NATURAL GAS LIQUEFACTION METHOD AND DEVICE FOR IMPLEMENTATION THEREOF Russian patent published in 2020 - IPC F25J1/00 

FIELD: gas industry.

SUBSTANCE: invention relates to methods and devices for liquefying natural gas. When performing liquefaction, a process of recuperative heat exchange of the cold flow is provided to cool the initial gas stream during cleaning of the initial gas stream by recuperation of cold flow heat exchange. Process of centrifugal separation of the formed vapour-liquid mixture in the cyclone due to cooling of the axial flow of the rotating gas stream will condense from the vapour-liquid mixture moisture and heavy hydrocarbons, as well as heavier fractions of impurities and throw them on periphery of rotating flow, and then to separate and withdraw from container. After liquefaction due to vortex energy separation in cooler, cooling and condensation of hot gas flow is performed in upper section of cryostat reservoir, where straight-flow centrifugal separator is located.

EFFECT: this allows compactly marking and implementing complex of process sequence of processes to achieve final target - production of liquefied natural gas at outlet of cryostat reservoir.

3 cl, 1 dwg