Natural gas liquefaction process

The invention relates to a natural gas liquefaction process and particularly to one suited to use offshore. The invention provides a natural gas liquefaction apparatus wherein a carbon dioxide based pre-cooling circuit is provided in a cascade arrangement with a main cooling circuit. The invention a...

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Bibliographic Details
Main Authors PAUROLA PENTTI, FREDHEIM ARNE OLAY
Format Patent
LanguageEnglish
Published 17.06.2008
Subjects
BLASTING
COMBINED HEATING AND REFRIGERATION SYSTEMS
HEAT PUMP SYSTEMS
HEATING
LIGHTING
LIQUEFACTION SOLIDIFICATION OF GASES
LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS
MANUFACTURE OR STORAGE OF ICE
MECHANICAL ENGINEERING
MIXTURES BY PRESSURE AND COLD TREATMENT
REFRIGERATION MACHINES, PLANTS OR SYSTEMS
REFRIGERATION OR COOLING
WEAPONS
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Summary:The invention relates to a natural gas liquefaction process and particularly to one suited to use offshore. The invention provides a natural gas liquefaction apparatus wherein a carbon dioxide based pre-cooling circuit is provided in a cascade arrangement with a main cooling circuit. The invention also extends to a natural gas liquefaction apparatus wherein a main cooling circuit uses as a refrigerant a gas stream, at least a portion of which is derived from a raw natural gas source.
Bibliography:Application Number: US20020221885