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C3MR LNG liquefaction

LNGMixed refrigerantCryogenicsClosed loops
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A simplified APCI C3MR train: natural gas and the mixed refrigerant are precooled by a closed propane loop, liquefied to 120 K in a multi-stream main cryogenic exchanger against a closed N2/C1/C2/C3 refrigerant cycle, then let down to storage — LNG at ~115 K. Single-level precool and a single MCHE bundle (a real train uses three propane levels and two bundles); refrigerant charges are set via tear_specs.

The flowsheet

The solved topology — every unit op's real duty, conversion, or split, read straight off a genuine converged solve.

Ngfeed
1
2
3
4
5
6
1
2
3
4
5
6
E1
K1
Cond1
JT1
1
2
3
4
5
6
1
2
3
4
5
6
MCHE
K2
AC
JT2
JTN
DRUM
LNG
BOG

The stream table

Every stream's flow, temperature, pressure, and composition — real converged numbers, not placeholders.

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