In　this　study,　the　LNG　cold　energy　recovery　combined　with　a　freezing-centrifugal　desalination　system　is　proposed.　The　thermodynamic　and　economic　analysis　is　also　carried　out　of　the　proposed　system.　To　verify　the　results　of　sea　ice　centrifugation　process,　experimental　analysis　of　sea　ice　centrifugal　desalination　is　presented　based　on　different　types　of　sea　ice:　slurry　and　solid,　which　are　prepared　by　the　method　of　suspension　crystallization　method　and　progressive　freezing　method,　respectively.　The　experimental　outcomes　demonstrated　that　higher　rotation　speeds　and　longer　centrifugal　times　enhanced　the　desalination　rate　but　resulted　in　decreased　freshwater　yield　in　both　slurry　and　solid　ice.　For　the　slurry　sea　ice,　achieving　a　rotation　speed　of　5000　rpm　and　a　centrifugal　time　exceeding　3.0　min　resulted　in　melted　water　with　a　salinity　level　below　0.05%,　satisfying　the　standards　of　drinking　water.　Moreover,　the　unit　product　cost,　payback　period,　and　unit　cost　of　CO2　emission　reduction　for　the　proposed　system　are　0.49　$/t,　3.25　years　and　18.92　kg/$,　respectively.　While　the　unit　product　cost,　payback　period,　and　unit　cost　of　CO2　emission　reduction　for　the　conventional　system　are　about　0.84　$/t,　4.80　years,　and　15.66　kg/$,　respectively.　Hence,　the　proposed　system　shows　higher　economic　and　environmental　performance.　©　2024