Refrigeration – Storage of solidified or liquified gas – Including cryostat
Patent
1974-09-16
1976-09-07
O'Dea, William F.
Refrigeration
Storage of solidified or liquified gas
Including cryostat
55189, 62 54, 62512, 111 7, F17C 702
Patent
active
039786811
ABSTRACT:
Cold anhydrous ammonia, preferably cold liquid anhydrous ammonia at substantially ambient or atmospheric pressure is applied to feed grains, forages and anaerobically fermentable plant material to supply thereto and provide therein non-protein nitrogen (NPN). The cold anhydrous ammonia is obtained by supplying a stream of ambient temperature, pressurized anhydrous liquid ammonia to an expansion chamber for expansion therein to provide the cold anhydrous ammonia. Cold anhydrous ammonia, preferably substantially only cold liquid anhydrous ammonia, is recovered from the expansion chamber operated under substantially adiabatic conditions, at a temperature in the range -30.degree.F. to about -17.degree.F. and at substantially ambient or atmospheric pressure, such as at a pressure in the range 1 pound per square inch below atmospheric pressure up to about 5 pounds per square inch atmospheric pressure.
REFERENCES:
patent: 1516314 (1924-11-01), Sebald
patent: 2512869 (1950-06-01), McBroom
patent: 2612760 (1952-10-01), Baggette et al.
patent: 2843534 (1958-07-01), Harper
Anderson Paul M.
Kjelgaard William L.
Capossela Ronald C.
O'Dea William F.
Research Corporation
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