Browse Items (33 total)

  • Tags: Electric fields

This work aims to investigate the enhancement of the efficiency of phytoremediation (phytoR) by electrokinetic remediation (ER) by using graphite electrodes to depollute soil contaminated with petroleum. It was focused on the effects of electric…

It is known that 1,2,3 benzotriazole (BTA) can effectively limit the oil flow electrification in oil-paper insulation used in HVAC transformers. But it is still unclear whether BTA is applicable to converter transformers. Thus, the effects of BTA on…

The transportation of metal particles in oil has numerous applications in industrial areas. Under electric field, the electroosmotic flow of the oil-water interface can be generated

The existence of saltwater in extracted crude oil causes major problems such as corrosion and low quality of the extracted crude oil. Therefore, droplet coalescence of saltwater and desalination have been paid much attention by researchers about…

The key idea is to reduce the Iraqi crude oil viscosity, and enhance its rheological properties during its pipeline transportation at low temperatures. To achieve this objective, four different graphene supercapacitor designs are tested, by the…

The microscopic understanding of adsorption and storage of CO2 in minerals is of great significance for large-scale geological storage of CO2. The behaviors of the H2O CO2 system absorbed on the kaolinite surfaces with oscillating and static…

Strontium doped glass was synthesized by the conventional melt-quenching technique. Systematically measured dielectric properties revealed relaxor ferroelectric-like behavior in a broad range of frequency and temperature. The glassy nature of the…

Polymer film capacitors are widely used in engineering fields due to the advantages of high power density, high safety and good insulation and so on. In recent years, with the increasing demand of high temperature energy storage of dielectric thin…

The aim of present study is to develop a mathematical model to predict water and salt separation efficiencies in an industrial two stages crude oil desalting process. The considered process consists of mixing valve and electrostatic drums connected…

Crude oil dehydration is one of the first, most important and challenging steps in oil production and processing. To achieve rapid and energy-optimized demulsification of water-in-oil emulsions, Saudi Aramco and TechnipFMC have jointly developed a…

The main aim of the present study is to develop a detail mathematical model to investigate the performance of an industrial electrostatic desalting process. The dehydration process consists of a mixing valve and an electrostatic coalescer drum. The…

This work focuses on analyzing the electrokinetic behavior of asphaltenes of extra heavy oil. For this, electrodepositions were carried out in asphaltene solutions (4 %w/w) with two solvents of different polarities: toluene and chloroform. In…

Crude oil emulsions can reach stability levels that pose severe challenges for the processing industry. Certain conventional methods are used to deal with these challenges, such as chemical demulsification. In this article, two chemicals were mixed…

Through silane coupling and free radical polymerization, using SiO2 as core and poly4-vinylpyridine (P4VP) as shell, polymer brush with core-shell structure (P4VP@SiO2) was designed and synthesized. The structure of P4VP@SiO2 was further…

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 in a uniform electric field is…

Ultra high voltage (UHV) converter transformer valve-side bushings are the key equipment indirect current (DC) transmission projects, and are subjected to high voltage and large current with large number of harmonics simultaneously. The electric…

Asphaltenes are regarded as troublesome components of crude oils as their precipitation and deposition inside production wells and downstream infrastructure often result in a reduction of production capacity and, in critical cases, production…

The creation of oil emulsions due to mechanical strength and natural surfactants during production is undesirable. The challenges associated with transporting and refining oil have led researchers to probe into practical demulsification methods. An…

The efficient separation of water-in-oil emulsions plays significant roles in the petroleum and chemical industries, but deep purification using a single method is difficult. In this work, a combined treatment integrating a direct current electric…

This study investigated changes in soil ion content and soil water-holding capacity during electro-bioremediation (EK-Bio) of petroleum contaminated saline soil (ion content of 3.92 g/kg). The results indicated that the soil ions surrounded the…

Direct measurements of impurity freeze-out conditions in real time are needed to improve the reliability of liquefied natural gas (LNG) production. Benzene and carbon dioxide are two impurities in the feed mixtures processed by LNG plants that can…

As most of the oil fields gradually come to the middle and late exploitation period, the crude oil production becomes more complex, stable and water cut is also very high. This has brought challenges to oil–water separation in onshore and offshore…

We describe herein the design of a small AC electrostatic model coalescer for investigating coalescence efficiency of water in oil emulsions. The function of the model coalescer is tested on emulsions with different water cuts. In the coalescer,…

Present research study explores the flame propagation and combustion characteristics of premixed hydrogen enriched natural gas under a 100 Hz low-frequency alternating-current (AC) electric field with various hydrogen blend ratios (0–100%) and…

It has been reported that the application of a high-voltage electric field parallel to the oil flow direction or to a quiescent waxy crude oil can reduce the viscosity of the oil. In this work, an electric field perpendicular to the flow direction is…

It has been established that the separation of gas inclusions in crude oil before supplying to the oil pipeline is actual. The process of oil separation based on the magnetohydrodynamic effect should include not only an increase in pressure, but also…

Superconducting energy pipeline (SEP) is a new type of electrical energy transmission. It contains high‐temperature superconducting cables and liquefied natural gas pipelines and can simultaneously transmit electricity and liquefied natural gas…

Direct measurements of impurity freeze-out conditions in real time are needed to improve the reliability of liquefied natural gas (LNG) production. Benzene and carbon dioxide are two impurities in the feed mixtures processed by LNG plants that can…

The existence of saltwater in extracted crude oil causes major problems such as corrosion and low quality of the extracted crude oil. Therefore, droplet coalescence of saltwater and desalination have been paid much attention by researchers about…

Reducing the crude oil viscosity is important for the oil production and transportation. The micro–nanotechnology of viscosity reduction associated with electric field is found to be universal, working for all kinds of crude oil, including asphalt…

As most of the oil fields gradually come to the middle and late exploitation period, the crude oil production becomes more complex, stable and water cut is also very high. This has brought challenges to oil–water separation in onshore and offshore…

The key idea is to reduce the Iraqi crude oil viscosity, and enhance its rheological properties during its pipeline transportation at low temperatures. To achieve this objective, four different graphene supercapacitor designs are tested, by the…
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