Refrigeration – Processes – Circulating external gas
Patent
1986-08-20
1987-10-27
Capossela, Ronald C.
Refrigeration
Processes
Circulating external gas
62 32, 62 43, F25J 302
Patent
active
047027576
ABSTRACT:
In a process utilizing high and low pressure distillation columns for the production of an oxygen-enriched air product, feed air is fed to the main heat exchangers at two pressures. The high pressure feed air from the main exchanger used to supply refrigeration, by expanding a portion of the high pressure air prior to introducing that portion into an intermediate location in the low pressure column, and to vaporize the oxygen-enriched air product prior to using the stream as reflux for the high pressure column. The low pressure feed air from the main heat exchangers is partially condensed to supply reboiler duty to a low pressure column and is then fed to a high pressure column. The high pressure column condenser is used to reboil an intermediate liquid in the low pressure column.
REFERENCES:
patent: 3210951 (1965-10-01), Gaumer
patent: 3277655 (1966-10-01), Geist et al.
patent: 3327489 (1967-06-01), Gaumer
patent: 3754406 (1973-08-01), Allam
patent: 3763658 (1973-10-01), Gaumer, Jr. et al
patent: 4433989 (1984-02-01), Erickson
patent: 4464191 (1984-08-01), Erickson
patent: 4615716 (1986-10-01), Cormier et al.
patent: 4617036 (1986-10-01), Suchdeo et al.
patent: 4617037 (1986-10-01), Okada et al.
Air Products and Chemicals Inc.
Capossela Ronald C.
Innis E. Eugene
Jones II Willard
Simmons James C.
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