OIL PURIFICATION METHOD Russian patent published in 2009 - IPC C10G31/09 B01D17/00 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of purifying oil, in which separation and coagulation are done in tangential mode on separating and coagulating porous walls of a filter, made in form of a sandwich from several coaxial cylindrical surfaces made from highly-porous cellular metal. During separation on the outer generatrix of the outer porous wall with deposition of a hydrophobic fluoroplastic coating, the main part of mechanical impurities and water with size greater than the standard size of pores are constantly taken into a separator made from two connected drums using a turbulent stream, with a set of circular porous walls of highly-porous cellular metal fitted, with size of pores increasing along the stream, at the perforated bottom of the cup in the upper part of the inner drum. Impurities are concentrated and condensed during sedimentation inside the latter. There is further separation on a hydrophobic grid, fitted on the coaxial gap in the lower part of the drums. Residual mater is fed to the input of the pump. Purification of the tangential stream of the liquid medium takes place with coagulation of micro-water droplets on the next cylindrical walls of highly-porous cellular metal of the filter, made with increasing size of pores along the stream. Micro-water droplets passing through are separated on the hydrophobic inner surface of the last wall, with horizontal and vertical drainage windows-cavities, with collection and precipitation in a collector and cleaning the filter with reverse flow of purified medium.

EFFECT: improved method of purifying oil.

2 ex, 2 tbl, 2 dwg