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Загальна кількість знайдених документів : 2 Представлено документи з 1 до 2 |
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| 1. | 
Kudriavtsev S. Determining the influence of cavitation treatment on the octane number of gas-condensate gasoline modified with isopropanol [Електронний ресурс] / S. Kudriavtsev, O. Tselishchev, S. Leonenko, S. Boichenko, M. Loriia // Восточно-Европейский журнал передовых технологий. - 2020. - № 6(6). - С. 116-123. - Режим доступу: http://nbuv.gov.ua/UJRN/Vejpte_2020_6(6)__13 This paper reports a study into the effect of cavitation on the octane number of gas-condensate gasoline with the addition of isopropanol in the amount of 0 - 12 % by volume. The papers that confirm the impact of cavitation on the intensification of oil cracking reactions have been analyzed. Cavitation also initiates reactions of interaction between free radicals and alcohols. A laboratory installation scheme has been proposed to investigate the cavitation treatment process on the characteristics of gasoline modified with alcohols. A methodology has been devised for studying the effect of cavitation treatment intensity on the octane number of gasoline. A 0,3 - 0,9-point increase in the octane number of gas-condensate gasoline modified with isopropanol was experimentally proven following its cavitation treatment. The effect of the number of cavitation treatment cycles on the octane number indicator has been studied; it is shown that the stable value of an increase in the octane number is achieved over 7 - 8 cycles of cavitation treatment at a pressure at the outlet from the nozzle of 9,0 MPa. A reduction in the isopropanol additive, required to produce gasoline brands A-95 and A-98, when using a cavitation treatment technology was substantiated. It has been experimentally confirmed that compared to simple mechanical mixing of alcohol and hydrocarbon gasoline, the application of cavitation reduces the consumption of isopropanol by 17 % (from 3,0 % to 2,5 % by volume) in the production of gasoline brand A-95; and by 14 % (from 8,1 % to 7,0 % by volume) in the production of gasoline brand A-98. The effect of isopropanol concentration on the increase in the octane number of gasoline, measured by research method, under conditions of cavitation treatment is nonlinear in nature: with highs at concentrations of 1,0 % by volume, 3,5 % by volume, and 6,5 % by volume. Varying the initial concentration of isopropanol and the octane number of a hydrocarbon gasoline fraction can optimize the technological mode of production of gasoline brands A-95 and A-98 in terms of raw materials and energy consumption. | ||
| 2. |
Leonenko S. Revealing the effect of catalyst concentration on the process of fuel oil refining using the technology of aerosol nano catalysis [Електронний ресурс] / S. Leonenko, S. Kudryavtsev, I. Glikina, V. Tarasov, Е. Zolotarova // Восточно-Европейский журнал передовых технологий. - 2021. - № 1(6). - С. 64-71. - Режим доступу: http://nbuv.gov.ua/UJRN/Vejpte_2021_1(6)__9 The primary oil processing product is a mixture of different hydrocarbons. One of the hard-to-process petroleum products is fuel oil. This paper considers a method to derive clear (light) fractions of petroleum products by the catalytic processing of fuel oil on a zeolite-containing catalyst at 1 atm under the technological conditions of aerosol nanocatalysis. The prospect of the catalytic processing of a viscous residue - fuel oil - has been analyzed and estimated. The process is carried out by dispersing the catalytically active component in a vibratory-fluidized layer. Chemical transformation occurs during the constant mechanochemical activation of catalyst particles by forming an aerosol cloud in the reactive volume. Natural zeolite catalyst of the type Y was selected for research. Methods for separating the gasoline and diesel fractions of light hydrocarbons and for analyzing the gas phase have been given. The effect of the concentration of zeolite catalyst aerosol on the composition of cracking products (the yield of the gasoline and diesel fractions of light hydrocarbons) has been studied. It is noted that the rate of the course of fuel oil processing in the aerosol of the catalyst is 1,5 - 2 times higher than that in thermal processing. It has been found that in fuel oil processing based on the aerosol nanocatalysis technology, the concentration of the catalyst can be controlled to produce the final product. The study results have shown that the optimal conditions for processing fuel oil in theaerosol of the catalyst should be considered 773 K, a frequency of 5 Hz, a pressure of 1 atm. At the same time, a concentration of the catalyst of 1 - 5 g/m<^>3 | ||
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