Dual column high pressure nitrogen process

Details Dual column high pressure nitrogen process Dual column high pressure nitrogen process

1982-12-02

1984-03-27

Sever, Frank

Refrigeration

Processes

Circulating external gas

62 34, F25J 304

Patent

active

044392206

ABSTRACT:
A process to efficiently produce large quantities of elevated pressure nitrogen at a high recovery by the cryogenic separation of air employing two separate columns each of which is equipped with a top condenser and wherein the second column processes a feed stream obtained from the first column.

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patent: 3447331 (1969-06-01), Smith
patent: 3736762 (1973-06-01), Toyama et al.
patent: 4222756 (1980-09-01), Thorogood

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