Dantek and Oil and Gas Industry

It does not matter if it is oil, fat or grease, we separate it from water.

Dantek and Oil and Gas Industry

The process of separating petroleum and oil from water as well as separating other suspended solids from wastewater is one of the most important parts of oil refineries, petrochemical and natural gas plants’ processing. Micro-nano bubbles are used to float these materials and separate them from the waste water. The method currently used for the separation process is the use of soluble air flotation namely DAF or soluble gas separation namely DGF. In this process, flotation is performed using air / gas dissolution mechanism in water and production of fine bubbles in micro-nano dimensions. In the flotation process using micro-nanobubbles, air / gas bubbles adhere to oil droplets and suspended particles in the fluid and float them on the surface. The two-phase vortex pump plays an effective role in this separation process by producing high densities of micro-nanobubbles and practically replaces the traditional bubble production systems which were using a saturation tank, air compressor, water pump, expansion valves and static mixers. The unique physical properties of nanobubbles produced in two-phase vortex pumps show their effective role in separation processes. Nanobubbles have a higher surface charge than ordinary bubbles, which results in better bonding of particles to them. In addition, increasing the surface area of nanobubbles compared to microbubbles leads to increased contact of bubbles with soluble particles and their attachment. This phenomenon leads to an increase in the amount of petroleum and oil floating on the surface of the fluid, and as a result, the efficiency of the separation process increases. Another very important feature of nanobubbles is their very high diffusion coefficient so that they can disperse in all parts of the solution to eventually reach saturation. When the nanobubbles and particles are sufficiently connected to each other, they change their state of non-flotation to flotation, and these bubbles carry the particles with themselves to the surface.

Other applications of micro-nanobubbles in the oil and gas industry include the following:

  • Accelerate the combustion process in the diesel engine
  • Reduce hydrogen sulfide and prevent corrosion of oil and gas transmission lines
  • Reduce fuel consumption in gas turbine engine
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