Refrigeration – Storage of solidified or liquified gas – Storing solidified gas
Patent
1986-10-21
1987-08-25
Capossela, Ronald C.
Refrigeration
Storage of solidified or liquified gas
Storing solidified gas
220 85VR, F17C 1300
Patent
active
046890645
ABSTRACT:
A method for maintaining constant the composition of liquefied gas in a store (1) comprises extracting product in its gas phase from the store by means of a compressor (8) to raise its pressure. The gas is then cooled in a first heat exchanger (9) and then in a second heat exchanger (10), to a final temperature such that on expanding the gas into a tank (11) most of it is liquefied. The small amount of remaining gas is recycled to the compressor inlet after passing through the first heat exchange as its cooling fluid. The product is also extracted in its liquid phase (3) by a pump (19). The liquid is then passed through a battery of pumps (20) which raise it to a pressure high enough for a distribution network to be directly supplied therewith (after vaporization). A portion of the highly compressed liquid phase is used as the cooling fluid for the second heat exchanger (10).
REFERENCES:
patent: 2959928 (1960-11-01), Maker
patent: 2978876 (1961-04-01), Pastuhov
patent: 3303660 (1967-02-01), Berg
patent: 3857251 (1974-12-01), Alleaume
patent: 3884652 (1975-05-01), Nichols
patent: 4072024 (1978-02-01), Higgins
Boulanger Alain
Luyten Walter
Capossela Ronald C.
Societe Distrigaz
Societe Francaise de Stockage Geologigue Geostock-Tour Aurore
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