NATURAL GAS LIQUEFACTION PROCESS

摘要

PURPOSE: A natural gas liquefaction process is provided to simply keep a liquefaction of natural gas process by providing suitable temperature for separation of mixed refrigerant and separating the mixed refrigerant into a liquid refrigerant part and a vapor refrigerant part. CONSTITUTION: The liquefaction of natural gas process comprises next steps: compressing mixed-refrigerant; cooling the mixed-refrigerant; separating the mixed-refrigerant into a first refrigerant part in a liquid phase and a second refrigerant part in a gas phase; pre-cooling the natural gas in a first heat exchange region(141) by using the first refrigerant part and the second refrigerant part; liquefying the natural gas by using the second refrigerant part.