Cryogenic air separation with combined prepurifier and regenerat

Details Cryogenic air separation with combined prepurifier and regenerat Cryogenic air separation with combined prepurifier and regenerat

1997-07-30

1998-09-08

Capossela, Ronald C.

Refrigeration

Cryogenic treatment of gas or gas mixture

Separation of gas mixture

62644, 62909, F25J 100

Patent

active

058028722

ABSTRACT:
A method is provided for separation of air by cryogenic rectification comprising compressing feed air, passing the compressed feed air through a prepurifier wherein the air is substantially cleaned of impurities, thereafter cooling the cleaned air in a cooled regenerator and then introducing it into a cryogenic air separation facility wherein it is separated into nitrogen-rich and oxygen-rich components.

REFERENCES:
patent: 1945634 (1934-02-01), Frankl
patent: 2825212 (1958-03-01), Linde
patent: 3508412 (1970-04-01), Yearout
patent: 3950957 (1976-04-01), Zakon
patent: 4133662 (1979-01-01), Wagner
patent: 4367082 (1983-01-01), Tomisaka et al.
patent: 4557735 (1985-12-01), Pike

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