FIELD: petrochemical industry; other industries; methods and devices for fractionation of the hydrocarbon liquid and the rotor hydrodynamic exciter.
SUBSTANCE: invention is pertaining to the method and installation for fractionation of the hydrocarbon liquid and used at that hydrodynamic exciter. The method includes preliminary hydro-mechanical working of the liquid by means of the hydrodynamic exciter. The liquid is fed to the inlet of the impeller, release it into the annular cavity restricted by the peripheral surface of the impeller and the coaxial surface of the stator, release from the annular cavity, then feed into the rectification column, execute in it distillation and withdraw the distillate and residual fractions. From the annular cavity the liquid is released into the vortex chamber with the centripetal vortex flow propagating up to the axis of rotation of the impeller, and withdrew the liquid from the vortex chamber by the central vortex flow, which axis coincides with the axis of rotation of the impeller. The counter-turbulent additive is injected in the liquid. For example, the additive is represented by polyisobutylene(PIB) in amount of 0.0001... 0.2 mass %. The hydrodynamic exciter contains the bladed impeller, the stator with the coaxial wall, the annular cavity between the peripheral surface of the impeller and the coaxial wall of the stator. The impeller is installed in cantilever manner, so that its inlet faces towards bearings, and between the carrying disk and the opposite wall of the stator the vortex chamber is formed and it is made advanced in radial direction with transition in the central outlet channel disposed along the rotation axis. Installation contains the feeding pump, the heating device, the rectification column and the described above hydrodynamic exciter placed between the feeding pump outlet and the heating device. The invention allows to increase effectiveness of preliminary hydro-mechanical working and the subsequent fractionation of the hydrocarbon fluid and to increase the yield of the light fractions.
EFFECT: invention ensures the increased effectiveness of preliminary hydro-mechanical working, the subsequent fractionation of the hydrocarbon liquid, the increased yield of the light fractions.
13 cl, 3 dwg, 2 tbl
