Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
June 17, 2008
Patent Application Number
10221885
Date Filed
March 15, 2001
Patent Citations Received
Patent Primary Examiner
Patent abstract
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.
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