Kerosene Fraction Research Articles

Hydroconversion of waste polyethylene plastics under mild conditions using mechanically mixed bifunctional catalysts: Impact of metal-acid balance and proximity

The disposal of non-biodegradable waste polyolefin plastics poses a serious environmental threat, highlighting the need for cleaner and more efficient thermochemical recycling technologies. This study introduces a scalable mechanical method to synthesize a metal-acid bifunctional catalyst. The mechanical ball milling process not only exposes more acidic sites but also enhances metal-acid proximity without blocking the pores. By varying the metal-acid balance (MAB) through different mixing ratios, we achieved higher yields and selectivity for soluble products at the optimal MAB level. Under mild conditions (250°C) for 8 h, polyethylene (PE) is efficiently converted into liquid phase iso-paraffins with an isomer selectivity of up to 56 % in the diesel and aviation kerosene fractions (C11-C18). This research underscores the importance of the accessibility of acidic sites to long-chain macromolecules, metal-acid site distance, and their balance in the hydrocracking of PE. It provides valuable theoretical insights and catalytic strategies for converting waste PE plastics into high-value fuel fractions.

Predicting the entire pyrolysis process of representative charring material infiltrated with kerosene using an improved artificial neural network

It is crucial to predict the entire pyrolysis process of charring materials infiltrated with flammable liquids to provide guidance for reducing the fire hazards and implementing numerical simulations of fire accidents caused by the leakage of flammable liquids. In the present study, pyrolysis data obtained from the thermogravimetric experiments were preprocessed using linear interpolation and data normalization methods. The processed data set was then used to train the artificial neural network (ANN) framework to predict the pyrolysis behaviors of typical charring material (Mongolian Scots pine) infiltrated with typical flammable liquid (kerosene) under three different conditions: (1) pyrolysis at a constant mass fraction of kerosene with multiple heating rates; (2) pyrolysis at multiple mass fractions of kerosene with a constant heating rate; and (3) pyrolysis at multiple mass fractions of kerosene and multiple heating rates. The ANN, with the double hidden layer structure (6−3), was capable to well predict the entire pyrolysis behaviors of Mongolian Scots pine under all the three scenarios. Besides, five data transformation function (multiplication, exponential function with base e, logarithmic function with base e, square root, and exponentiation function) were applied to the present three input variables (temperature, mass fraction of kerosene, and heating rate) to generate new input variables in order to extract more characteristics among the pyrolysis data. Therein, the ANN utilizing the data transformation functions of multiplication and exponential function with base e exhibited the best predictive ability. Among the three input variables in the ANN (temperature, mass fraction of kerosene, and heating rate), temperature was identified as the most sensitive one to the prediction performance, followed by mass fraction of kerosene, with heating rate being the least sensitive.

Optimization of the Parameters of a Model Predictive Control System for an Industrial Fractionator

The problem of parametric synthesis of a model predictive control (MPC) system by the chemical process of production of the kerosene fraction of an industrial fractionator under conditions of constraints and uncertainty is considered. The optimal parameters of the MPC algorithm are obtained as a result of solving the problem of multi-criteria optimization, taking into account the intervally specified parameters of the plant model.

Pyrolysis Processing of Polymer Waste Components of Electronic Products

The recycling of ABS plastic as a component of electronic and electrical equipment waste by the method of low-temperature pyrolysis is shown and substantiated as well as obtaining alternative sources of energy: pyrolysis liquid, gas mixture, and pyrocarbon. The main components of electronic and electrical equipment waste, which consists of plastic and refractory oxides, along with copper and iron compounds, were analyzed. The composition of precious, toxic, rare, basic metals, and plastic waste is given. It is shown that the waste of electronic and electrical equipment is a valuable secondary raw material and requires separate environmentally friendly processing technologies. The thermal destruction of ABS plastic as a component of waste electronic and electrical equipment at a technological installation of periodic action in the absence of air oxygen and an acid-type catalyst was investigated. Gasoline, naphtha, kerosene, and diesel fractions were obtained by distillation of the pyrolysis liquid, and their qualitative and quantitative composition was studied by gas chromatography. It was established that the vast majority of compounds in different fractions are saturated С8–С16 hydrocarbons of normal and isomeric structure.

Liquid fuel production thermal degradation of mixed plastic waste

In this study, a mixture of high-density polyethylene (HDPE), low-density polyethylene (LDPE), polypropylene (PP), and polystyrene (PS) was pyrolyzed at a temperature range of 350-400 °C for two hours to produce hydrocarbon liquid, which was then distilled at a temperature range of 150-275 °C to recover the target kerosene fraction. The resulting kerosene had a calorific value of 43150.1 MJ/Kg, a sulphur content of 0.01, a flash point of 121, a smoke point of 24.8, a specific gravity of 0.733, water content of 0.08, and a copper corrosion rating of 1a. The physicochemical properties were generally within acceptable limits for commercial Household Kerosene (HHK), although the water content, acid value, and API gravity were slightly outside the standard. This study, therefore, proffers a solution to the menace of environmental pollution and energy crisis, which has given rise to the prevalence of artisanal refining and adulteration, leading to disastrous consequences such as property damage and even death.

Внедрение процесса ДМД1 для демеркаптанизации керосиновой фракции на ООО «Славянск ЭКО»

The results of laboratory tests of the DMD-1 process for demercaptanization of straight-run kerosene fraction at LLC Slavyansk ECO are presented. The optimal design of the unit for treatment the kerosene fraction from mercaptan sulfur using existing equipment has been selected. The implementation of this scheme allowsto obtain kerosene fraction that meets the requirements of GOST 10227-86.

Determination of stabilizing additives in kerosenes by the multisensor stripping voltammetry method

Relevance. To ensure the operational reliability of equipment, an urgent task is to control the content of antioxidant and antiwear additives in engine fuel at all stages from its production to its intended use. At the stages of fuel use (storage, transfer, transportation, etc.), antioxidant additives can be used up due to natural oxidative processes that inevitably occur in the fuel. As for the antiwear additives, being surfactants by their nature, they can be adsorbed on the surfaces of the process equipment with which the fuel comes into contact. As a result, at the stage of intended use, the level of fuel quality can significantly decrease. Controlling the content of additives in the fuel at the stage of application will allow taking timely measures to restore the fuel quality and reduce the risks of accidents. Aim. To propose an approach to the analysis of the component composition of fuels, which makes it possible to control the content of additives. Objects. Samples of kerosene fractions that are used as the basis or components of commercial fuels of the TС-1 and RT brands produced by oil refineries, stabilizing anti-wear additives "Hi-Tech" and DNA (distilled petroleum acids). Methods. In the framework of the research devoted to solving the problem of operational control of the content of certain additives in various petroleum products, much attention was paid to the possibility of using voltammetry methods for these purposes. Voltammetry is a set of electrochemical methods of research and analysis based on the patterns of electric current flow through an electrochemical cell – an analytical system of two electrodes separated by an analyzed electrolyte solution. Analytical information using voltammetric methods is obtained on the basis of studying the dependence of the current strength in an electrolytic cell on the potential of the indicator microelectrode immersed in the analyzed solution, on which the analyzed reaction proceeds. Results. The paper introduces an approach to the analysis of the component composition of fuels by the multisensor stripping voltammetry method. This approach makes it possible to control the content of additives in the fuel. A feature of the electrochemical behavior of various grades of hydrogenated jet fuel was studied in order to develop a mobile express method for determining additives in them. The authors have developed a test system consisting of an aqueous solution of dimethylformamide (40%) with potassium chloride (0,1 M), cobalt, zinc and mercury cations (2,5×10–4 M). The analyzed fuel was introduced in a ratio of 30:1. The resulting mixture, 50 μl in volume, was mixed and applied to an indicator electrode for subsequent electrochemical measurements. The determination of additives in kerosene in the developed method was carried out by their influence on the peaks of the currents of dissolution of metals in the test system. In this case not only the task of determining the presence of additives in kerosene was solved, but also the problem of their identification.

Production of Bio hydrocarbons from Vegetable Oils and Animal Fats Using Magnesium Oxide as Catalyst

Bio hydrocarbons are renewable fuels that can be produced through the catalytic deoxygenation of fatty acids, resulting in compositions like gasoline, kerosene, and diesel fractions derived from petroleum. The objective of this study is to generate gasoline, kerosene, and diesel from vegetable oils and animal fats using an MgO catalyst synthesized through the calcination of Mg-citrate. The characterization of the MgO catalyst, employing Fourier Transform Infrared (FTIR), X-Ray Diffraction (XRD) and Brunauer-Emmett-Teller (BET) surface adsorption method, revealed the presence of crystalline MgO and showed that mesoporous MgO with average pore size of 15.52 nm and exhibiting a surface area of 35.68 m2 g-1. The MgO catalyst was utilized in the deoxygenation reaction of palm oil, palm wax, and chicken fat, leading to the production of bio hydrocarbons with paraffin and olefin compositions like those found in gasoline, kerosene, and diesel derived from petroleum. Gas Chromatography-Mass Spectroscopy (GCMS) analysis of the liquid product demonstrated that the highest quantity of gasoline was derived from palm wax, followed by palm oil and chicken fat. Palm wax exhibits promising potential as a raw material for gasoline production through the deoxygenation reaction, specifically through decarboxylation and decarbonylation processes facilitated by the MgO catalyst.

Catalytic Cracking of Palm Oil: Effect of Catalyst Reuse and Reaction Time of the Quality of Biofuels-like Fractions

This work systematically investigated the influence of catalyst reuse and reaction time on the yield and quality of organic liquid products (OLP) obtained in a cracking pilot plant at 450 °C and 1.0 atm. The distillation of OLP produced 04 (four) distilled fractions (gasoline, kerosene, and green diesel). The biofuels-like fractions are liquid mixtures with high content of hydrocarbons (alkanes, alkenes, and aromatics) with potential application as substitutes for fossil fuels in internal combustion motors. The quality of the biofuels was certified by physical-chemical analysis and FT-IR and GC-MS analysis. The experimental results showed the feasibility of applying the spent sodium carbonate twice in the catalytic cracking of vegetable oils. The physical-chemical properties (density, viscosity, acid value, saponification value, and flash point) of OLP decrease as the reaction time increases. The distillation of OLP yields 62.35% (wt.), producing green-like gasoline, kerosene, and diesel fractions rich in hydrocarbons. Therefore, biofuel-like fractions produced by distillation of OLP have a great potential for replacing partially petroleum-derived fuels.

Unveiling ZrO2/natural zeolite catalytic performance on hydrocracking palm oil mill effluent residue

Palm oil mill effluent (POME) is the largest liquid waste from crude palm oil production. This liquid waste still contains a lot of chemical components, solid deposits, and oil which is dangerous if released directly into the environment. The residual oil and grease components contained in POME can be further extracted and converted into fuel fractions. This study investigates the conversion of residual oil from POME into fuel fractions through hydrocracking. A ZrO2/Sarulla natural zeolite (SNZ) catalyst was used, characterized by a particle size of 1-1.5 µm, a surface area of 73.3 m2/g, a pore volume of 0.161 cc/g, and a pore diameter of 3.35 nm. The effect of catalyst mass was studied, with the total conversion increasing to a certain extent with increasing catalyst mass, however, an increase in coke formation decreased the product yield. The highest gasoline fraction selectivity was obtained with a catalyst mass of 0.09 wt% (~42%), while the kerosene fraction was most obtained with a catalyst mass of 0.15 wt% (~40%). The liquid product with a catalyst mass of 0.15 wt% had the highest HHV of 44.2 MJ/kg, a 12% increase from the HHV of POME oil residue (39.4 MJ/kg). The results demonstrate the potential of using residual oil from POME as a source for fuel production and the use of natural zeolite-based catalysts as hydrocracking catalysts.

Process analysis and comparative assessment of advanced thermochemical pathways for e-kerosene production

Climate change and energy supply are major driving forces for the promotion of sustainable fuels production. In the aviation sector, due to inherent difficulties to adopt electrification methods for long distance flights, the successful implementation of sustainable aviation fuel (SAF) is crucial for the achievement of greenhouse gas emissions mitigation strategies. This study presents four different pathways for the valorization of captured CO2 into synthetic kerosene using hydrogen and demonstrates the comparative assessment in terms of various technical and aspects such as hydrogen consumption, thermal energetic efficiency and produced e-kerosene quality. Two pathways are based on Fischer-Tropsch synthesis, a low-temperature CO conversion though reverse water-gas shift reaction and a high-temperature direct CO2 conversion, while the other two are based on the valorization and upgrading of light alcohols (methanol and ethanol) derived from CO2 hydrogenation. The process models were developed in Aspen Plus. Simulation results revealed that the low-temperature CO conversion pathway is the most efficient to maximize jet fuel yield with the lower energy and exergy losses. Indicatively for that case, 90.7% of the initial carbon is utilized for kerosene fraction synthesis, the overall thermal efficiency is 70.9% whereas the plant exergetic efficiency is 72.6%. The basic properties of the produced e-kerosene for all pathways meet with the required Jet-A1 specifications or are close to them.

Butyl acrylate/TiO2–copolymer hybrid one-dimensional photonic crystal–based colorimetric sensor for detection of C6–C16 n-alkanes of kerosene in adulterated diesel

Diesel fuel, which is widely used in engines, generators, and industrial equipment, is often adulterated with kerosene. The use of adulterated diesel fuel reduces the performance and durability of diesel–fuel-powered engines, causes environmental pollution, and promotes tax evasion. However, detecting kerosene in diesel using a high-precision instrumental technique such as gas chromatography with flame ionization detection is difficult because both diesel and kerosene contain C6–C16 paraffins. In this study, we developed a simple and reliable colorimetric sensor to detect various volumetric fractions of kerosene in diesel. A novel 15-layered one-dimensional photonic crystal (1D PC) was prepared using a photo-crosslinked butyl acrylate (BA)–based copolymer [P(BA-co-BPA)] as the low-refractive-index material and a photo-crosslinked copolymer–TiO2 hybrid (Ti70) as the high-refractive-index material. The P(BA-co-BPA) layers swelled to a greater extent in smaller-sized C6–C16n-alkanes than in the larger ones. Consequently, the reflection colors of P(BA-co-BPA)/Ti70 PC underwent a greater red shift from the sky-blue color of the pristine state as the swelling increased from the C16 to the C6n-alkanes. When immersed in pure diesel, the 1D PC exhibited a green color, which underwent a greater red shift as the volume fraction of kerosene increased from 10% (∼limit of colorimetric detection) to 100% in the kerosene + diesel mixtures. The 1D PC reached saturation within 45 min and changed color from the sky-blue corresponding to the pristine state to greenish yellow, yellow, yellow-orange, orange, and reddish orange in 10%, 20%, 30%, 50–70%, and 100% kerosene, respectively. Moreover, it exhibited recyclability in five swelling/deswelling cycles in diesel and kerosene. We expect that these findings will promote the development of simple and state-of-the-art 1D PC sensors.

E-fuels, technical and economic analysis of the production of synthetic kerosene precursor as sustainable aviation fuel

In the context of European and national energy policies to pursue the energy transition process, the issue of alternative-renewable liquid fuels is clearly addressed, whose purpose is to support the growth of sustainable mobility towards the goal of net zero emissions. On the base of the goals to be achieved in the medium and long term in relation to the theme of decarbonization and the development of new sustainable technologies, the present work deals with the e-fuels, which are produced by hydrogen from water electrolysis driven by renewable energy and CO2 captured from air or industrial sources. In particular, the attention is focused on the production of synthetic kerosene with the purpose to decarbonize the aviation sector, which is one of the most difficult electrifiable sectors due to logistical problems. The main objective of this work is the techno-economic analysis of the production of synthetic kerosene starting from green H2 and CO2 from direct air capture. The study of two main process schemes is carried out for the production of a synthetic crude oil, also called syncrude, rich in the kerosene fraction of interest. In the first scheme, called two-stage or indirect process, the incoming carbon dioxide and hydrogen are transformed through the Reverse-Water-Gas-Shift (RWGS) reaction in a syngas which allows to produce, by means of the Fischer-Tropsch (FT) reaction, the product of interest. The second scheme, referred to as single-stage or direct process, involves the direct formation of syncrude (direct FT-CO2) starting from carbon dioxide and hydrogen. In both cases, kinetic models representative of the considered reactions are selected in order to carry out an accurate process analysis. Through sensitivity analysis and process evaluations, some process optimizations like material recycle and heat integration are performed in order to increasing the efficiency and carry out a cost comparison to evaluate economic feasibility. Regarding the indirect and direct processes, 66.18 bbl/d and 38.46 bbl/d are produced respectively. Considering all the results and scenarios with and without optimizations, the range of the product cost is from 460 to 1435 €/bbl for the indirect process and from 752 to 2364 €/bbl for the direct process. These values strongly depend on the considered prices of power energy and hydrogen used for the present work.

PERFORMANCE EVALUATION OF TRAYS IN ATMOSPHERIC FRACTIONATION COLUMN WITH SOUTH PALEMBANG DISTRICT (SPD) CRUDE OIL FEED

Distillation's role is to separate the components it separates based on the boiling point of each component to produce the desired product with the principle of evaporation, namely the evaporation of components. In the industrial world the role of fractional distillation is very important. This study aims to design a fractional distillation apparatus, to know the process and performance of the column and the theory of fractionation separation with the role of column support facilities. Using raw material in the form of 10 liters of SPD crude oil, the separation is divided into three fractions. Then the product from the top section is the gasoline fraction with a temperature range of 28 - 165 ¬¬oC, the middle section is the kerosene fraction with a temperature range of 165 - 300 oC, and the bottom part is the diesel fraction with a temperature range of 300 - 350 oC. So it can be concluded that the distillation column is in accordance with the desired calculation of the raw materials used.

Effect of fuel temperature on mixing characteristics of a kerosene jet injected into a cavity-based supersonic combustor

To explain the phenomenon observed in previous experiments of kerosene-ignition failure in scramjet combustors as the kerosene temperature increases, we numerically investigate the mixing characteristics of a kerosene jet injected into a cavity-based supersonic combustor at different injection temperatures by using a compressible two-phase flow large-eddy simulation based on the Eulerian–Lagrangian approach. The results indicate that, upon injecting kerosene at high temperatures, the flow field preceding the leading edge of the cavity is similar to a typical gas jet in supersonic crossflow. The wall counter-rotating vortex pair (CVP) develops more fully and eventually becomes the main vortex pair. This evolution of the wall CVP modifies the cavity shear layer and alters the local flow-field characteristics near the cavity. Upon injecting kerosene at high temperatures, its evaporation rate increases sharply and the cavity recirculation zone enlarges, which causes more kerosene vapor to be entrained into the cavity. Because the kerosene-vapor temperature is lower than that of the low-speed fluid in the cavity, a significant amount of kerosene vapor entering the cavity not only makes the mass fraction of kerosene in the cavity exceed the fuel stoichiometric mass fraction but also reduces the temperature in the cavity, which negatively impacts the ignition process. The ignition delay time is much longer when the injection temperature is high, which is consistent with the inability of the initial flame kernel to form in the experiment.

ОСОБЛИВОСТІ ЗАСТОСУВАННЯ РЕАКТИВНИХ ПАЛИВ ДЛЯ АВІАЦІЙНИХ ГАЗОТУРБІННИХ ДВИГУНІВ

The purpose of this article is to study the features of the usage of jet fuels for aviation gas turbine engines and the importance of the chymotology for the study of aviation kerosene and technical fluids usage in the of modern aviation technology. The role of practical aviation chymotology in ensuring reliable operation of aviation equipment and functional application of fuel and lubricants and technical fluids in existing and future aviation equipment is revealed in the work. In the present time jet fuels of both domestic and foreign production are supplied to meet the needs of the Air Force. The main tasks of chemical engineering are: the study of the processes that take place in the use of fuel on modern aircraft and the justification of requirements for the level of quality of aviation jet fuels and the assessment of the possibilities of its use, the development of the approaches of the optimization of the fuel quality, unification and standardization of quality assessment methods. Modern aviation jet fuels are produced from oil in the process of direct distillation on atmospheric tubule or on an atmospheric vacuum tubule and purification of the kerosene fraction with the addition of the necessary additives in order to improve performance. Thermal stability is important for jet fuels, especially for supersonic aviation fuels, since in modern aircraft with supersonic flight speed airfield heating of aircraft structures to high temperatures takes place due to adiabatic air compression in front of the aircraft. The surface temperature of the aircraft at a speed of 3 Mach can reach +330oC , and at 4 Mach can reach + 630oC. The main direction of improving the thermal stability of jet fuels, especially for supersonic aviation, is to improve the design of aircrafts and aircraft engines, as well as to improve the quality of jet fuels. The main ways of increasing of the thermal stability of jet fuels are changes in the technology of fuel production, an improvement of cleaning technologies, the use of more efficient additives, the use of fine filtration of nitriding of fuels and fuel pre-cooling. Keywords: fuel and lubricants, technical fluids, practical aviation chemistry, quality control, operational properties, gas turbine engine, efficiency and reliability of operation, physicochemical properties.

Catalytic deoxygenation with SO42--Fe2O3/Al2O3 catalyst: Optimization by Taguchi method

This work investigates the optimization of reaction parameters with the Taguchi method for catalytic deoxygenation of waste cooking oil (WCO) as an alternative renewable fuel process. Commercial sulphated-ferric (II) oxide/alumina oxide catalyst has the potential as a deoxygenation catalyst due to its good physicochemical properties which enhance the removal of oxygenated species. The obtained pyrolysis oil analysed by GC-MS revealed the selectivity of the pyrolysis oil mostly in the range of light diesel and kerosene fraction. From an analysis of variance (ANOVA), temperature awarded the most significant impact (86.62%) in this catalytic deoxygenation as compared to three other parameters followed by reaction time > N2 flow > catalyst loading. From the GC-MS analysis, the maximum renewable diesel fraction of 49.66% was obtained at 400 °C, 1 wt% of catalyst, 90 min of reaction time and 20 cm3/min N2 flow. The predicted model by Taguchi in the present study validated by the experimental work shows a promising application in optimising the catalytic pyrolysis process for future use.

Production of transportation fuels via hydrotreating of scrap tires pyrolysis oil

The hydrotreating of scrap tires pyrolysis oil over commercial Ni-Mo/Al2O3 catalyst was researched for the best processing scheme allowing the production of high-quality alternative transportation fuels components of gasoline, jet, diesel, and marine fuel. Despite the initial high content of olefins, aromatics, sulfur, and nitrogen in pyrolysis oil, fuel components obtained by redistillation after the hydrotreating at 360 °C and 10 MPa met the majority of standard fuel specifications. Although the octane number of the naphtha fraction was lower, this fraction can be used as acomponent of the gasoline pool directly or after the catalytic reforming. Kerosene fraction can be utilized as jet fuel after the additional mild hydrotreatment or blending with hydroprocessed esters and fatty acids (HEFA) to decrease aromatics content. Diesel fraction can be blended with hydrotreated vegetable oils (HVO) to fulfill the density and cetane index specification. The bottom residue can be utilized as a low-sulfur fuel oil component in marine transportation.

Co-Hydrotreatment of Yellow Greases and the Water-Insoluble Fraction of Pyrolysis Oil. Part I: Experimental Design to Increase Kerosene Yield and Reduce Coke Formation

This paper reports the co-hydrotreatment of Biomass Technology Group commercial pyrolysis oil water-insoluble (WIS) phase (also known as pyrolytic lignin) and yellow greases (waste cooking oil), aiming to produce sustainable aviation fuels (SAFs). We use a sulfided NiMo/Al2O3 blend with 16 wt % WIS and a central composite experimental design to identify processing conditions increasing kerosene yield and reducing coke formation. The input variables were: (1) reaction temperature (320, 350, and 380 °C), (2) initial hydrogen pressure (5, 6, and 7 MPa), and (3) amount of catalyst (0.7, 1.0, and 1.3 g). The hydrotreated oily phases were distilled to obtain gasoline (<150 °C), kerosene (150–250 °C), diesel (250–350 °C), and residual oil (>350 °C). The reaction temperature is the main factor affecting the yield of gaseous, solid, and liquid products. Meanwhile, a higher initial hydrogen pressure and catalyst loading increased the yield of kerosene and other distillates and decreased the coke formation. A high temperature correlated with a lower content of oxygenates in kerosene cuts. Based on our experimental results, we propose to conduct hydrotreatment studies at 380 °C, initial H2 pressure of 7 MPa, and 1.3 g of catalyst. Under the identified conditions, it was possible to improve the kerosene yield to more than 20 wt % and reduce the yield of coke to close to 2.0 wt %. The chemical composition and fuel properties of the gasoline, kerosene, and diesel cuts were thoroughly analyzed. The content of aromatics and phenols in the kerosene fraction produced at the conditions identified in this project exceeded the recommended values for SAFs. New strategies (such as blending and more intense hydrotreatment to remove oxygenated compounds) need to be implemented to reduce the content of these molecules in our final product.

Modeling and optimization of AVT-3 and AT-2 crude оil distillation units at Atyrau refinery

The article shows examples of the use of Aspen Hysys software for optimization of the AVT-3 and AT-2 crude oil distillation units at Atyrau Oil Refinery. The Aspen Hysys software was implemented at the Atyrau Refinery for the first time.Calculations were carried out to optimize AVT-3 and AT-2 crude distillation units of the Atyrau refinery with the construction of a model in Aspen Hysys. As a result of the calculations, the possibility of improving the efficiency of individual parts of units was revealed, pilot runs on the units were carried out to confirm. During the pilot run on the AVT-3 unit, a restriction was revealed on regulating the temperature of the cube of the steam column, which affects the stabilization of the kerosene fraction beginning boiling point. During the pilot run at the AT-2 unit, it was revealed that an increase in steam consumption in the main atmospheric oil distillation column contributes to a decrease in the content of light fractions in straight-run fuel, while the yields of gasoline and kerosene-gasoil fractions increase. Thus, the positive effect of Aspen Hysys application at the Atyrau refinery for optimization of crude oil distillation units and identification of technological limitations is shown.