Production of large quantities of CO.sub.2 snow

Details Production of large quantities of CO.sub.2 snow Production of large quantities of CO.sub.2 snow

1986-10-28

1987-09-22

Capossela, Ronald C.

Refrigeration

Processes

Circulating external gas

62 46, 62384, F25J 100

Patent

active

046953027

ABSTRACT:
Large quantities of CO.sub.2 snow are provided by a system and method which utilizes two reservoirs which maintain at least about 4500 pounds of CO.sub.2 at about its triple point, a substantial portion of which contains solid CO.sub.2. A first such reservoir subcools high pressure liquid CO.sub.2 flowing therethrough and permits efficient production of CO.sub.2 snow. A second such reservoir assists in cooling and condensing CO.sub.2 vapor recirculating through the system, as well as in efficiently obtaining CO.sub.2 being delivered to the system from an outside source.

REFERENCES:
patent: 2496185 (1950-01-01), Voss et al.
patent: 3660985 (1972-05-01), Tyree, Jr.
patent: 3754407 (1973-08-01), Tyree, Jr.
patent: 3810365 (1974-05-01), Hampton et al.
patent: 3933001 (1976-01-01), Muska
patent: 4211085 (1980-07-01), Tyree, Jr.

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