Liquefaction of natural gas

Patent · Tue Sep 12 04:00:00 EDT 1978

OSTI ID:6074755

Foerg, W

West Germany's Linde AG has developed a new liquefaction process that - compared with similar closed-refrigeration cycles using two multicomponent mixtures - offers improved thermal efficiency, energy savings, and heat-exchanger temperature stability. The first multicomponent mixture, after partial liquefaction, is subjected to a phase-separation step to obtain a first multicomponent gaseous fraction and a first multicomponent liquid fraction. The first multicomponent liquid fraction is expanded and a portion is partially evaporated in indirect heat exchange with (1) the natural gas to be cooled, (2) the first multicomponent gaseous fraction, and (3) the second multicomponent mixture. The resultant liquefied first multicomponent gaseous fraction is expanded and partially evaporated in indirect heat exchange with the cooled natural gas and the second multicomponent mixture, the latter being at least partially liquefied during this heat exchange.

• Assignee: Linde AG
• Patent Number(s): US 4112700
• OSTI ID: 6074755
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
030300* -- Natural Gas-- Drilling
Production
& Processing
DESIGN
EFFICIENCY
ENERGY SOURCES
EQUIPMENT
EUROPE
FEDERAL REPUBLIC OF GERMANY
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
HEAT EXCHANGERS
LIQUEFIED GASES
LIQUEFIED NATURAL GAS
LNG PLANTS
NATURAL GAS
PRODUCTION
WESTERN EUROPE