METHOD AND DEVICE FOR COOLING AND SEPARATION OF HYDROCARBON FLOW Russian patent published in 2013 - IPC F25J3/02 F25J1/02 

FIELD: oil and gas industry.

SUBSTANCE: method involves provision of hydrocarbon flow (10), cooling of hydrocarbon flow (10) to obtain liquefied hydrocarbon flow (20), supply at least of some part of liquefied hydrocarbon flow (20) to distillating column (12) through the first inlet opening (17), provision of bottom raw material flow (30), provision of cooling agent circuit (4) containing at least one cooling agent flow (40), heating of bottom raw material flow (30) with counterflow (40) of cooling agent to obtain heated bottom raw material flow (50) and flow (60) of cooled cooling agent; supply of heated bottom raw material flow (50) to distilling column (12) through the second inlet opening (18) located below the first inlet opening (17) and separation of partially liquefied hydrocarbon flow (20) in distilling column (12) to obtain the first upper gaseous flow (70) and the first bottom liquid flow (80).

EFFECT: use of the invention will allow reducing power consumption for cooling process of a cooling agent.

17 cl, 5 dwg, 2 tbl