Two different and immiscible liquids, alcohol and vegetable oil, form an alcohol in oil emulsion when mixed. Intensification of mass transfer requires fine dispersion of the original emulsion. The choice of the appropriate equipment or device for this stage of the process largely determines the efficiency of the entire process. Known biodiesel fuel production technologiesRead More
A seminar on Transformer Life Extension was held in Bangkok, Thailand, on 12 March 2019. The event was a joint effort by GlobeCore and TIS Group and was attended by approximately 60 representatives of electrical power companies from all over Thailand. The interest to the topic of the seminar was high due to the highRead More
The ferromagnetic vortex layer devices are applied for intensification and improving efficiency of wastewater purification. One of the latest orders for this equipment was filled by GlobeCore for a large factory in China. Three AVS-100 units are already operated in China, in cyanide and fluoride removal from wastewater. In the case of two stage chemicalRead More
GlobeCore invites electric power industry specialists to visit our “Transformer Life Extension”, to take place on 2 April 2019 in Sao Paulo, Brazil. The seminar will be held at the following address: 06803-000 Embu das Artes – São Paulo, Av. Elias Yazbek, 2898. The seminar will be focused on the current issues of transformer reliabilityRead More
GlobeCore equipment was commissioned in Dhaka, Bangladesh, in the first quarter of this year. One of the local electric power companies purchased a CMM-4 and a CMM-6 units to service their power transformers. This type of equipment is well suited for such tasks as: 1) removal of particulate matter, water and gas from transformer oil;Read More
Petroleum bitumen is widely used in construction. It includes materials for roofing, waterproofing, air tight material, piping protection (and other types of anti-corrosion and even radiation production), materials for road top, surfacing of canals, settling ponds, sludge collectors etc. Despite the growing production of bitumen, it is still in short supply. Some of the supplyRead More
Petroleum based oil can be purified by chemical, physical and combined methods. The chemical processes are based on the reaction of impurities with chemicals. The reactions result in formation of substances which can be easily removed from the oil. Chemical methods include acidic treatment, dehydration by calcium compounds, dehydration and restoration by metal hydrides. ChemicalRead More
Emulsions are colloidal dispersed systems, where one liquid is dispersed in another in the form of small droplets without mixing. Examples of such emulsions are bitumen or tar and water. The content of bitumen or tar in road construction emulsions can reach 50-65%. Emulsion with bitumen or tar content above 70-75% are referred to asRead More
Wind turbines, operated at large wind farms, convert the power of the wind into electric energy. The reliability of generation of transmission of this energy depends on good condition of the turbine and its oil system. Oil in wind turbines lubricates and cools bearings and other moving parts. If the oil is contaminated or beginsRead More
The alternative energy is a rapidly developing field. Traditional energy sources are not renewable, and many countries try to replace at least some of them with the energy of the wind, the sun, the tides etc. In many places of the world, using alternative sources is more of a necessity, for instance in remote areasRead More
The issue of oil supply is as important as ever, due to low production levels in many countries. Turbine oils are not an exception. To improve the efficiency of crude oil refining, new petrochemical technologies are developed and implemented. Still, they are not enough to solve the problem: so improving environmentally friendly methods of processingRead More
Transformer oil is a common liquid dielectric used in many types of electrical equipment. It is most often used to increase the dielectric strength and cool transformer windings etc. One of the most important parameters of transformer oil is its dielectric strength. The minimal allowable dielectric strength is often strictly regulated. In general, the dielectricRead More
Turbine oils are used in a wide variety of roles. Apart from lubricating bearings and gears in steam and hydroturbines, these oils are also used in compressor, fans and other machinery. Turbine oils usually consist of highly purified paraffinic oils with various additives to achieve certain performance characteristics of the oils. Turbine oil requirements TurbineRead More
Comparing gasoline and diesel fuel shows that some things that are good in one, are not desirable in the other. For instance, auto-ignition is one the most important parameters of diesel fuel, but is very undesirable in gasoline. This property is quantified by the cetane number. This parameter is defined to a degree by theRead More
Transformer oil is a special fluid used in power transformers. The petroleum product is made by distillation using selective, phenol and acid/base purification, as well as hydrocracking. Transformer lifetime is greatly influenced by the quality and performance of transformer oil. Here are some of the criteria which transformer oils in power transformers must meet:: ReliableRead More
The need for turbine oil regeneration arises when power plants generate large quantities of used oil, the quality characteristics of which cannot be restored by standard purification methods. Turbine oil in use is susceptible to aging, which causes it to lose its performance characteristics and ultimately become unusable. Such oil must be replaced. However, dyeRead More
The conditions of turbine oil operation in a turbine generator are heavy due to a range of unfavorable factors. High temperature Heating of oil in the presence of air causes intensive oxidation and other changes in the oil. Due to evaporation of volatile fractions, viscosity grows, emulsification stability decreases etc. The heating of oil mostlyRead More
The two major groups are water-in-oil and oil-in-water emulsions. Besides, bitumen emulsion are classified according to the rate of separation: fast, medium and slow breakdown emulsions. The first groups includes emulsions which separate soon after contacting the mineral material. The smaller the particles of the mineral material, the faster the breakdown. Medium breakdown emulsions separateRead More
Hydrodynamic blending systems belong to the type of universal process equipment. The characteristic of hydrodynamic mixing process reduce production time, improve product quality and storage life. The result is that the user of such a unit enjoys not only high processing rate but also rapid return on investment. The hydrodynamic blending process is used forRead More
The results of many research efforts demonstrate that modifying bitumen with polymer additives results in a polymer modified bitumen (PMB) which under stress behaves as a reinforced material. Polymer modification additives are structure-forming; they disperse or create their own structure in the bitumen. The polymer frame limits, on the one hand, flowing at higher temperaturesRead More
