Refrigeration – Processes – Circulating external gas
Patent
1986-04-24
1987-12-29
Capossela, Ronald C.
Refrigeration
Processes
Circulating external gas
62 22, 62 32, 62 38, 62 42, F25J 500
Patent
active
047158735
ABSTRACT:
Liquid nitrogen, oxygen and/or argon is produced from a cryogenic distillative separation efficiently and economically wherein at least a portion of the liquid air feed bypasses the distillation column and is used to liquefy the gaseous product of the column, and the recycle air stream resulting therefrom is retained at elevated pressure.
REFERENCES:
patent: 3605422 (1971-09-01), Pryor et al.
patent: 4152130 (1979-05-01), Theobald
patent: 4202678 (1980-05-01), Hvizdos
patent: 4375367 (1983-03-01), Prentice
patent: 4400188 (1983-08-01), Patel
patent: 4464188 (1984-08-01), Agrawal
Agrawal Rakesh
Auvil Steven R.
Air Products and Chemicals Inc.
Capossela Ronald C.
Chase Geoffrey L.
Marsh William F.
Simmons James C.
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