CRYOGENIC SEPARATION OF CO WITH APPLICATION OF COOLING SYSTEM Russian patent published in 2015 - IPC F25J3/06 

FIELD: chemistry.

SUBSTANCE: group of inventions relates to a method and system for the separation of CO₂ from a furnace gas flow. A cooling system, intended for the condensation of carbon dioxide (CO₂), which contains a cooling circuit, containing a refrigerant, is described. The claimed cooling circuit contains a multi-step refrigerant compressor, a refrigerant condenser, a refrigerant cooler, a furnace gas cooler, the first CO₂ condenser, the second CO₂ condenser. Also described is a system for the furnace gas purification for CO₂ extraction. The system contains a furnace gas compressor, an adsorption drier, as well as a cooling system for carbon dioxide (CO₂) condensation. The furnace gas cooler is placed between the furnace gas compressor and the adsorption drier of the furnace gas and the first and second CO₂ condensers are placed successively after the furnace gas adsorption drier. Also described is a method for CO₂ condensation in the furnace gas flow, with the application of a circulatory flow of an external refrigerant.

EFFECT: group of inventions makes it possible to ensure effective in terms of costs CO₂ separation with the application of simple, reliable constructions of heat-exchangers and materials.

16 cl, 4 dwg