Process and apparatus for producing and using cold ammonia

Details Process and apparatus for producing and using cold ammonia Process and apparatus for producing and using cold ammonia

1978-06-01

1979-11-27

Capossela, Ronald C.

Refrigeration

Storage of solidified or liquified gas

Including cryostat

55189, 111 7, 159 6R, F17C 702

Patent

active

041753941

ABSTRACT:
Cold ammonia, preferably cold liquid anhydrous ammonia preferably at substantially ambient or atmospheric pressure, is applied (1) to the soil as a fertilizer or (2) to feed grains, forages and anaerobically fermentable plant material to supply thereto and provide therein non-protein nitrogen (NPN). The cold ammonia is obtained by (1) introducing a stream of ambient temperature, pressurized liquid ammonia at a velocity of at least about 5000 feet per minute into an expansion chamber, the expansion chamber comprising a substantially vertically elongated barrier means located substantially in the center of the horizontal planes of the expansion chamber and, in the path of the expansion cone of the inlet stream, which barrier means assists in imparting a spinning motion to the inlet stream and allows some liquid ammonia to flow down the barrier means and thereby improves the separation of the liquid and gaseous ammonia, (2) imparting a high velocity spinning motion to the liquid ammonia entering the chamber such that rapid flow is produced around the interior of the chamber to thereby provide rapid separation of the liquid and gaseous ammonia formed in the chamber.

REFERENCES:
patent: 3548569 (1970-12-01), Jepsen et al.
patent: 3913340 (1975-10-01), Hurley
patent: 3978681 (1976-09-01), Kjelgaard et al.
patent: 4069029 (1978-01-01), Hudson
Schutte And Koerting Co. Bulletin 9P, 1954 Apr., Tangential Steam Separator.

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