HYDRODYNAMIC CAVITATION AND ITS APPLICATION IN THE FUEL INDUSTRY
Usually, by mixing several components, we want to get a product with new properties and quality. In some cases, to solve this problem, a simple mechanical stirrer with an electric drive is enough. But more often you have to deal with components that mix poorly or do not combine well with each other, and a mechanical stirrer does not give the desired result. Therefore, the solutions use hydrodynamic cavitation technology. At the heart of its functioning is the principle of a complex impact on the processed substance with the use of several technical devices and phenomena. Let’s talk about them in detail.
The main physical phenomenon used is cavitation. Cavitation is understood as the appearance of vapor-filled bubbles in the liquid medium, due to rapid changes of pressure. When these bubbles collapse, the energy inside of them is released and it causes the occurrence of shock waves with the formation of free radicals, and also local heating of gas in cavitation cavities.
Cavitation appears as a result of an increase in the velocity of the fluid flow, which, in turn, causes local pressure drops.
The cavitation enhances a number of related effects:
mechanical cuts and impacts (increases their number, when exposed to hundreds of cutting pairs moving at high linear speed)
The combined effect of these factors allows us to divide the processed substance into microparticles.
APPLICATION OF HYDRODYNAMIC CAVITATION TECHNOLOGY IN THE OIL INDUSTRY
The effects described above that occur during CAVITATION REACTOR operation make this equipment quite effective in the oil refining industry. In particular, due to the impact of shock waves, long organic chains of oil are breaking to form new radicals, which allows obtaining completely new compounds and, as a result, increase the yield of light oil products.
Among other possible applications, it is also worth highlighting:
Oil processing in order to reduce its viscosity to facilitate transportation through pipelines. Paraffin is also destroyed during processing, which reduces the amount of deposits on the pipe walls;
Production of multicomponent fuels, mixed types of gasoline, biofuels, winter diesel fuel, etc .;
Obtaining fuel-oil emulsions. Adding water to fuel (fuel oil) up to 20% will reduce the amount of harmful emissions from combustion into the environment and increase the efficiency of the boiler;
Processing of diesel fuels, which reduces ash content, coking ability, and size of mechanical impurities, density, pour point and filtration coefficient. At the same time, an increase in the cetane number occurs.
Mixtures obtained can be stored for 30 to 180 days (depending on the formulation). In the case of mixed gasoline, the shelf life without delamination is 180 or more days.