Refrigeration – Cryogenic treatment of gas or gas mixture – Separation of gas mixture
Patent
1995-07-20
1996-10-22
Kilner, Christopher
Refrigeration
Cryogenic treatment of gas or gas mixture
Separation of gas mixture
F25J 300
Patent
active
055665560
ABSTRACT:
Air is distilled in a distillation apparatus (13) associated with a heat exchange line (11) in which is circulated a heat transfer fluid under high pressure. A storage (20, 23) is supplied, at least intermittently, with gas in liquid phase; and gas in liquid phase withdrawn from the storage is raised to a vaporization pressure, and vaporized under this pressure in the heat exchange line (11). The supply of liquefied gas to the storage can be from the distillation apparatus (13) and/or from an external source such as a tank truck (29, 34). It is useful particularly for the supply of oxygen, nitrogen and argon under pressure to installations for the production of stainless steel such as electric arc furnaces.
REFERENCES:
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patent: 5209070 (1993-05-01), Darredeau
patent: 5265429 (1993-11-01), Dray
Ekins Robert
Guillard Alain
Kilner Christopher
L'Air Liquide Societe Anonyme pour l'Etude et, l'Exploitation de
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