Air separation process for the production of oxygen-rich and nit

Details Air separation process for the production of oxygen-rich and nit Air separation process for the production of oxygen-rich and nit

1989-05-19

1990-06-26

Capossela, Ronald C.

Refrigeration

Processes

Circulating external gas

62 31, 62 39, F25J 302

Patent

active

049360990

ABSTRACT:
The present invention is an improvement to a two distillation column, cryogenic air separation process which produces nitrogen-rich and oxygen-rich products. The improvement to the process is condensing at least a portion of the nitrogen overhead from the high pressure column in a reboiler/condenser against a crude liquid oxygen stream and in an intermediate reboiler/condenser located in the low pressure column against internal low pressure column streams. The condensed nitrogen overhead is fed either to the low pressure or high pressure columns as reflux. The vaporized portion of the crude liquid oxygen stream is work expanded to provide some or all of the refrigeration required for the process.

REFERENCES:
patent: 2753698 (1956-07-01), Jakob
patent: 4410343 (1983-10-01), Fiemer
patent: 4595405 (1986-06-01), Agrawal et al.
patent: 4617036 (1986-10-01), Suchdeo et al.
patent: 4662917 (1987-05-01), Comier, Sr. et al.
patent: 4670031 (1987-06-01), Erickson
patent: 4704148 (1987-11-01), Kleinberg
patent: 4705548 (1987-11-01), Agrawal et al.
patent: 4715874 (1987-12-01), Erickson
patent: 4769055 (1988-09-01), Erickson
patent: 4781739 (1988-11-01), Erickson
patent: 4783210 (1988-11-01), Ayres et al.
Streich & Dworschak, "Production of Large Quantities of Oxygen by an Improved Two Column Process".

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