University of Cambridge Process Industries Module

1
Reception
Liquefaction
LNG
Natural Gas
Fractionation
Condensate
LPG
Utilities
Fig. 1 LNG Block Flow Diagram
2
Pure Refrigerant
Natural gas Cooling Curve
Temperature
MixedRefrigerant
Refrigerant Cooling Curve
MixedRefrigerant
Heat
Fig. 2 Typical Natural Gas / Refrigerant Cooling
Curves
3
Expander
To Furnace
C1
ScrubColumn
AcidGas
LNGto Storage
AmineUnit
G
MercuryRemovalUnit
Generator
SourFeedGas
HHP C3
HPC3
MPC3
LPC3
DehydrationUnit
NGL Reinjection
HP Fuel Gas
HP FuelGas
C3
C2
EndFlash Gas Compressor
M
MainCryogenicExchanger
HydrocarbonCondensate toStorage
Fractionation
LP C3
C3 Compressor
MP C3
GT
M
MR Compressor
HP C3
HHP C3
M
GT
HHP C3
HP C3
MP C3
LP C3
Multicomponent RefrigerantSystem
N2
C1
C2
C3
Propane Precooling
RefrigerantMake-up
Fig. 3 APCI Propane Precooled Mixed Refrigerant
Process (Typical)
4
TreatedGas
LNG
Propane
Ethane
Methane
Fig. 4 Phillips Optimised Cascade Process
5
Process Gas
LNG
Fig. 5 Black Veatch PRICO Process
6
Process Gas
Precooling
Liquefaction
Subcooling
LNG
Fig. 6 Statoil . Linde Mixed Fluid Cascade
Process (MFCP)
7
Process Gas
Precooling
Liquefaction
LNG
Fig. 7 Axens Liquefin Process