PRODUCTION OF BITUMINOUS BINDERS FROM HEAVY OIL OF THE ASHALCHINSKOYE FIELD: PROSPECTS AND OPPORTUNITIES
Rubrics: 2. CHEMICAL TECHNOLOGY
Authors:
1.
Kazan National Research Technological University
2.
Kazan National Research Technological University
3.
Kazan National Research Technological University
4.
Kazanskiy nacional'nyy issledovatel'skiy tehnologicheskiy universitet
5.
KNITU; KNRTU
6.
Kazan National Research Technological University
7.
KNITU
Type:
Article
Pages:
from 81
to 87
Status:
Published
Received:
28.01.2026
Accepted:
28.01.2026
Published:
28.01.2026
Language:
Russian
Keywords:
HEAVY HIGH-VISCOSITY OIL, TAR OXIDATION, ATMOSPHERIC / VACUUM DISTILLATION, COMPOUNDED BITUMEN, OXIDIZED BITUMEN, RESIDUAL BITUMEN, SARA, ROAD BITUMEN GOST 33133 2014
Abstract:
The problem of processing heavy ultra-viscous oils at oil refineries is relevant because of the low content of fuel fractions and the high content of sulfur, resins and asphaltenes, which reduces the service life of equipment and requires additional costs. Classical technologies are not profitable, which makes it relevant to search for various methods of processing raw materials. One of the most promising areas for processing ultra-viscous oils is related to the production of bitumen binders based on them, which are in demand in road construction. In modern practice of production of road bitumen binders, various production technologies are used. The main technologies include atmospheric-vacuum distillation and oxidation of heavy oil residues. The methods of compounding the obtained bitumen with secondary products of oil refining are also used. Special attention is paid to combined methods that allow obtaining binders with improved physical and chemical properties. The article considers heavy ultra-viscous oil of the Ashalchinsky field, prepared at the Ashalchi installation, which is characterized by a high content of resinous-asphaltene compounds, as the main object. Residual bitumen differing in different boiling points was obtained by atmospheric-vacuum distillation of ultraviscous oil. Oxidized bitumen was obtained in a semi-periodic static reactor during the oxidation of a heavy oil residue from atmospheric vacuum distillation of ultra-viscous oil with a boiling point of 420 °C. At the final stage of the study, in order to optimize the key physical and chemical parameters of bitumen, they were modified by compounding with a wide oil fraction. The conducted studies have shown that the process of oxidation of heavy oil residue of ultra-viscous oil is most suitable for the production of bitumen binders. However, the bitumen obtained both during oxidation and as a result of atmospheric vacuum distillation does not meet the basic requirements of GOST 33133-2014 for road binders and has unsatisfactory low-temperature performance. It is shown that the use of a straight-run fraction of ultra-viscous oil with boiling points from 420 to 550 °C for compounding bitumen makes it possible to obtain binders with improved low-temperature characteristics. Such materials demonstrate increased resistance to low temperatures without significant loss of plasticity, which opens up new prospects for their use in road construction and other areas of construction.
The problem of processing heavy ultra-viscous oils at oil refineries is relevant because of the low content of fuel fractions and the high content of sulfur, resins and asphaltenes, which reduces the service life of equipment and requires additional costs. Classical technologies are not profitable, which makes it relevant to search for various methods of processing raw materials. One of the most promising areas for processing ultra-viscous oils is related to the production of bitumen binders based on them, which are in demand in road construction. In modern practice of production of road bitumen binders, various production technologies are used. The main technologies include atmospheric-vacuum distillation and oxidation of heavy oil residues. The methods of compounding the obtained bitumen with secondary products of oil refining are also used. Special attention is paid to combined methods that allow obtaining binders with improved physical and chemical properties. The article considers heavy ultra-viscous oil of the Ashalchinsky field, prepared at the Ashalchi installation, which is characterized by a high content of resinous-asphaltene compounds, as the main object. Residual bitumen differing in different boiling points was obtained by atmospheric-vacuum distillation of ultraviscous oil. Oxidized bitumen was obtained in a semi-periodic static reactor during the oxidation of a heavy oil residue from atmospheric vacuum distillation of ultra-viscous oil with a boiling point of 420 °C. At the final stage of the study, in order to optimize the key physical and chemical parameters of bitumen, they were modified by compounding with a wide oil fraction. The conducted studies have shown that the process of oxidation of heavy oil residue of ultra-viscous oil is most suitable for the production of bitumen binders. However, the bitumen obtained both during oxidation and as a result of atmospheric vacuum distillation does not meet the basic requirements of GOST 33133-2014 for road binders and has unsatisfactory low-temperature performance. It is shown that the use of a straight-run fraction of ultra-viscous oil with boiling points from 420 to 550 °C for compounding bitumen makes it possible to obtain binders with improved low-temperature characteristics. Such materials demonstrate increased resistance to low temperatures without significant loss of plasticity, which opens up new prospects for their use in road construction and other areas of construction.
Keywords:
HEAVY HIGH-VISCOSITY OIL, TAR OXIDATION, ATMOSPHERIC / VACUUM DISTILLATION, COMPOUNDED BITUMEN, OXIDIZED BITUMEN, RESIDUAL BITUMEN, SARA, ROAD BITUMEN GOST 33133 2014
HEAVY HIGH-VISCOSITY OIL, TAR OXIDATION, ATMOSPHERIC / VACUUM DISTILLATION, COMPOUNDED BITUMEN, OXIDIZED BITUMEN, RESIDUAL BITUMEN, SARA, ROAD BITUMEN GOST 33133 2014
