Refrigeration – Cryogenic treatment of gas or gas mixture – Separation of gas mixture
Reexamination Certificate
2005-09-20
2005-09-20
Doerrler, William C. (Department: 3744)
Refrigeration
Cryogenic treatment of gas or gas mixture
Separation of gas mixture
C062S902000, C062S911000
Reexamination Certificate
active
06945076
ABSTRACT:
An apparatus and method for air distillation. Two cold boxes and an air treatment unit are used to distill air. The cold boxes contain a heat exchanger for cooling the air to be distilled and an air distillation unit for producing either oxygen, nitrogen or argon. The air treatment unit has many individual treatment elements which are connected in parallel. The outlet of the air treatment unit is connected to both cold boxes and to all the individual treatment units.
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French Search Report to FR 02 11232.
“Process and Facility With Particularly High Availability,” Research Disclosure, Kenneth Mason Publications, Hampshire, GB, No. 397, May 1, 1997, pp. 276-279, XP000726402; ISSN: 0374-4353.
Garnier Emmanuel
Gourbier Jean-Pierre
Jaouani Lasad
Judas Frederic
Massimo Giovanni
Doerrler William C.
L'Air Liquide, Societe Anonyme pour l'etude et, l'Exploitation d
Russell Linda K.
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