Refrigeration – Storage of solidified or liquified gas – Liquified gas transferred as liquid
Reexamination Certificate
2004-09-01
2011-11-29
Tyler, Cheryl J (Department: 3744)
Refrigeration
Storage of solidified or liquified gas
Liquified gas transferred as liquid
C062S045100, C062S047100, C062S048100, C062S048200, C062S050700
Reexamination Certificate
active
08065883
ABSTRACT:
A method and apparatus for the controlled storage of liquefied gases such as liquefied natural gas in an enclosed insulated container, in which part of the liquid is withdrawn and fed to an external refrigeration unit for subcooling and the subcooled liquid is reintroduced into the container via one or more valve-controlled headers under the control of a control system operated in response to pressure and temperature signals from within the container, wherein the level of subcooling is matched to the heat inleak into the container and most or all of the subcooled liquid is reintroduced directly into the stored liquid so as to maintain stable conditions in the stored liquid and to minimise evaporation thereof.
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British Search Report of Application. No. GB 0320474.0 dated Feb. 9, 2004, 1 page.
Cohen Joshua L.
Pettitt John
The BOC Group plc
Tyler Cheryl J
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