Altynov, Andrey Andreevich

Bogdanov, Ilya

Electronic archive of Tomsk Polytechnic University

XXI Международная конференция «Химия и химическая технология в XXI веке»508DIRECTIONS OF TRANSFORMATIONS OF STABLE GAS CONDENSATES WITH VARIOUS COMPOSITION ON A ZEOLITE CATALYSTA.A. Altynov, I.A. BogdanovScientific supervisor – PhD, associate professor M.V. KirginaLinguistic advisor – PhD-student A.A. AltynovNational Research Tomsk Polytechnic University 634050, Russia, Tomsk, 30 Lenin Avenue, andrey_altun@mail.ruThe production of high-quality motor fuels is the main task by domestic producers of petroleum products.The quality of the components used in the production of fuels, in particular motor gasolines, varies over a wide range and directly depends on the group composition of the feedstock. In addition, along with the use of traditional feedstock the is-sue of production high-octane gasoline components from alternative feedstock (associated petroleum gas, gas condensates) by processing it on zeolite catalysts, is becoming increasingly relevant [1, 2].Based on the foregoing, the authors considered the direction of transformations of hydrocarbons in-cluded in the composition of stable gas condensates (SGC) of various compositions on a zeolite catalyst.A number of tests on a laboratory catalytic unit, using a KN-30 zeolite catalyst, were carried out by a team of authors. The group hydrocarbon compo-sition of the studied SGC samples is shown in Ta-ble 1.The technological parameters of the tests are shown in Table 2.The group hydrocarbon composition of the ob-tained products is shown in Table 3. To determine the hydrocarbon composition of SGC samples and obtained products the gas-liquid chromatography method was used.Analyzing the data of Tables 1 and 3, we can note a general trend for the obtained products – with an increase in the process temperature, a significant increase in the content of aromatic hydrocarbons and a decrease in the content of n-paraffin hydrocar-bons are observed. These trends indicate that taking place the cracking reactions, with the subsequent formation of aromatic hydrocarbons from olefins by hydrogen transfer reactions.At a 375 °C temperature, the content of isopar-affins in the product obtained from SGC №1 increas-es (relative to the feedstock) much greater than the product obtained from SGC №2. This fact indicates about significant contribution of n-paraffins isomer-ization reactions at this temperature, however, with increasing process temperature, the contribution of these reactions decreases and the contribution of cracking reactions increases, including the cracking reactions of isoparaffins.Table 1. Group hydrocarbon composition of the stud-ied SGC samplesSubstances content, % vol. SGC sample №1 SGC sample №2N-paraffins 40.64 33.60Isoparaffins 38.25 44.40Naphthenes 19.35 17.09Aromatic hydrocarbons 0.62 3.09Olefins 1.14 1.86Table 2. Technological parameters of the testsParameter ValueTemperature, °С 375 425Pressure, MPa 0.25Feedstock space velocity, ml/min 0.33Table 3. Group hydrocarbon composition of the products, obtained under varying process temperatureSubstances content, % vol.SGC sample №1 SGC sample №2375 °С 425 °С 375 °С 425 °СN-paraffins 33.25 25.86 26.45 18.40Isoparaffins 43.94 38.98 45.34 31.45Naphthenes 7.74 6.29 6.94 9.01Aromatic hydrocarbons 10.26 25.25 19.08 37.33Olefins 4.81 3.62 2.19 3.86 Секция 7.  Химия и химическая технология на иностранном языке509Characteristic of all obtained products is a de-crease in the content of naphthenes relative to the feedstock. However, for products obtained from SGC №1, with increasing process temperature a de-crease in the content of naphthenes is observed, and for products obtained from SGC №2, an increase in the content of naphthenes is observed, which is probably due to the isoparaffins cyclization reac-tions content of which in SGC №2 is higher.References1.	 Shi	J.,	Wang	Y.,	Yang	W.,	Tang	Y.,	Xie	Z.	//	Chem-ical	Society	Reviews,	2015.–	V.44(24).–	P.8877.2.	 Altynov	A.A.,	 Bogdanov	 I.A,	 Temirbolat	 A.M.,	Belinskaya	N.S.,	Kirgina	M.V.	//	Oil	Processing	and	 Petrochemistry,	 2019.–	 V.11.–	 P.9–14.	 (in	Russ).STUDY OF PHYSICOCHEMICAL PROPERTIES DYNAMICS OF KAZAKHSTAN AND WEST SIBERIAN OIL VACUUM GAS DURING HYDROPROCESSINGS.B. Arkenova, А.А. Oreshina, Е.К. Vimyatnin, Т. Kaliev, G.Y. NazarovaScientific adviser – DESc, professor E.N. IvashkinaNational Research Tomsk Polytechnic University 634050, Russia, Tomsk, 30 Lenin Avenue, arkenova19@gmail.comNowadays modern oil refining industry is chal-lenged to solve many economic and technology problems. This is caused by both increasing demand for high-quality motor fuels and the growing pro-portion of high-sulfur heavy oils in the total amount of crude oil extracted and refined in Russia as well as in many other countries of the world. Thus, there is a rapid increase of the importance of hydrocata-lytic processes in oil refining.Hydrotreating is a very important large-ton-nage process in modern refineries. Various straight-run fractions and gas oils of secondary origin are hydrotreated. The improving of hydrotreating tech-nology was due to tightening of environmental re-quirements and laws. This trend was caused, in its turn, by the fact that large amounts of harmful gases and liquids are emitted after the combustion of fuel into the atmosphere [1].The purpose of the work was to determine the composition and chemical properties of vacuum gas oil obtained during the distillation of fuel oil from Kazakhstan and West Siberian oil mixture. The process of distillation is then followed by further processing on the catalytic cracking facilities with preliminary hydrotreating in the KT-1/1 deep oil production unit.Therefore, the research object is vacuum gas oil obtained from Kazakhstan and West Siberian Table 1. Physico-chemical properties of vacuum gas oilSample Sulfur content, wt. % Kinematic viscosity at 50 °С, mm2/sDensity at 20 °С, g/cm3Molecular weight, g/molNon-hydrotreated vacuum gas oil 1.04–1.655 21.942–28.044 0.9014–0.9068 312.3–361.3Hydrotreated vacuum gas oil 0.078–0.152 24.257–28.888 0.8899–0.8927 338.5–342.1Table 2. The group composition of vacuum gas oilSampleHydrocarbon type compositionParaffin hydrocar-bons, wt. %Aromatic hydro-carbons, wt. % Resinous compo-nents, wt. % Non-hydrotreated vacuum gas oil 48.80–52.33 42.73–45.17 4.87–6.92Hydrotreated Vac-uum Gas Oil 56.80–61.53 35.44–40.46 2.38–3.03

Directions of transformations of stable gas condensates with various composition on a zeolite catalyst

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Directions of transformations of stable gas condensates with various composition on a zeolite catalyst

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