Refrigeration – Processes – Circulating external gas
Patent
1988-10-06
1989-07-18
Caposselo, Ronald C.
Refrigeration
Processes
Circulating external gas
62 44, F25J 300
Patent
active
048489964
ABSTRACT:
The present invention is an improvement to a standard nitrogen generator. The improvement is two-fold; first, the addition of one or more distillation stages above the reboiler, which stages effectively transform the reboiler/condenser into a partial low pressure column and allow further separation (rectification) of the nitrogen generator bottoms liquid into two streams. Second, the recycle of the overhead stream (at a composition close to that of air) from the top of the low pressure column to the main air compressor. Additionally, at least a portion of the oxygen-enriched stream that exits the low pressure column below the bottom tray is expanded to provide refrigeration for the cycle.
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: 4222756 (1980-09-01), Thorogood
patent: 4453957 (1984-06-01), Pahade et al.
patent: 4464191 (1984-08-01), Erickson
patent: 4617036 (1986-10-01), Suchdeo et al.
patent: 4702757 (1987-10-01), Kleinberg
patent: 4704147 (1987-11-01), Kleinberg
patent: 4704148 (1984-11-01), Kleinberg
patent: 4705548 (1987-11-01), Agrawal et al.
patent: 4707994 (1987-11-01), Shenoy et al.
Roden Thomas M.
Thorogood Robert M.
Air Products and Chemicals Inc.
Caposselo Ronald C.
Jones II Willard
Marsh William F.
Simmons James C.
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