REGENERATION OF KINETIC HYDRATE-FORMATION INHIBITOR Russian patent published in 2016 - IPC C10L3/10 C09K8/52 B01D3/02 B01D53/00 

FIELD: chemistry.

SUBSTANCE: invention relates to method for regeneration of kinetic hydrate-formation inhibitor, used as single type of hydrate-formation inhibitor in system of regeneration of hydrate-formation inhibitor. Method includes the following stages: i) supply of flow, containing mixture of water and kinetic hydrate-formation inhibitor into flash-separator (2) from supply line; ii) evaporation of water in flash-separator (2) be means of heat, supplied into external circulation circuit (3, 5, 7) with external heat-exchanger (6), or by means of heat, supplied by means of internal heat-exchanger (6), or by heating coils, located inside flash-separator (2), and discharge of evaporated water from flash-separator (2) in form of vapour (8); iii) concentration of kinetic hydrate-formation inhibitor in flash-separator (2) and in circulation circuit (3, 5, 7), which results in possibility to re-use kinetic hydrate-formation inhibitor. The invention also relates to system and application of method and system for prevention of hydrate formation during transportation of hydrocarbons in presence of water.

EFFECT: application of claimed method makes it possible to reuse kinetic hydrate-formation inhibitor.

7 cl, 4 dwg