Process and installation for producing gaseous nitrogen with var

Details Process and installation for producing gaseous nitrogen with var Process and installation for producing gaseous nitrogen with var

1993-10-15

1994-10-18

Capossela, Ronald C.

Refrigeration

Processes

Circulating external gas

62 37, 62 40, F25J 300

Patent

active

053556801

ABSTRACT:
In this process of the liquid nitrogen/rich liquid HPN swing type, the connection between the head of the column (4) and the liquid nitrogen holding tank (7) is effected, for the two flow directions of the liquid nitrogen, by a single conduit (12) equipped with a pressure reducing device (13). The direction and the flow rate of the liquid nitrogen flow are controlled by the variations of the pressure of the column, and the holding tanks of liquid nitrogen and rich liquid are maintained at constant pressures.

REFERENCES:
patent: 4617040 (1986-10-01), Yoshino
patent: 5084081 (1992-01-01), Rohde
patent: 5157927 (1992-10-01), Darchis et al.
patent: 5209070 (1993-05-01), Darredeau
patent: 5224336 (1993-07-01), Agrawal et al.
patent: 5271231 (1993-12-01), Ha et al.

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