Air separation

Details Air separation Air separation

1993-04-06

1994-05-10

Capossela, Ronald C.

Refrigeration

Processes

Circulating external gas

62 24, F25J 302

Patent

active

053097211

ABSTRACT:
An improvement to a gaseous oxygen cycle in which refrigeration is provided by two expansion turbines each fed with nitrogen. In addition, some nitrogen is recompressed, returned though the main heat exchanger, condensed and used to form a liquid nitrogen product.

REFERENCES:
patent: 3736762 (1973-06-01), Toyama et al.
patent: 4072023 (1978-02-01), Springmann
patent: 5036672 (1991-08-01), Rottmann
patent: 5123946 (1992-06-01), Ha
patent: 5165244 (1992-11-01), Kleinberg et al.

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