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A process for liquefying natural gas and recovering any liquid from natural gas, including two semi open refrigerant cycles using natural gas and one closed refrigerant cycle using gas refrigerant
A process for liquefying natural gas and recovering any liquid from natural gas, including two semi open refrigerant cycles using natural gas and one closed refrigerant cycle using gas refrigerant
The present invention relates to a process for liquefying a natural gas comprising a hydrocarbon mixture based on methane, wherein the process condenses any condensed natural gas liquid from the natural gas feed stream, which is then the main stream. The first using natural gas that contributes to the pre-cooling of the main natural gas stream (FP) and the cooling of the initial refrigerant gas stream (G-0) through the cryogenic heat exchanger (4) by heat exchange. In addition to the second half-open refrigerant cycle, the second half-open refrigerant cycle using natural gas, which contributes to natural gas and refrigerant pre-cooling, and further natural gas liquefaction, and the other two cycles And a closed refrigerant cycle using refrigerant gas, which subcools natural gas and provides cooling power. The present invention also provides a natural gas liquefaction facility for performing such a process.
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