CARBON DIOXIDE LIQUEFACTION LINE Russian patent published in 2010 - IPC F25J1/02 

FIELD: chemistry.

SUBSTANCE: carbon dioxide liquefaction line includes ammonia compressor with supercooler of liquid ammonia and throttling device, carbon dioxide compressor, carbon dioxide condenser, and separator designed for accumulation of low-temperature liquid carbon dioxide. Liquefaction process of carbon dioxide compressed in compressor is performed owing to simultaneous use of throttling cold of supercooled ammonia and gasification of carbon dioxide before it is supplied to production of carbamide with pressure of 15 MPa due to pre-compression with the pump.

EFFECT: reducing power consumed for carbon dioxide liquefaction.