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Article
Catalytic activity and stability of ethanol oxidation catalysts based on transition metals and transition metal spinels in alkaline ethanol media
This paper presents the results of a study of the catalytic activity of copper (Cu) electrodes, including gold (Au)-plated ones coated with nickel (Ni) foam, oxides, and hydroxides of iron (Fe) and cobalt (Co)...
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Article
Catalytic Activity and Stability of Oxygen Reduction Catalysts Based on Silver and Nickel in Alkali-Ethanol Media
Catalytic activity and stability of silver and nickel catalysts deposited on various copper substrates for oxygen reduction in ethanol-alkaline media EtOH + KOH + H2O (pH = 13.1), previously proposed for low-temp...
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Article
Analysis of Hydrodynamics of Horizontal Electric Dehydrators for Determining Ways of Intensification of Electrical Crude Oil Desalting and Dehydration
Numerical methods were used to analyze the hydrodynamic structure of flows in horizontal electric dehydrators at coil desalting plants. Based on the calculation results, new technical solutions and recommendat...
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Article
Influence of Oil Injection Methods on Hydrodynamics in Electric Dehydrators of Electric Desalting Plants
Numerical methods were used to analyze the hydrodynamics of flows in horizontal electric dehydrators as a function of the position of the nozzles for introducing the original oil into the apparatus. Based on t...
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Article
Oil Desalting Processes in Electric Desalting Plants as Object of Systems Analysis
Oil desalting processes in electric desalting plants are analyzed and the conditions affecting these processes are indicated. The structure of interrelationships of the system is disclosed by systems analysis ...
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Article
Comparative Analysis of Mixing Intensity and Losses Due to Hydraulic Resistance in Mixers of Electrical Desalting Plants
A comparative analysis of the intensity of mixing processes and losses due to hydraulic resistance in variously designed mixers used in electrical desalting plants of oil refineries was made. The effect of the...
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Article
Analysis of Potential for Use of Modern Computer Technologies for Studying the Hydrodynamics of an Incompressible Fluid in the Workspace of an Apparatus
An analysis of the potential for the use of modern computer technologies in the study of the hydrodynamics in the workspace of devices by means of numerical methods using the Salome–Meca numerical simulation p...
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Article
Development of a Mixer Design Using Numerical Methods to Calculate Flow Hydrodynamics in the Working Volume
The influence of the location of inlet nozzles for a secondary liquid stream on the flow structure in the working volume of ejection mixers used to produce water-in-oil emulsions was studied using numerical me...
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Article
Influence of Electric Field Strength on the Processes of Destruction and Creation of Water-Oil Emulsions During Crude Oil Desalting
It is shown that the use of an electric field significantly intensifies the process of destruction of water-oil emulsions, because for each droplet size there is a critical tension at which they begin to dispe...
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Article
Effect of Electric Field Nonuniformity on the Processes of Creation and Destruction of Water-Oil Emulsions During Crude Oil Desalting
The effect of electric field nonuniformity on the processes of creation and destruction of water-oil emulsions during crude oil desalting was investigated. It is shown that electrodemulsification of crude oil ...
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Article
Influence of Turbulence on the Processes of Creation and Destruction of Water-Oil Emulsions During Crude Oil Desalting
It is shown that the additional turbulence of the flow in the processes of electric desalting of oil will substantially intensify existing technologies. Turbulence facilitates the mixing of the emulsion, the c...
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Article
Analysis of Methods for Improving the Efficiency of Coalescence Process in Electric Oil Desalination and Dehydration Plants
The methods for increasing the efficiency of the coalescence process in electric desalination and dehydration of oil are analyzed. It is shown that one of the main reasons for the decrease in the efficiency of...
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Article
Influence of Electric Field Frequency on the Process of Destruction of Water-Oil Emulsions in Electric Dehydrators
The effect of electric field frequency on the processes of destruction of water-oil emulsions in electric dehydrators is investigated. It is shown that the existing theoretical concepts regarding the processes...
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Article
Foundations of Numerical Simulation and Design of Electrodynamic Devices for the Creation and Disintegration of Water-Oil Emulsions
Different methods for the numerical description of the behavior of a fluid–fluid interface in an electric field are proposed. A variation in the base system of equations for dielectrics and weakly conducting f...
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Article
Enhancement of Chemical-Technological Processes for Creation and Destruction of Water-Oil Emulsions Based on a Systems Analysis
Systems analysis methods were used to find ways to improve chemical-technological processes for creation and destruction of water-oil emulsions in an electric field. The chemical-technological system of an el...
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Article
Methodology of Study of the Behavior of Heterogeneous Systems in Water-Oil Emulsion Electrodispersion and Electrodemulsification Processes
A methodology of study of the behavior of heterogeneous systems in water–oil emulsion electrodispersion and electrodemulsification processes based on systems analysis methods is proposed. The processes occurri...
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Article
Development of Design of Electrodehydrator for Dewatering Water-Oil Emulsions by Numerical Methods Using Salome Software
The velocity and pressure field under boundary conditions corresponding to the design of an electrodehydrator were calculated by numerical methods using Salome software. The research helped select the optimal ...
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Article
Development of a Design for a Mixer/Electrocoalescing Unit for Production of Water-in-Oil Emulsions by Numerical Methods
The velocity and pressure fields under boundary conditions corresponding to the design of a mixer-electrocoalescing device for production of water-in-oil emulsions are analyzed by numerical methods in the SALO...
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Article
Breakdown of Water-Oil Emulsions in an Electric Field
Laws governing the breakdown of water-oil emulsions in an electric field are investigated to determine optimal parameters of electrodehydration for subsequent development of electric-dehydrator designs.
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Article
Modeling of the processes of coagulation and dispersion of water in low-conductive fluids in an electric field
Results of the physical and mathematical modeling of the processes of producing and disintegrating water-oil emulsions using the COMSOL Multiphysics software, as well as of electric fields, velocity fields, an...
