METHOD OF EVAPORATION OF MULTICOMPONENT MIXES AND METHOD OF SUPPLY OF HOT FLOW INTO RECTIFYING COLUMNS Russian patent published in 2015 - IPC C10G7/00 

FIELD: oil-and-gas industry.

SUBSTANCE: invention relates to chemical, petrochemical and oil-processing industry. The invention relates to the method of evaporation of multicomponent mixes according to which the mix is heated at high pressure, and then triple evaporation is performed at pressure decrease, the obtained vapours are mixed and removed from the system, and liquid is removed after the third stage of evaporation. At first the evaporation is performed in two stages with step pressure decrease, then at the third stage the evaporation is performed at the expense of mixing of vapours, obtained at the first stage, and the liquid, obtained at the second stage; the vapours obtained at the third stage are returned to the second stage where they interact with liquid and are removed from the system. The invention also relates to the method of supply of hot flow into a rectifying column according to which the method of evaporation of multicomponent mixes is used.

EFFECT: increase of stripping percentage, increase of productivity, and decrease of energy consumption.

3 cl, 2 dwg