abstract |
A gas liquefaction device and a liquefaction step, wherein the feed stream is fed to a liquefaction device having at least a warm expander and a cold expander, and the feed stream is at a pressure higher than the critical pressure of the feed stream Cooling the pressurized feed stream to a temperature below the critical temperature of the feed stream to form a high pressure dense phase stream, and moving the high pressure dense phase stream from the liquefaction device to produce a hybrid two-phase Lowering the pressure of the high pressure dense phase flow in the expansion device to form a flow, then feeding the mixed two phase flow directly to the storage tank and forming the mixed flow of steam to produce a mixed two phase flow A liquefying device and a liquefaction step, wherein the temperature of the high pressure dense phase flow is lower than the temperature of the discharge flow of the cold expander. |