the increased requirements of GOST R 58400.1 for the low-temperature properties of bitumen is possible by incorporating selective-treatment extracts into their composition. Technological solutions have been developed to ensure the production of PG 58−34 asphalt binder, which is most popular in the Central and Volga Federal Districts. Key words: road oil bitumen, performance-graded asphalt binder, creep stiffness, resistance to rutting, selective treatment extract. PROCESSES & EQUIPMENT Modernization of Vacuum Distillation Process for Hydrocarbon Residues and Heavy Fractions doi:10.24412/0233-5727-2025-1-29-33 Aricle Page 1Zuikov A.V., 1Stolonogova T.I., 1Krasnoshtanova S.S., 1Gershun A.V. 1Gubkin Russian State University of Oil and Gas (National Research University), Moscow Abstract.This paper presents an analytical study of the drawbacks of traditional vacuum distillation schemes for oil residues, which lead to intense cracking and reduced yields of target fractions. A novel, patented scheme is proposed for process optimization, allowing for both reduced energy consumption and increased yields of certain target products, while minimizing negative environmental impacts. Laboratory research results confirm the effectiveness of the proposed distillation scheme. Key words: vacuum distillation, oil residues, cracking, optimization, energy efficiency, product yield, environment. Expansion of Raw Material Resources for the Production of Transformer Oil doi:10.24412/0233-5727-2025-1-34-39 Article Page 1 Kovalenko M.V., 1Kuzora I.E., 1Glebkin N.A., 1Stadnik A.V., 1Obukhova M.V., 1Gorevaya M.A. 1JSC «Angarsk Petrochemical Company» Abstract. Research and pilot runs have been carried out to expand the raw-material base for producing high-quality transformer hydrocracking oil (GK). It is proposed to incorporate into the feed a weighted distillate product—the upper circulating irrigation of the vacuum column of the GK-3 unit. Samples from the pilot-industrial batches of transformer hydrocracking oil GK meet the requirements of the relevant regulatory and technical documentation. Expanding the raw-material base enables optimal loading of the transformer-oil production stages and increases the output of high-margin products. Key words: base stock of hydrocracking oils, transformer oil, alternative source of raw materials, hydrocracking, upper circulation irrigation, GK-3 unit, catalytic dewaxing.