USE OF VISBREAKING RESIDUE AS A RAW MATERIAL FOR THE PRODUCTION OF OXIDIZED BITUMEN
Rubrics: 2. CHEMICAL TECHNOLOGY
Authors:
1.
Kazan National Research Technological University
OOO «Gazpromneft' - Promyshlennye Innovacii»
OOO «Gazpromneft' - Promyshlennye Innovacii»
2.
KNITU
3.
Kazan National Research Technological University
(Department of Chemical Technology of Petroleum and Gas Processing, Associate professor)
employee from 01.01.2011 to 01.01.2025
Russian Federation
employee from 01.01.2011 to 01.01.2025
Russian Federation
4.
OOO «Gazpromneft' - Promyshlennye Innovacii»
5.
Kazan National Research Technological University
6.
OOO «Gazpromneft' - Promyshlennye Innovacii»
7.
Kazan National Research Technological University
Kazan, Russian Federation
Kazan, Russian Federation
Type:
Article
Pages:
from 58
to 63
Status:
Published
Received:
03.02.2026
Accepted:
13.03.2026
Published:
05.04.2026
Language:
Russian
Keywords:
VACUUM RESIDUE, BITUMEN, VISBREAKING RESIDUE, OXIDATION
Abstract:
This article considered the possibility of using the residue of the visbreaking process, a by-product of oil refining, as a component of raw materials for the production of oxidized bitumen in accordance with GOST 33133-2014. In the study the parameters of the oxidation process, including temperature, air flow rate and duration of oxidation in order to obtain bitumen of the required quality were studied. The quality of the obtained product was assessed by the following indicators: needle penetration depth, softening temperature, brittleness temperature, extensibility, dynamic viscosity, as well as indicators characterizing its thermo-oxidative stability. The influence of visbreaking residue on the properties of the obtained bitumen as a colloidal-dispersed system has been evaluated. Using experimental data, graphical dependences of quality indicators on technological parameters and visbreaking residue content are constructed. It was found that obtaining bitumen grade BND 70/100 according to GOST 33133-2014, corresponding to the requirements of the standard, including the indicators of thermo-oxidative stability, is possible at a concentration of visbreaking residue in the raw material no more than 10% wt. Also with increasing concentration of visbreaking residue in the raw material initially decreases and then increases the viscosity of the resulting product, which is associated with changes in its colloidal properties, namely the formation of larger aggregates of asphaltenes - the most high molecular weight compounds in the bitumen. In addition, the samples obtained using visbreaking residue, compared to the samples obtained by oxidation of tar, have a wider range of plasticity, which is associated with a lower content of saturated and higher content of aromatic hydrocarbons in the residue visbreaking. These factors emphasize the prospects of using visbreaking residues in the production of road bitumen
This article considered the possibility of using the residue of the visbreaking process, a by-product of oil refining, as a component of raw materials for the production of oxidized bitumen in accordance with GOST 33133-2014. In the study the parameters of the oxidation process, including temperature, air flow rate and duration of oxidation in order to obtain bitumen of the required quality were studied. The quality of the obtained product was assessed by the following indicators: needle penetration depth, softening temperature, brittleness temperature, extensibility, dynamic viscosity, as well as indicators characterizing its thermo-oxidative stability. The influence of visbreaking residue on the properties of the obtained bitumen as a colloidal-dispersed system has been evaluated. Using experimental data, graphical dependences of quality indicators on technological parameters and visbreaking residue content are constructed. It was found that obtaining bitumen grade BND 70/100 according to GOST 33133-2014, corresponding to the requirements of the standard, including the indicators of thermo-oxidative stability, is possible at a concentration of visbreaking residue in the raw material no more than 10% wt. Also with increasing concentration of visbreaking residue in the raw material initially decreases and then increases the viscosity of the resulting product, which is associated with changes in its colloidal properties, namely the formation of larger aggregates of asphaltenes - the most high molecular weight compounds in the bitumen. In addition, the samples obtained using visbreaking residue, compared to the samples obtained by oxidation of tar, have a wider range of plasticity, which is associated with a lower content of saturated and higher content of aromatic hydrocarbons in the residue visbreaking. These factors emphasize the prospects of using visbreaking residues in the production of road bitumen
Keywords:
VACUUM RESIDUE, BITUMEN, VISBREAKING RESIDUE, OXIDATION
VACUUM RESIDUE, BITUMEN, VISBREAKING RESIDUE, OXIDATION
