ANALYSIS OF THE EFFECTIVENESS OF THE HEAVY OIL SLUDGE HYDROCRACKING PROCESS WHEN MODIFYING COAL ADDITIVES WITH METAL OXIDES
Rubrics: 2. CHEMICAL TECHNOLOGY
Authors:
1.
Kazanskiy nacional'nyy issledovatel'skiy tehnologicheskiy universitet
2.
Kazan National Research Technological University
3.
KNITU; KNRTU
4.
Ufimskiy Gosudarstvennyy Neftyanoy Tehnicheskiy Universitet
5.
KNITU
6.
KNITU
7.
Kazan National Research Technological University
Kazan, Russian Federation
Kazan, Russian Federation
Type:
Article
Pages:
from 67
to 72
Status:
Published
Received:
25.12.2025
Accepted:
25.12.2025
Published:
25.12.2025
Language:
Russian
Keywords:
HEAVY PETROLEUM RESIDUE, HYDROCRACKING, TAR-ASPHALTENE SUBSTANCES (SAV), COAL ADDITIVE, PORE SPACE, HYDROGENATION, LIQUID HYDROCARBONS
Abstract (English):
The paper considers the possibility of increasing the depth of processing of heavy residual petroleum raw materials in the process of suspension-phase hydrocracking. The main focus is on the problems associated with the use of activated and modified carbon additives. The results of a study of the catalytic activity of coal additives impregnated with nickel and iron metals are presented. It is shown that the use of modified carbon additives NiO and Fe2O3 in the process of hydrocracking tar allows to increase the conversion of asphaltenes from 53% to 78% and reduce the temperature of the process from 460 ° C to 450 ° C. As a result, there is an increase in the yield of light fuel fractions from 7% to 17%. A characteristic feature of the use of a modified carbon additive is an increase in the content of saturated hydrocarbons and a decrease in the concentration of aromatic compounds in the final products, which indicates an increase in the intensity of the hydrogenation reactions of the formed unsaturated compounds. The article discusses a flow-through scheme for cracking heavy oil using modified coal additives according to the fuel option, including the process of compounding with coal additives and hydrogen, heating raw materials in a furnace, and cracking in a reactor unit, followed by separation of the products obtained in separators, and directing the gas phase to traditional hydrocracking reactors to produce light petroleum products. The proposed flow-through scheme differs from existing analogues by the presence of blocks for modifying the carbon additive and regenerating the spent additive. A methodological approach is presented for quantifying the economic efficiency of coal additive modifications using the example of an increase in the output of more expensive commodity fractions during hydrocracking of residual petroleum raw materials. It is shown that the use of modified coal additives in the hydrocracking process of residual petroleum raw materials leads to an increase in the weighted average price of the products obtained, which leads to a 22% increase in profits.
The paper considers the possibility of increasing the depth of processing of heavy residual petroleum raw materials in the process of suspension-phase hydrocracking. The main focus is on the problems associated with the use of activated and modified carbon additives. The results of a study of the catalytic activity of coal additives impregnated with nickel and iron metals are presented. It is shown that the use of modified carbon additives NiO and Fe2O3 in the process of hydrocracking tar allows to increase the conversion of asphaltenes from 53% to 78% and reduce the temperature of the process from 460 ° C to 450 ° C. As a result, there is an increase in the yield of light fuel fractions from 7% to 17%. A characteristic feature of the use of a modified carbon additive is an increase in the content of saturated hydrocarbons and a decrease in the concentration of aromatic compounds in the final products, which indicates an increase in the intensity of the hydrogenation reactions of the formed unsaturated compounds. The article discusses a flow-through scheme for cracking heavy oil using modified coal additives according to the fuel option, including the process of compounding with coal additives and hydrogen, heating raw materials in a furnace, and cracking in a reactor unit, followed by separation of the products obtained in separators, and directing the gas phase to traditional hydrocracking reactors to produce light petroleum products. The proposed flow-through scheme differs from existing analogues by the presence of blocks for modifying the carbon additive and regenerating the spent additive. A methodological approach is presented for quantifying the economic efficiency of coal additive modifications using the example of an increase in the output of more expensive commodity fractions during hydrocracking of residual petroleum raw materials. It is shown that the use of modified coal additives in the hydrocracking process of residual petroleum raw materials leads to an increase in the weighted average price of the products obtained, which leads to a 22% increase in profits.
Keywords:
HEAVY PETROLEUM RESIDUE, HYDROCRACKING, TAR-ASPHALTENE SUBSTANCES (SAV), COAL ADDITIVE, PORE SPACE, HYDROGENATION, LIQUID HYDROCARBONS
HEAVY PETROLEUM RESIDUE, HYDROCRACKING, TAR-ASPHALTENE SUBSTANCES (SAV), COAL ADDITIVE, PORE SPACE, HYDROGENATION, LIQUID HYDROCARBONS
