SEPARATION OF HYDROCARBON EMULSIONS BY POLYSULFONAMIDE MEMBRANES TREATED WITH CORONA DISCHARGE
Rubrics: 2. CHEMICAL TECHNOLOGY
Authors:
1.
Kazan National Research Technological University
2.
KNITU
3.
Kazan National Research Technological University
4.
Kazan National Research Technological University
Russian Federation
Russian Federation
5.
KNITU
Type:
Article
Pages:
from 68
to 75
Status:
Published
Received:
22.12.2025
Accepted:
23.12.2025
Published:
23.12.2025
Language:
Russian
Keywords:
WATER-OIL AND WATER-PETROLEUM EMULSIONS, POLYSULFONAMIDE MEMBRANE, CORONA DISCHARGE, MATHEMATICAL MODELING, LAGRANGE METHOD
Abstract (English):
Hydrocarbon emulsions formed as a result of industrial activity are usually characterized by high kinetic and thermodynamic stability and are difficult to destroy and purify using traditional water purification methods. One of the methods for separating water-oil and water-oil emulsions is the membrane method, which consists in selective separation of liquid from emulsion particles by passing a water flow through a porous partition. In the present work, we investigated the separation of model 1%, 3% and 5% water-oil emulsions based on I-20A oil stabilized with 0.1%, 0.3% and 0.5% Kosintol-242 surfactant, respectively (the amount of distilled water was 98.1%, 96.7% and 94.5%, respectively), as well as a 1% water-oil emulsion based on Devonian oil from the Tumutuk field, Republic of Tatarstan, stabilized with a 0.1% solution of Kosintol-242 surfactant. Polysulfonamide membranes with pore sizes of 0.002, 0.005 and 0.010 μm (mass of cut-off particles is 20, 50 and 100 kDa, respectively) were used as a filter element. The studied membranes were modified by corona discharge treatment at a voltage (U) of 5, 15, 25 and 35 kV and treatment time (τ) of 1, 3 and 5 min. Graphs of membrane productivity change depending on the process time and corona treatment modes are given. The process was simulated using the Lagrange function interpolation apparatus. High convergence of experimental and calculated data with a high approximation coefficient is shown.
Hydrocarbon emulsions formed as a result of industrial activity are usually characterized by high kinetic and thermodynamic stability and are difficult to destroy and purify using traditional water purification methods. One of the methods for separating water-oil and water-oil emulsions is the membrane method, which consists in selective separation of liquid from emulsion particles by passing a water flow through a porous partition. In the present work, we investigated the separation of model 1%, 3% and 5% water-oil emulsions based on I-20A oil stabilized with 0.1%, 0.3% and 0.5% Kosintol-242 surfactant, respectively (the amount of distilled water was 98.1%, 96.7% and 94.5%, respectively), as well as a 1% water-oil emulsion based on Devonian oil from the Tumutuk field, Republic of Tatarstan, stabilized with a 0.1% solution of Kosintol-242 surfactant. Polysulfonamide membranes with pore sizes of 0.002, 0.005 and 0.010 μm (mass of cut-off particles is 20, 50 and 100 kDa, respectively) were used as a filter element. The studied membranes were modified by corona discharge treatment at a voltage (U) of 5, 15, 25 and 35 kV and treatment time (τ) of 1, 3 and 5 min. Graphs of membrane productivity change depending on the process time and corona treatment modes are given. The process was simulated using the Lagrange function interpolation apparatus. High convergence of experimental and calculated data with a high approximation coefficient is shown.
Keywords:
WATER-OIL AND WATER-PETROLEUM EMULSIONS, POLYSULFONAMIDE MEMBRANE, CORONA DISCHARGE, MATHEMATICAL MODELING, LAGRANGE METHOD
WATER-OIL AND WATER-PETROLEUM EMULSIONS, POLYSULFONAMIDE MEMBRANE, CORONA DISCHARGE, MATHEMATICAL MODELING, LAGRANGE METHOD
