The composition of a multi-component refrigerant (MCR) directly affects the thermodynamic efficiency of the liquefaction process because the MCR is designed to provide a tailored cooling curve that closely matches the warming curve of the natural gas being liquefied. An MCR typically consists of a mixture of refrigerants, such as nitrogen, methane, ethane, propane, and butane, each with different boiling points. As the natural gas cools and condenses, its temperature decreases non-linearly, releasing heat at different rates. ....
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