METHOD AND DEVICE FOR HYDROCARBON FLOW COOLING Russian patent published in 2012 - IPC F25J1/02 

FIELD: process engineering.

SUBSTANCE: proposed method comprises providing stick flow 10, forcing said flow through gas treatment stage 2 including one of large number of the following units: X) parallel gas treatment units 14a, 14b. Note here that in case more than one unit is used, crude gas flow 10 is divided into two or more partial flows 20a, 20b to produce one or more first processed flows 30a, 30b. It includes also forcing first said flows 30a, 30b through liquid natural gas extraction stage 4 including two or more: Y) parallel liquid natural gas extraction units 16a, 16b. Note here that first processed flow 30a, 30b is distributed in compliance with the number of said units 16a, 16b to produce second processed flows 40a, 40b, and forcing said second flows through cooling stage including: Z) parallel cooling systems 22. Note here that second processed flows 40a, 40b are distributed in compliance with the number of cooling units 22 to produce cooled flow of hydrocarbons. Note here that Y>Z.

EFFECT: higher efficiency.

25 cl, 3 dwg