Refrigeration – Cryogenic treatment of gas or gas mixture – Separation of gas mixture
Patent
1995-02-16
1997-05-06
Capossela, Ronald C.
Refrigeration
Cryogenic treatment of gas or gas mixture
Separation of gas mixture
62918, F25J 300
Patent
active
056260237
ABSTRACT:
A cryogenic system for the recovery of fluorine compounds from a carrier gas stream such as an effluent stream from a semiconductor facility comprising combining the carrier gas feed stream with additive liquid to keep fluorine compounds from solidifying and to reduce the vapor pressure of the fluorine compounds, followed by separation and recovery using a cryogenic rectification column system.
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Fisher Theodore F.
Jin Yijian
Capossela Ronald C.
Ktorides Stanley
Praxair Technology Inc.
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