METHOD OF PURIFICATION OF THE LIQUID HYDROCARBONS FROM IMPURITIES, THE INSTALLATION FOR THE METHOD REALIZATION AND THE DESORBER FOR USAGE IN THE INSTALLATION Russian patent published in 2006 - IPC B01D3/14 B01D3/30 B01D53/18 

FIELD: chemical engineering; methods and devices for purification of liquid hydrocarbons from impurities.

SUBSTANCE: the invention is pertaining to the processes and devices of chemical engineering and may be used in power industry, oil-and-gas producing industry, chemical industry, food industry and other industries for purification of the liquid hydrocarbons, desorption, rectification and in the similar processes in the gas-liquid system, in particular, in the systems of ecological protection as installations for trapping vapor of hydrocarbons (HC)from the air-steam mixture (ASM) and their recuperation; in the systems of transportation, storage, and realization of the oil products. The liquid hydrocarbons saturated with impurities are fed into the desorber made in the form of a horizontal disk-type heat-exchange apparatus having the section forming the central zone of feeding of the saturated liquid hydrocarbons and the zones of sublimation and condensation of the hydrocarbons. Desorption is conducted at an excessive pressure in the mode of a reverse flow of the saturated hydrocarbons the vapor phase by heating of the saturated hydrocarbons and evaporation from the film formed on the rotating disks of the light fractions from the side of outlet of the liquid hydrocarbons from the horizontal disk-type heat-exchange apparatus in the zone of sublimation and simultaneous chilling of the wet reflux in the zone of condensations on the opposite side of the horizontal disk-type heat-exchange apparatus. The installation contains the desorber made in the form of the horizontal disk-type heat-exchange apparatus, which is installed inclined to the side of outlet from it of the purified liquid hydrocarbons and is connected by pipelines of feeding of the saturated liquid hydrocarbons and withdrawal of the purified liquid hydrocarbons, on which the pump, the heat exchangers, the containers of accumulation of the saturated and purified liquid hydrocarbons are located. The invention allows to diminish considerably the overall dimensions of the installation, to improve profitability of the purification systems at increasing their efficiency.

EFFECT: the invention ensures reduction of the installation overall dimensions, improved profitability of the purification systems, increased their efficiency.

6 cl, 3 dwg