LNG Liquefaction with a Single-Expander Nitrogen Cycle
LNG
A single nitrogen expander cycle for LNG liquefaction: high-pressure natural gas (55 bar, ~20°C) is cooled through two multi-stream heat exchangers and throttled via a JT valve to produce LNG, while a pure nitrogen refrigerant loop (compressor → aftercooler → warm HX → turboexpander → cold HX → back to warm HX) provides the refrigeration duty.
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